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BEHAVIOR EVIDENCE:
UNDERSTANDING MOTIVES AND DEVELOPING
SUSPECTS
IN UNSOLVED SERIAL RAPES THROUGH
BEHAVIORAL PROFILING TECHNIQUES
by Brent E. Turvey, MS
June, 1996
Note: Brent E. Turvey, MS
is a full partner of Knowledge
Solutions, LLC.
He can be reached for comment or consultation by contacting:
Knowledge Solutions; 1271 Washington Ave #274; San Leandro, CA;
94577-3646;
Phone (510) 483-6739; Email: bturvey@corpus-delicti.com

THE ROLE OF BEHAVIORAL
PROFILING
IN UNSOLVED SERIAL RAPE
By definition, the serial rapist is a successful criminal
because law enforcement fails to connect his crimes, fails to
understand his motives, and subsequently fails to identify
and apprehend him. It has been demonstrated that the serial
rapist, as a career sex offender, develops over time any
number of means for keeping his identity unknown, and evading
detection by law enforcement (Hazelwood[21]). The serial
rapist knows how to position himself for rape activity,
engage in rape activity, and continue to rape successfully,
without any concern that law enforcement will understand,
identify, and apprehend him. This is because his fantasy
motive is a personal dynamic, and because his MO is
progressively flexible. The occurrence of these traits in a
single offender, who is committing multiple rapes, gives rise
to the need for relevant, objective forensic tools
specifically designed to assist in the execution of
investigations into rapes for which their are no suspects,
and for which the motive is not understood by law
enforcement.
Behavior profiling can be one such forensic tool. It is,
however, not the only forensic tool that should be used in
the course of an investigation into a series of unsolved
rapes. Any behavioral profile is only as good as the lab that
collected and examined the physical evidence, and only as
effective as the investigators charged with acting on, and
extrapolating from, information provided by the behavioral
profile. Additionally, a behavioral profile cannot compensate
for a lack of investigative skill, as it requires
investigative skill to compile and implement. It does not
promise psychic answers, and it cannot guarantee the complete
and positive identification of specific suspects. It's
primary roles are to assist the investigator with the
development of potential suspects, show insight into offender
motives, focus investigative strategy, and finally assist
with offender prosecution.
In 1985, Liebert[32] wrote an article suggesting strongly
that the sexual motivations of serial killers and other
serial sex criminals were too complex for the FBI and other
law enforcement agencies to understand. He stated
specifically that "Behavioral science profiling can be
superficial, phenomenological and, perhaps, even worse,
distracting". Liebert further concluded that only the
coalition of well trained investigators from a law
enforcement agency with a psychiatric consultant could reduce
wasteful investigative diversions in instances of serial sex
crimes.
Investigative methods and training initiatives have been
enhanced a great deal since the writing of that article, but
the attitude that the mental health community alone has
special insights into the fantasy motives of a sex offender,
that are unobtainable by the trained criminal investigator,
pervades. In light of the fact that psychiatrists still fail
to accurately predict offender dangerousness for two out of
every three of their patients, even where those offenders
have a history of violent behavior (Starrs et al[40]), this
author finds that notion of special insight wholly misplaced.
The mental health community does not have a monopoly on the
ability to understand the fantasy motives of serial sex
offenders and to make subsequent investigative assertions
based thereon.
Profiling is one tool among many, like blood-splatter
interpretation or wound pattern analysis, that can be
successfully applied by a trained investigator. It's a form
of pattern analysis and should be perceived no differently by
those who require it or those who use it for investigating
serial rape. Blood splatter analysis can tell investigators
the order, number and direction of blows that a sadistic or
anger-retaliatory rapist gives his victims from cast-off
patterns on his basement ceiling. Wound pattern analysis can
tell investigators whether or not the slashes on a rape
victims arm where self-inflicted. As part of a serial rape
investigation, behavioral profiling assists in sorting out
complex offender behaviors and expressions so that the
fantasy motive and MO can be reconstructed.

OBJECTIVES
The chief goal of this work is to provide law enforcement
investigators with an objective profiling tool for
investigating serial rapes, with a key assumption being that
investigators are capable of being objective. While some
behavioral profiling can still have the shortcomings that
Liebert[32] mentions, a carefully constructed behavioral
profile objective to the sex offender's point of view can be
invaluable to an investigation into serial sex crimes for
which there are no suspects and no apparent motives.
This work will focus on two of the primary roles played by
behavioral profiling when applied to a series of unsolved
rapes; the development of potential suspects, and
understanding fantasy motives. First, it will discuss linkage
blindness[43], and the necessity of
developing initiatives to overcome linkage blindness[43] to successfully begin investigation into
a serial rape case. Second, it will discuss what is meant by
the term behavior evidence, and the different types of
behavior evidence that can be relevant in a serial rape
investigation. Third, it will discuss the crime scene
signature of the serial rapist and his flexible MO. Fourth,
it will discuss a comprehensive rapist typology and motive as
painstakingly researched and developed by the FBI's NCAVC and
many others. Fifth, it will conclude by discussing
investigatively relevant inferences that can be made about
potential suspects from behavior evidence as defined in the
previous sections, with specific examples of each.

THE PROBLEM: Linkage Blindness
([43]Egger)
One of the most readily identifiable problems with the
nature of a serial rape investigation is that it often tends
to begin late in a given series of rapes. By the time law
enforcement has recognized the serial nature of a rape, or
has linked rapes together in an undeniable series, there are
likely already a high number of victims and a great deal of
behavior evidence that has not been collected or
investigated. This is the product of linkage blindness[43].
Geberth[16] offers us an excellent definition of linkage
blindness[43]: "...an
investigative failure to recognize a pattern which links one
crime with another crime in a series of cases through
victimology, geographic region or area of events, the
Signature of the offender, similar MO, and a review of the
autopsy protocols". The individual and community
devastation that is the net effect of serial rape makes
linkage blindness[43] particularly
distressing. To the investigator of serial rapes, however,
equally devastating is the loss of the opportunity to collect
the behavior evidence, ignored in early rapes, that could
focus investigative strategies, lead to suspects, and
potentially prevent subsequent offenses.
Linkage blindness[43] manifests
itself for a number of reasons, and is not exclusively an
indicator of law enforcement incompetence, but rather
ignorance. One of the primary reasons for linkage blindness[43] is the way in which law enforcement
generally makes connections between sex crimes. Connections
tend to be made between most sex crimes on the basis of
obvious consistent elements in an offender's MO, such as the
type of weapon used, victim selection, or location
selection(Ressler[37]). Attention to the offender's MO as
though it will never change between incidents can keep
investigators from recognizing other significant behavioral
indicators. As Geberth[16] reminds us, an MO is dynamic,
being comprised of learned behaviors that develop over time
and change with the offender's experiences and confidence.
Failure to understand and accept this concept can effectively
blind investigators to potentially relevant possibilities.
Other major contributors to linkage blindness[43] are far less blameless, including the
failure to resolve inter-jurisdictional conflicts, and the
outright refusal of law enforcement to acknowledge
occurrences or instances of serial sex crime within their own
jurisdictions or those that neighbor them(Holmes et al[26]).
A Serial Rapist, for the purposes of this work, will be
defined as a rapist who has raped two or more victims on
different dates. The adjustment of this number down from
three or more rapes is an attempt to address linkage
blindness[43], and to help set the
stage for a proactive mindset in what are typically reactive
investigations. What is rape #1 for Law Enforcement
Jurisdiction X, may be the sex offender's sixth rape. Waiting
until there are three rape victims before investigative
initiatives escalate to measuring, anticipating and acting
upon potential offender behavior is entirely misplaced,
considering potential offender mobility and jurisdictional
communication problems.
The implication of this definition is that, until
otherwise established, all rapes should be investigated as
though they were part of a series to avoid failures in
collecting behavioral evidence.
Once linkage blindness[43] has been
overcome and a series of rapes has been connected,
investigators are confronted with the onerous task of
disposing of a series of unsolved rapes with no known
motives, and no known suspects. The investigators must go
back to the earliest known rapes and look at them with a new
eye. Often this means the arrival of new jurisdictional
conflicts.
The solution to jurisdictional conflicts is a task force.
If each agency is playing against another, then the only one
being helped is the serial rapist. It is incumbent upon
agency directors to get their investigators together on the
same team working towards a common goal sharing all of their
information. Anything short of that puts agencies in
competition with each other and provides for linkage
blindness in future cases. In any event, behavior evidence
must recognized and collected from each known offense in
meticulous, uniform detail for behavior profiling to be
successful.

MOTIVE, SIGNATURE, AND MODUS
OPERANDI
Although it bears a great deal of importance in
understanding the relationship between fantasy, motive and
Modus Operandi, the concept of the crime scene signature was
not explored in many works on serial sex crimes before the
beginning of this decade (Holmes et al [8], Geberth[15],
Hickey[24], Holmes[25], James[27], Keppel[28], Norris[36]).
Although these are well researched works with excellent
content owing to the experience of the academics and
investigators who wrote them, they are, with the distinct
exception of Vernon Geberth's critical work Practical
Homicide Investigation, exercises in popular literature. Each
work proposes, in it's own far less than objective style, to
recount in graphic detail the horrors committed by batches of
the same popularized violent serial sex offenders. Almost in
direct competition with pulp books written by true crime
authors, these works leave much to be desired in the way of
objectively analyzing known solved serial crimes and offering
useful interpretations of motivation. More disappointingly,
the truly useful material in these works is couched deeply in
moral rhetoric.
This author would distinguish those works from actual
research being done in the area of serial sex crimes by
individuals and organizations the likes of Burgess, Geberth,
Groth, Marshall, Quinsey, Warren, and the people of the
NCAVC. These and others like them are the true pioneers of
serial sex offender research, and our current understanding
of MO behavior and the Fantasy Motive is owing to their
efforts. That in mind it is safe to say that a more competent
and objective understanding of the motives and MO of serial
sex offenders has prevailed in literature since the beginning
of this decade.
The precise definition of a signature, however often
inferred, is still generally vague and elusive in the
literature. The best specific definition of the term is
proffered by the man who originally came up with the concept
of signature, John Douglas[12]. Quite appropriately, he
juxtaposes the definition of MO and signature: "Modus
operandi - MO - is learned behavior. It's what the
perpetrator does to commit the crime. It is dynamic - that
is, it can change. Signature...is what the perpetrator has to
do to fulfill himself. It is static; it does not
change." Thiel[41], offers another insight into
signature, saying, "You should ask yourself what the
offender did at that crime scene that he did not have to
do". Signature, it should be understood, is a product of
the offender's fantasy[6]. It will give insight into the
fantasy motive, and it will be of help when determining if
two seemingly unconnected rapes were committed by the same
rapist.
The MO, however, changes over time with experience and
confidence, meeting the needs of the rape behavior. It will
evolve to allow the fantasy behavior, and whatever works will
remain and whatever fails to work will not be repeated[6]. In
this way, the rape is a classroom to the rapist, teaching him
what will work and what will not.
Example:
A rapist has a fantasy that involves kidnapping
adolescent schoolgirls, raping them, and pinching their
nipples with pliers while harnessing their mouths with a
horses bridle. He also wants to audio tape the victims
screams so that he can play it back to later victims,
something he believes will induce extreme fear. Over time
he develops an MO as follows: he gets a van, sound-proofs
it, gets an audio tape recorder, and begins to cruise in
the neighborhoods near public middle schools at precisely
the time each day that school is let out.
The signature in this example would be the particular,
brutal nature of the torture the rapist wants to inflict on
the victim. He also has a propensity for nipples, so that
also must be considered part of his signature as well. If he
played back an audio tape of a previous victim to a current
victim, this would also be part of his signature.
Additionally, the use of a horses bridle, or something
restricting the victims mouth would have to be included.
These are examples of behaviors that he desires to do, that
he takes time to do, that he does not need to do to
accomplish the rape. They are all, also, of the same theme:
producing a combination fear/ pain response in the victim.
This signature, an aggregate of all of that sadistic
behavior, is a product of a rich and intense sadistic fantasy
life.
The MO in this example is comprised of the facilitating
behaviors and instruments. The MO would include the use of
the sound proof van, the location selection, the time of day,
and the acquisition of a tape recorder. Another important
aspect of the MO is the need to find someplace safe to drive
the van where he can park it undisturbed for several hours
while he tortures the young girl. Any of these elements will
change as flaws or circumstance fluctuate, or as the offender
learns and becomes more proficient.
The relationship of the rapist's signature to the rapist's
MO provides a useful classification for two types of
behaviors that deserve close attention in serial rapes;
Fantasy Oriented, which address the motive for the rape, and
Modus Operandi Oriented, which are functional behaviors
serving the successful completion of the rape. It must be
understood, however, that the MO behaviors not only
facilitate but can also later contribute to the expression of
the fantasy behaviors over time and experience. In other
words, the MO is developed over time by the offender to
satisfy and contribute to the specific needs of the fantasy
behavior which is the motive for the rapes.
Example:
An unknown subject rapes a woman in her home, using
a rope garrote to control her while he rapes her, causing
little or no other physical damage. The offense takes 10
or 15 minutes and then the offender leaves through the
back door of the residence which shows signs of forced
entry. Over the next two months, two more rapes are
committed by the same rapist with roughly the same MO,
each taking about ten to fifteen minutes, bringing the
total rapes to three. Investigators are able to make the
connections right away because of DNA evidence collected
at the various scenes, and because they are all committed
within a twenty block radius in the same suburb. During
rape number three, it is noted, the victim struggled a
great deal and very heavy ligature furrows are observed
on her neck. A week later, a fourth victim emerges. The
fourth victim explains in her statement how the offender
brought her in and out of consciousness intentionally
using a rope garrote, and how the offender spent almost
an hour with her. DNA evidence is unavailable for this
fourth rape. Law enforcement decide to conduct a profile
in the hopes of linking the rapes and developing
investigative strategy. The question arises: is victim
number four related?
All else being equal, this is the same offender. What has
occurred is that the offender, over time, has eroticized the
use of the garrote. During the first rapes, the garrote was a
means to acquire and maintain control of the victim (MO
Oriented). Over time and experience, the offender developed a
sexual desire to strangle his victims while raping
them(Fantasy Oriented). This is not surprising given the
strong association of the garrote with the act of rape during
the first few attacks. The presence of an object or behavior
during sex can quite easily lead to it's eroticization and
inclusion in fantasy and subsequently fantasy behavior.
As Keppel[29] notes in his recent publication embracing
the signature aspect of violent serial crime, the MO contains
only those behaviors necessary to commit the crime. Those
behaviors may change as the rapist learns and finds more
beneficial methods. Anything done that goes beyond the crime
should be focused on by investigators for purposes of
establishing linkages between rapes and establishing the
rapist's fantasy motive.

DISTINGUISHING THE BEHAVIOR
EVIDENCE
Behavior evidence, for the purposes of this work, will be
defined as any act or omission of act indicative of a general
or specific pattern of behavior, or indicative of a general
or specific intent. The legal suggestion of this term is
imperative, because it directs that, just like physical
evidence according to Lee[30], behavior evidence should be
recognized, documented, collected, identified, compared,
individualized, and reconstructed. Behavior evidence is a
form of pattern evidence (Burgess et al[6], [30]). Failure to
recognize and document offender behaviors is a failure to
collect pattern evidence, and failure to collect any evidence
is negligent.
The most common objective sources of behavior evidence are
going to be, but are not by any means limited to:
- Victim statements (i.e. written and audio-taped)
- Crime scene documentation (i.e. maps, blueprints,
sketches, photos and video
- Physical evidence and subsequent documentation (i.e.
photos and actual evidence
- Victim injuries and subsequent documentation (i.e.
photos and video
- Victimology (i.e. occupation/activity/history/ age/
physical traits)
The behaviors that a serial rapist uses in the preparation
and commission of his rapes are evidence that can be used to
classify and even identify him because of their collective
uniqueness[5]. The investigator begins with a universal set
of offender characteristics, and then begins to ask questions
about offender behavior that develop the unique set of
characteristics. This process of going from the universal set
to the unique set of offender characteristics begins with the
recognition and collection of the above types of behavior
evidence, and is the absolute cornerstone of behavioral
profiling.
Some important kinds of serial rapist behaviors are listed
below (Burgess et al[2], Burgess et al[5], Geberth[15],
Hazelwood et al[22], [30]). The list is useful for reference,
but mostly demonstrates what is meant by the term behavior
evidence, and the difference between MO Oriented and Fantasy
Oriented behaviors :
I. FANTASY ORIENTED
A. GENERAL
1. Rape kit(is there one? content?)
2.Victim/victimology (age, occupation, activity,
physical traits, history)
3.Language used/conversation (script)
4. Items taken from the crime scene or victim
B. SEXUAL
1. Foreplay/ fondling
2.Sexual acts
3. Nature of sexual acts (rough/submissive/protected
etc.)
4. Order of sexual acts
5. Ejaculation (Yes or no/ where?)
C. PHYSICAL
1. Damage/injuries to the victim
2. Nature of the force used
3. Offender response to victim resistance
4. Victim bondage
II. MODUS OPERANDI ORIENTED
A.LOCATION
1. Methods of gaining entry to a premises
2. Offense occurrence variables (day of
week/time/interval)
3. Primary or secondary scene(how was the body moved?)
4. Sequence of actions taken
5. Location type (residence/vehicle/outdoors)
6. Victim risk
7. Offender risk
8. Materials acquired at the scene
9. Materials left behind at the crime scene
B. TRANSPORTATION
1. Vehicles used(why is it necessary for MO?)
2. No vehicle used(how did he get there without a
vehicle?)
3. Routes taken
4. Distance between location of initial attack and
location of rape
C. CONTROL
1. Style of attack used (blitz/ con/ surprise)
2. Weapons used
3. Disguises used
4. Verbal threats
5. Concealing behaviors (condoms/wiping up ejaculate/
covering victims eyes/ false information to victim)
It's important to try and assess which category rape
behaviors are in, because it becomes a tool to gauge offender
escalation, progression and experience. It can also help
investigators to predict future offender behavior, potential
location choices and other investigatively relevant factors.
If you can know what kinds of behaviors the rapist is likely
to develop and engage in during future attacks, you can often
infer the victim type, the location, the time requirement,
and the props that the offender will need to successfully
engage his fantasy. Again, this a proactive approach to the
serial rapist investigation.
Also, be aware that this is not an all inclusive list of
behavior evidence, but it is a good place to begin thinking
about the kinds of evidence that should be collected and
reconstructed. Each case will present it's own unique
behavioral peculiarities that will have to be attended to,
and for which there is no specific preparation except the
investigators recognition abilities. In that sense, each
serial rape case is a classroom with the investigators as
it's students.

TYPOLOGY AND FANTASY MOTIVE
Over the past decade, the FBI's National Center for the
Analysis of Violent Crime (NCAVC) and those associated with
it have generated some of the most insightful work on the
nature of serial rapists that exist anywhere in the
professional literature. One of the most useful
accomplishments of their research has been the continuing
development of a rapist profile typology that is fairly
objective to the offender's point of view. Although it does
not provide a dynamic scale which measures a rapist over
time, it is an excellent way to assess a rapist at a
particular moment. The typology provides a psychological
snapshot of a rapist during an instance from which some
reliable inferences can be made. Perhaps, if applied over
time and several rape offenses, it may provide insight into
both solved and unsolved dynamic rapist behavior.
The following are the five different rapist types as
defined by A. Nicholas Groth[19], as developed by Marshall et
al[34], as defined by the NCAVC in the Crime Classification
Manual[6], as developed in articles published by the NCAVC
regarding serial rape (Burgess[3], [5], [9], [10], [21],
[22], [23]), as presented by S.A. Max Thiel(ret.)[41], and as
discussed most recently by Holmes et al[26]. The five
different rapist types outlined in this work are: Power
Reassurance, Power Assertive, Anger Retaliatory, Anger
Excitation, and Opportunistic.
When applying this typology to solved or unsolved serial
rape cases, the investigator will invariably notice that
actual rapists are not generally represented by the typology
in pure form. It is most likely that a rapist will fit into
more than one of the categories below. What the investigator
must discern is what characteristics the offenders have, and
then decide which typology best represents a particular
rapist, all the while with an eye to potential future
behavior based on the recognizable overlapping. For example,
a Power Assertive rapist could develop over time into an
Anger Excitation rapist. The potential for that could be
measured by Anger Excitation behaviors identified in early
rapes, and watching them evolve from incidence to incidence,
as the rapist gains confidence and experience.
Included below are the traits of each rapist type with
specific examples meant to demonstrate key behaviors of each:
I. Power Reassurance
(AKA Compensatory)
Method of attack: Surprise
A. Fantasy Behavior
1.Verbal/Script
-Reassures victim he does not wish to harm her
-"You're beautiful, I bet you have a lot of
boyfriends"
-"You have nice breasts"
-"Tell me that you love me"
-"I'm so ugly, you're so beautiful"
-Voices concern for victim welfare: "Am I
hurting you"
-Possibly apologetic: "Please forgive
me"
-May ask about her sexual interests, or may ask to
evaluate his sexual skills, both of which serve
reassurance needs
2. Sexual Behavior
-Foreplay attempt
-Will involve victim
-Will do what the victim allows him to do
-Lacks confidence, may not force victim to comply
physically
-If the victim rejects demands, he may cease or
negotiate
3. Physical Behavior
-Minimal force used to intimidate victim
-Will rely on threats or the presence of a weapon
-Will not generally harm the victim, physically
B. MO Behavior
1. Victims are strangers, generally, or live in the
same area as the rapist
2. Targets several victims in advance
3.Engages in surveillance of victims
4. Engages in voyeurism
5. Makes obscene phone calls
6. Attacks occur in late evening or early morning
7. Victims will either be alone or with small children
8. Will be near same age as victim
9. Attack will last short period of time: duration
will increase with victim passivity
10. May take personal item; undergarment or photograph
11. Attacks are consistent, with need for reassurance
12. Locations of attacks will remain within same
general vicinity
13. May keep a record of attacks
14. Most likely to terminate rape if victim resists
15. MAY RECONTACT THE VICTIM*
Example:[19]
A statement made by a Power Reassurance rapist regarding a
conquest fantasy:
"The fantasies began with going to a bar and
picking up a girl, and these changed to increasingly more
drastic attempts. I'd think about either going to big
parking lots or to a quiet area where there might be
girls walking and confronting them. I began to have the
thought that perhaps sometime if I did this, that the
woman would agree or perhaps almost attack me - perhaps
just my appearance or whatever would just turn her on and
she would almost literally attack me in a complete state
of sexual excitement, that she would rape me as if I were
just what she had been waiting for. I would fantasize
about confronting a girl with a weapon, a knife or a gun,
and that she would tell me that I didn't need it and that
she wanted me, and that she wanted me sexually. She would
say, 'No, you don't need it, you don't need a gun, you
don't need any of this, you're enough.',".
*Note: This is the only type of rapist that may attempt to
re-contact the victim after the rape. He expected her to
respond erotically to his advances. In his mind, she might be
in love with him and she has enjoyed the rape. From his point
of view, it was more of a date than a rape, and he may
re-contact the victim for another date.
As pointed out in the CCM[6], the core fantasy motivating
this rapist is that the victim will enjoy and eroticize the
rape, and subsequently fall in love with the rapist. This
stems from the rapist's own fears of personal inadequacy,
hence the term commonly applied to this rapist is "an
inadequate personality." The rape is restorative of the
offender's doubts about himself, and therefore sexually and
emotionally reassuring. It will occur as his need for that
kind of reassurance arises.
II.Power Assertive
(AKA Exploitative rapist?)
Method of attack: Con or Surprise
A. Fantasy Behavior
1.Verbal/Script
-Does not generally want the victim to be verbally
or otherwise involved in the rape
-Gives sexual instructions/commands
-His pleasure is primary
-Very "macho"
-Uses a great deal of profanity
-Demeans and humiliates the victim
-Language is offensive and abusive
-Verbally explicit about sex
-"Do what I say and you won't get hurt"
-"Shut up or I'll kill you"
2. Sexual Behavior
-He will do whatever he wants to the victim,
sexually or otherwise
-No fondling or kissing or foreplay behavior
-Repeated sexual assaults
-He may sexually punish or abuse his victims
-He may engage in pull, pinch or bite behaviors
-His sex goal is capture, conquer, and control
-Uses the victim as a prop only; an object for his
sexual fantasy
3. Physical Behavior
-The rapist will choose locations that are
convenient and safe
-He will engage in moderate, excessive, or brutal
levels of force that increase with victim resistance
or his level of sexual dysfunction during the offense
-The rapist may rip or tear the victims clothing
-The rapist may engage in repeated sexual assaults
during an attack
B. MO Behavior[19], [14]
-The victim can be pre-selected or opportunistic(too
good to pass up)
-Age range tends to be same, can vary with opportunity
-Victim chosen by availability, accessibility, and
vulnerability
-The location is victim dependent
-Weapon can be involved, or substituted with higher
levels of force
-Physical aggression is used to initially overpower
the victim
-Victim may be held captive in some fashion while
being raped
Example:[19]
A statement made by a Power Assertive rapist regarding his
reasons for rape:
"All my life I felt I was being controlled,
particularly by my parents, that people used me without
any regard for my feelings, for my needs, and in my rapes
the important part was not the sexual part, but putting
someone else in the position in which they were totally
helpless. I bound and gagged and tied up my victims and
made them do something they didn't want to do, which was
exactly the way I felt in my life. I felt helpless, very
helpless in that I couldn't do anything about the
satisfaction I wanted. Well, I decided I'm going to put
them in a position where they can't do anything about
what I want to do. The can't refuse me. They can't reject
me. They're going to have no say in the matter. I'm in
charge now."
This type of rapist has absolutely no doubt about his own
adequacy and masculinity. In fact, he uses rape as an
expression of his own male virility. In his perception, he is
exercising his prerogative as male to commit rape.
This rapist may grow more confident over time, as his
egocentricity is very high. He may begin to do things which
might lead to his identification if fully investigated.
Police may interpret this as a sign that the rapist desires
to be caught. What is actually true is that the rapist has no
respect for the police, has learned that he can rape without
fear of identification or capture, and subsequently does not
take precautions that he has learned are unnecessary.
It is not this rapist's desire to harm the victim, but to
posses her sexually. Power over his victim's sexuality is his
means of expressing his mastery, strength, control,
authority, and identity to himself (psychologically
compensatory). The goal of this rapist is sexual conquest and
control, and he will use only the force he deems necessary
during a particular rape to accomplish it.
III. Anger Retaliatory
(AKA Anger or Displaced rapist)
Method of attack: Blitz
A. Fantasy Behavior
1.Verbal/Script
-Verbally selfish
-May blame victim for events and perceived events
-Very angry, hostile language
2. Sexual Behavior
-Sexually selfish
-Sex is violent, an extension of the physical
attack
-No foreplay attempt
-May attempt to force victim to perform acts that
the rapist perceives as degrading or humiliating
(fellatio or sodomy)
3. Physical Behavior
-Ripping of victims clothing
-Excessive victim force and damage
B. MO Behavior
-Unplanned attack
-There is an immediate application of direct physical
force to the victim; the rapist attacks first, then continues
into the rape as an extension of that attack
-Offenses are sporadic; occur anytime day or night
(whenever he gets pissed off)
-Will use weapons of opportunity(found at scene)
-Victims are same age or older and must be women
-Duration of attack is very short
-There is a lot of anger evident in the crime scene
-Victims often know the rapist well, but can be victims
who symbolize people the rapist knows well
Example:[19]
A statement made by an 24 year old Anger Retaliatory
rapist regarding his revenge fantasy:
"Right now I wouldn't put anything past me.
Some of the stuff that goes through my head - I could do
anything. I've always been one that never let anyone fuck
me over and get a second try. In fantasy I take it out on
anybody: Cops, judges, prosecutors. Usually I think of a
cop or prosecutor, and I think of his wife, daughter, or
sister. I rape her in front of him, and then I kill her,
and maybe I hurt him, but I always leave him alive so
he'll remember."
The Anger Retaliation rapist is just what the name
suggests. The rapist is offending on the basis of cumulative
experienced or imagined insults from people that are in his
world. The rape victim may be one of these people such as a
relative, a girlfriend, or a coworker. Or the victim may
symbolize that person to the offender in dress, occupation,
and/or physical characteristics. Sex, in either case, becomes
a weapon that the rapist uses for revenge.
The sexual control and humiliation of the victim is an
extension of the offender's physical attack. The main goal of
the rapist is to service his cumulative aggression. He is
retaliating against the victim for wrongs or perceived
wrongs, and his aggression can manifest itself spanning a
wide range, from verbally abusive epithets to hyper-aggressed
murder.
It is important not to confuse this type of offender with
the Anger Excitation rapist. Although they do share some
characteristics, the motivations are wholly separate. Also, a
distinct lack of planning and overall rapist preparedness
will be apparent at the Anger Retaliatory rapist crime scene.
IV. Anger Excitation
(AKA Sadistic rapist)
Method of attack: Con
A. Fantasy Behavior
1.Verbal/Script
-The rapist will initially say things that lower
the victims guard
-The rapist reads the victim and says things meant
to gain trust and confidence while enticing them away
from safe areas.
-During the rape, the rapist may demand to be
called a certain name to indicate victim
subservience(Sir, Master, Lord, etc.)
-The rapist may ask "Does it hurt?" or
"Did that hurt?"
-"Beg for more."
-Will call the victim demeaning, humiliating names
attesting to his view of their worthlessness (bitch,
slut., whore, etc.)
2. Sexual Behavior
-The rapist has an extensive collective of
pornography
-Sexually stimulated by the victims response to
the infliction of physical and emotional pain
-Rapes may be rehearsed in private and with
compliant victims (i.e.- wife or girlfriend)
-Sexual bondage apparatus and behaviors will be
involved
-Sexual experimentation on victim, including
biting, insertion of foreign objects in vagina or
anus, and the use of sexual torture devices
-Prefers anal sex followed in frequency by forced
fellatio
-Prefers ejaculation on specific parts of the
victims body
-Sexually selfish; the victims primary function is
to suffer, sexually
-THIS OFFENDER IS THE MOST LIKELY TO RECORD THE
RAPE FOR LATER FANTASIZATION (video, photos, journal,
audio, maps, calendars, diaries, media clippings)
-These "trophies" will be hidden in a
secret hiding place (home, office, vehicle, storage
space, etc.)
3. Physical Behavior
-Brutal level of force used
-Brutality inflicted against specific areas of the
victims body of sexual significance to the offender
(feet, nipples, anus, vagina, mouth, etc.)
-The intensity of specified sexual brutality will
increase with the rapist's anger, which increases
with the level of sexual arousal
B. MO Behavior[41]
-Rapist selects an occupation that allows him to act
as an authority figure which puts him in a position to
identify and acquire victims (impersonate law
enforcement, victim responds to classified ad, etc.)
-Rapes planned in exacting detail
-Rapes executing methodically
-Presents the image of a loving and sincere individual
-Assesses and chooses vulnerable victims for seduction
-Preference for adult victims
-Victims will likely be non-aggressive and have low
self-esteem
-Rape kit brought with him to the scene, containing
weapons, bindings, and any sexual apparatus
-Rape lasts for an extended period of time (majority
last more than 24 hours)
-Rapist is very prolific; high victim count
-Victim lured to an area which the rapist has complete
control over (his vehicle, basement, garage)
-THIS OFFENDER IS MORE LIKELY TO INCREASE AGGRESSION
WITH EACH SUCCESSIVE RAPE[22]
-Most likely to kill victims
Example:1, the practiced veneer[19]:
Portion from a diagnostic report made by clinicians after
eight hours of interviewing an Anger Excitation rapist who
has also killed a number of his victims:
"At his best, Eric impressed us as personable,
likable, and friendly. He was able to express affect
which ranged from warm humor to painful hurt freely,
openly, and appropriately. He demonstrated the ability to
describe people and situations clearly and to articulate
his feelings well. Although rapport was well established,
Eric appeared guarded and careful in the material he
related... He related in a rather passive - submissive
manner; he responded to our questions but asked few of
his own and made very few demands while here at the
center."
Example: 2, the sexual sadist[6]:
Background/ victimology from case study on sadistic (Anger
Excitation) rapist:
"On the occasion of his first rape, the
offender, Martin, was at an after-school party and
assaulted a 14-year old girl. When she refused his
advances, he choked her until she passed out. When she
regained consciousness, he was still lying beside her.
The commitment offense occurred one year later, when
Martin, age 19, killed a 30-year old woman by manual
strangulation. He had met the victim in a bar, and they
left together to go to a secluded area to engage in sex.
To what extent the decisions leading up to the rape were
mutual cannot be determined."
This rapist is perhaps the most individually complex. This
rapist is motivated strongly by intense, individually varying
fantasies that involve inflicting brutal levels of pain on
the victim solely for the rapists sexual pleasure. This
rapist's goal is total victim fear and submission. Sadism is
defined quite consistently in the literature as the
combination of aggression with sexuality[3], [5], [6], [9],
[19], [34]. This rapist has learned to eroticize physical
aggression. The result is that the victim must be physically
and psychologically abused and degraded for this rapist to
become sexually excited and subsequently gratified.
This rapist will also grow more confident over time, as
his egocentricity is the highest of any rapist type. He
believes himself brilliant and mentally superior to all
others, especially law enforcement[10]. He may even find ways
of exulting his success that can give indication of his
identity. Due to his perception of police incompetence, he
may learn not to plan as carefully as he otherwise might.
This could give investigators the false impression that he
wanted to be apprehended, which he will happily indulge.
The most alarming fact about the Anger Excitation rapist
is that he exhibits all of the behavioral indicators of a
sociopath (Hare[20]). This rapist considers the rules and
expectations of society inconvenient and unreasonable
impediments to the behavioral expression of his inclinations
and wishes. He is by his nature a good liar and a good judge
of people. He is also a master of impression management;
whatever he wants you to perceive of himself, you do. He also
has the ability to maintain complete control of his motives
and actions while succumbing to frenzied displays of
aggression. His behavior seems paradoxical and is nearly
unpredictable to those of us who have been successfully
socialized.
It is precisely for those reasons that this offender
presents the greatest danger to the potential victim
(Cleckley[7], [19], [34]). Anger Excitation rapists are able
to surmise the weakest and most vulnerable victims, and then
are further capable of luring those victims away to places
where they are in total control. Once the Anger Excitation
rapist has accomplished this, the victim is going to suffer
until he decides to end the rape. In some cases this means
releasing the victim, but in most cases this means escalating
to homicide. In the course of raping, this offender has no
compunction about escalating to homicide if he perceives it
necessary to protect his identity or achieve gratification.
This rapist preserves his identity with great skill,
however, because he is socially personable and lives his life
competently with little or no leakage as to his true sadistic
nature[19]. A study of criminal sexual sadists observed that
43% were married during the time of their offenses
(Dietz[10], [20]). This may keep him from becoming a suspect
well into any investigation.
V. Opportunistic
Method of attack: Any
A. Fantasy Behavior
1.Verbal/Script
-Verbally selfish
-Will control victim with threats
2. Sexual Behavior
-Sexually selfish
-Interested in immediate gratification
-Little or no fantasy behavior involved
-Victim is merely sexually convenient
-No paraphilic activity
3. Physical Behavior
-Minimal levels of force used
-Victim physical damage minimal
-Indifferent to the comfort or welfare of victims
B. MO Behavior
-Rape lasts a very short period of time
-Rape is committed hastily, lots of evidence left at
the scene
-Drugs or alcohol may be used by offender or used to
disable victim
-Victims can be strangers or known
-Rape is controlled by the context it occurs in
The primary motivation of this offender is to gratify his
need to have sex with the victim. This sexual motivation is
not based in any strong fantasy or predilection. He does not
set out to accomplish this rape and he does not prepare for
this rape in any great detail. During the course of the other
activities he engages in throughout the day, the opportunity
to rape someone occurs, and he seizes upon it. The context
controls the rape process, and although their is no
gratuitous use of force, the level of force is generally what
the rapist feels is necessary to maintain control. If the
victim is known to the rapist, the rapist will still rape
with little or no concern for the affect it will have on the
victim.
A number of these rapes occur during the commission of
another crime, often burglars who happen upon sleeping women
in the homes they burglarize. The crime scene of such a
rapist will contain all kinds of evidence. Again,
investigators may seize upon this and say, yes he left all of
this evidence, I even found a business card with his name on
it next to the condom he used that got lost in the victims
sheets; he must have wanted to be caught. In fact, this
rapist is merely sloppy, unprepared, and prey to the
carelessness which is the hallmark of an unplanned rape. It
is generally felt that these rapist suffer from extremely
poor impulse control.
In assessing the Opportunity rapist, remember to look for
any behavior that indicates preplanning such as evidence
victim surveillance, or the use of materials not found at the
crime scene that might suggest a rape kit. It is not uncommon
for investigators to mistakenly theorize that the violent
predatory rapist types are actually Opportunistic rapists,
and therefore less dangerous, because of a failure recognize
preplanning behavior.
One final note on the individuality of the fantasy motive:
it has been suggested several times in this work that
investigators should remain objective to the offender's point
of view. This means when reconstructing the fantasy motive,
consider the crime scene, the victim, the offender, and
subsequent behavior evidence in the light of the rapist's
fantasy. Not from the investigator's interpretation of
events, and not from the victim's interpretation of events.
View the behavior evidence through the eyes of the rapist.
His fantasy is not about what factually occurred, it is about
what he believes has occurred. What does the rapist believe
has occurred? What fantasy was he trying to create? Keeping
objective to that view, the fantasy motive will be much
clearer to the investigator, and his understanding of future
rapes will be increased.

INVESTIGATIVELY RELEVANT INFERENCES
There are three excellently detailed methods for
developing behavioral profiles from behavioral evidence that
has been collected and compiled about a serial rapist, his
crime scenes, and his victims. Those are found in Burgess et
al[5], Burgess et al[6], and most recently Holmes et al, 2nd
Edition[26] which contains a very important discussion about
forensic geography. They each have step by step analytical
models with flow charts and everything.
The purpose of this section is to discuss in specific
detail the types of investigatively relevant inferences that
can be made using behavior evidence, and that will comprise
the body of a behavioral profile. The term investigatively
relevant arises from the observance that some of the
inferences possible using profiling techniques have only
"gee whiz" value until a suspect is generated. This
section will therefore concentrate on those inferences which
directly relate to developing a unique suspect set from a
universal suspect set.
The inferences are listed below, each with an example of
how that particular inference can be made and an explanation
as to why it is investigatively significant. The broader
discussions about what can be learned from a behavioral
profile, from which some of these have been referenced, may
be found in Burgess et al[5], [6], Douglas[12], Douglas et
al[13], Geberth[15], [16], Ressler[37]. Please keep in mind
that inferences should be made in aggregate, in consideration
of each other, not each in a vacuum as though they exist
separately. If inferences about a rapist are not consistent,
the profiler should be prepared to explain why.
Physical Characteristics
The description of the rapist is an investigative staple.
It is grist for the sketch artist and then the media. It will
include information like age, height, weight, and hair color.
In the absence of witness testimony, which does occur with
living victims who never see their attacker, many behavioral
elements can be utilized to assess the rapist's physical
traits. Hair analysis of the victim's clothing can give you
potential hair colors, etc.
For this instance, assume that the rapists age is in
question. A behavioral indicator of age can be the control
exhibited during and attack. Younger rapists can tend to be
less controlled, less experienced, and less patient with
their rape behavior. If a rapist demonstrates extreme levels
of control over his own behavior at the crime scene, this may
infer an offender in the 30+ range.
This is significant because now investigators have a
better idea of who they are physically looking for.
Intelligence
Intelligence is defined as the capacity for learning,
reasoning, and understanding.
Behavioral indicators that infer an intelligent rapist
include such things as altering MO due to information learned
about an investigation in the media.
Example:
The papers print that the police have a rapist's
DNA from his sperm. The very next attack the lab reports
that the semen sample that was retrieved from the victim
has no sperm. However the signature and MO are the same.
Investigators may infer that this rapist has gone and
gotten himself a vasectomy to avoid DNA identification in
subsequent rapes. This is an example of learning, and
learning is part of being intelligent.
This is investigatively significant because from
intelligence, future behaviors can be inferred, responses to
mistakes made during attack's can be inferred, education may
be inferred, and occupation can be surmised in concert with
other inferences.
Education
An important but often ignored behavioral indicator of
education is language. This may not always be apparent to a
victim, but can be assessed more accurately when she is of
one socio-economic class, and the rapist is of another.
Example:
The latest victim in a series of rapes is from a
very low socioeconomic class. She has very poor grammar
and speech habits. The victim reports in her statement
that her attacker had good speech and smelled clean. She
also reported that he did not use any offensive language.
From these very few details, it can be inferred that this
rapist did not belong to that victim's socio-economic class.
His speech was different from hers so he didn't belong to
that immediate area. Due to his good speech, and the fact
that derogatory language tends to flow quite freely from many
less educated rapists, education may be inferred about this
rapist.
She also noted his clean smell, so it can be further
inferred that he wasn't using alcohol and is possibly a
non-smoker. Over time and offenses, these inferences may be
substantiated.
This inference is significant because it does begin to
landscape the type of occupation that this rapist may have.
It also gives rise to inferences about his residence in
relationship to the site of the rape.
Residence
Inferences about the rapist's residence in relationship to
the crime scene can be one of the most important
investigative inferences available through behavioral
profiling. It essentially asks the question of an offender,
"Do you live here, nearby, or are you a stranger to this
place? Does your interaction with the crime scene or even the
selection of the crime scene require special knowledge?"
Example:
A teenage victim has been attacked in the morning
on a secluded path that is rarely used by anyone. She was
attacked from behind, dragged into some bushes off the
path, bound and gagged with duct tape, and raped
repeatedly. Upon investigation, it is learned that this
path cannot be seen from nearby roads, and can only be
entered into from neighborhoods that lay on either side.
The path has a lake on one side, and a steep hill on the
other with no residences along it. Investigators also
learn that the victim had unexpectedly spent the night at
a friends house and generally does not use that path. In
essence, there was no way anyone could have planned for
her to be on than path because she had not planned it
herself and did not frequent it.
There are many good inferences possible from this small
amount of information. One of the most important is that
access to this path requires special information that only
inhabitants of the neighborhoods on either side of the path
might possess. Also important, only residences of either
neighborhood would have occasion to use the path
functionally. Functional use of the path is the only way the
rapist would have encountered this victim, as he could not
have preplanned to attack her there.
The relevant inference here is that this rapist lives or
works in one of the two neighborhoods on either side of the
path. He's not some stranger to the area who just bussed in
to commit a rape and then will buss back out when he's done.
So why did he have the duct tape?
Employment
When considering employment inferences, it is important to
reconcile them with inferences regarding intelligence and
education. Is this the kind of rapist who is very intelligent
but might have a menial occupation? If so, make sure to
explain why.
Example:
All of the victims in a series of rapes are younger
teenage girls walking to the same school through a
heavily wooded path between 7:30-8:00AM. The wooded path
brings them to a soccer field on the edge of school
property. Many students do this each morning. The rapists
MO includes attacking the victim from behind, using
verbal threats with no weapon present, and covering the
victims face. The victim never sees rapist. During the
latest attack, the rapist asks the victim about her
cheer-leading practice later that afternoon. The rapist
is described by all victims as being a larger, older man
who is quite strong.
Again, there are many inferences possible from the
information in the example. Regarding the rapist's
occupation, however, there are several that are key. First,
he has semi-special knowledge of the wooded path used by
students. Second, he always covers they eyes and never lets
them see him, indicating that they might have contact with
him at a later time. Third, he has specific knowledge about
the young girl's after school activity. It is inferable, from
all of this, that the rapist works at the school. It may be
inferable that this rapist is a teacher or administrator at
that school, perhaps involved with extra-curricular student
activities.
The relevant inferences from this particular example move
the rapist to a unique set of characteristics almost
immediately.
Hobbies and Interests
This area of inference is important because it will let
you know what this rapist does with his time when he is not
raping. It may infer involvement with clubs, organizations,
or require specialized equipment that can only be purchased
from particular area vendors.
Example:
All of the victims in a series of rapes are women
ages 20-35 living alone in different apartment complexes
throughout a city. The attacks all occur between the
hours of 1AM and 3AM, after they have gone to sleep. He
uses a short sword, ties them up with clothing he finds
at the scene, and wears a black mask. They also describe
him as wearing a black outfit making him look like a
ninja. Each of the victims further describes the rapist
as a strong, lean, muscular individual. He has the
particular habit of gagging his victims with a pair of
underwear from their own clothes-hamper, when available.
There is no sign of forced entry.
As with the other examples, there are many potential
inferences from this example. Relating to hobbies and
interests, however, particular attention should be paid to
the rapist's outfit and props. He apparently has a developed
interest in the martial arts. Likely he belongs to martial
arts clubs in the area, or practices in a gym or dojo. He
owns at least one sword, perhaps more. This, combined with
those people who had access to the apartment complexes,
begins to move this rapist into a unique set of
characteristics.
Location Selection
Location selection is one of those very Fantasy dependent
MO behaviors. It is dependent upon desired victim population,
subsequent availability, the rapist's knowledge of a given
area, and the rapist's own personal schedule. These elements
converge in one place at one time for an attack location to
be chosen.
Example:
All of the victims in a series of rapes are women
getting into their cars in the same shopping mall during
the day between 12:00AM and 1:00PM. They are generally
carrying a lot of packages, have parked their vehicles
some distance from entrances to the mall, and are raped
in their vehicles. The victims are generally beaten
without provocation by the rapist, and forced to perform
fellatio. The rapist is observed by several of the
victim's leaving on foot.
A primary location selection inference possible from this
example is observing the time the rapes occur. The offenses
all occur during the lunch hour, suggesting that the location
is a function of the rapist's schedule, possibly a work
schedule. That the rapist can leave on foot, without a
vehicle, suggests that he works nearby. This significant
because it helps narrow the suspect pool to men in the very
local population who take their lunch from 12 to 1.
Other behavior evidence will help narrow the suspect pool
further. As stated before, location is dependent on many
offender variables. If it can be established why a location
is chosen over another, and with consistency, then the motive
will be that much more apparent.
Victim Selection
The type of victims that a rapist selects are also very
Fantasy dependent MO behaviors. They are an expression of
what the rapist needs to make his fantasy real. If they have
common characteristics, this will tell investigators about
the particular requirements of the rapist's fantasy. If they
are not consistent with any characteristics, then this is
also significant to the rapists motive.
Example:
All of the victims of a series of rapes are young
girls age 13 to 15. They go to different private schools
throughout a metropolitan area. The MO is an attack on
the victim from behind as she is walking to school
between 8:30AM and 9:30AM, with a knife displayed to the
victim. The rapist removes them to a pre-selected hidden
area nearby. The rapist duct tapes his victims' mouths,
forces anal sex on them, followed by fellatio, and then
leaves, taking all of the victims' clothes with him. The
victims each walk the same route to school everyday. The
victims all wear plaid skirts and white blouses. The
victims all have the same general physical
characteristics.
The precise signature behavior of this rapist(pubescent,
attending private school, wearing specific clothing, of
specific physical characteristics) demands that he can only
predate certain locations. His MO must include surveillance,
and a great deal of other preplanning behaviors all
surrounding private catholic schools at a certain time during
the day.
Knowing this is investigatively significant in this
example because investigators will be able to establish
generally where the rapist will be, at what time, and with
which victims in mind to make his fantasy(his preferred
sexual behavior of choice) come true. This opens the door for
a great deal of pro-active investigative behavior in
relationship to future victims.
There are quite a great many other investigatively
significant inferences that can be from behavior evidence,
more than can be listed in this work. These are just some of
the major examples. They demonstrate the kind of thinking,
reasoning, and association that is the grist of behavioral
profiling. It is important, again, to keep in mind that these
inferences should not be made in a vacuum, and should be kept
consistent with each other. If they are not consistent over
time, there should be a plausible explanation for it(i.e.-
Rapist relocates, rapist goes to jail, rapist changes
occupations).

CONCLUSION
Behavioral profiling is one tool of many that can be
utilized to investigate a series of unsolved rapes when there
are no suspects, and no understood motive. The most important
part of behavioral profiling is recognition, collection, and
reconstruction of behavioral evidence. Linkage blindness can
prevent the collection of behavior evidence in early rapes.
To avoid linkage blindness, every rape investigation should
take the attitude that it is part of a series until it can be
otherwise established. Additionally, future linkage blindness
can be avoided by the formation of task forces to promote
information sharing and prevent jurisdictional conflicts.
In distinguishing behavior evidence that has been
recognized, it must be further determined which behaviors are
static(Fantasy Oriented signature behaviors) and which are
dynamic(MO Oriented learned behaviors). Also, the use of a
rapist typology can give the investigator a
psychological/behavioral snapshot of the rapist during a
given rape. This will all provide for linking future rapes to
the current series in absence of strong physical evidence. It
will also increase the investigator's understanding of the
rapist's motivation and potential future behavior.
Once all of these considerations have been tended to,
investigatively relevant inferences can be made about the
rapist from the behavior evidence and the suspect pool can be
narrowed from the universal set to the unique set.
Accomplishing this, investigative leads can be developed
where before there appeared to be none, and the investigation
is likely to stay the right track.

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