The collectors: Serial sexual offenders who preserve evidence of their crimes

In our prior research, we have encountered a distinct category of serial, sexual offenders who invest themselves in developing unique collections of artifacts that link them to their victims. This behavior is counter-intuitive as it represents irrefutable proof of their responsibility for multiple serious crimes. Nonetheless, the process of collecting these artifacts and the experience of maintaining them together, and in proximity to the offender, appear to represent a psychological experience that is central to the motivation for perpetrating the crimes. In this paper, we explore five modalities of recording used singularly or in combination by some of the most prolific and egregious sexual offenders prosecuted in the past 40 years. We use these case studies as a platform for exploring the psychological dynamics underlying this behavior, and to further alert law enforcement and forensic evaluators to the existence and significance of these unique forms of crime evidence.     

Personality factors in relation to violent crimes

The personalities of a group of 54 persons (51 men and 3 women), imprisoned for the perpetration of violent crimes, were evaluated. The results were then compared to a normative group. This study considers personality factors and dimensions on three levels: (a) Basic factors: the "Big Five", (b) Personality disorders and clinical syndromes, (c) Personality dimensions related to personal wellbeing and social adaptation said to define a psychologically healthy individual. The results of the study show that it is not possible to define a basic personality profile for this group of violent delinquents based on the "Big Five" factors. It is, however, possible to find two habitual patterns of behaviour if the Millon Model (1990) is applied. These two behaviour patterns and attitudes towards life situations will be named "Dependent with compulsive traits" and "Psychopath tendencies". Both relate to indicators of mental health.     

Risk factors in violent and nonviolent offenders

Factors leading to risk for violence were evaluated in an offender population of 36 male offenders including 18 Violent, e.g., assault, threatening and 17 nonviolent (break and enter, theft), and 17 nonoffenders. Their scores on the Psychopathy Checklist Revised, Violence Risk Scale-Experimental Version 1, Minnesota Multiphasic Personality Inventory-168, and the Porteus Maze tests showed scores for the inmates with violent offenses were elevated on Psychopathic Deviate, Paranoia, Schizophrenia scales of the Minnesota Multiphasic Personality Inventory, violence risk of the Violence Risk Scale, showed psychopathic orientation on the Psychopathy Checklist Revised, and had a lower test age quotient score on the Porteus Maze test.     

Assessing violent offending in serious juvenile offenders

The convergent validity of the two most frequently used methods for assessing violent offending in juveniles (i.e., selfreports and arrests) was evaluated. Participants were 87 serious juvenile offenders and their maternal figures, primarily from disadvantaged families. Validation measures tapped established behavioral, family, and peer correlates of delinquency. Results failed to support the ability of either arrests for violent crimes or selfreported violent offenses to index violent criminal behavior accurately. Several methodological features of the study support our hypothesis that the findings were not spurious. Procedural and conceptual implications of the findings are discussed.The Family and Neighborhood Services Project was funded by Grant 2H87MH43557-04 to the South Carolina Department of Mental Health from the National Institute of Mental Health. The authors extend their most sincere appreciation to Commissioner Joseph Bevilacqua, Commissioner Richard McLawhorn, Joe James, Dale Chandler, Madeline Blackwell, Kristen Rowden, Pam King, Nancy King, Nancy Yue, and Jerry DeLoye.     

Psychological and sexual functioning among outpatient sexual offenders against children: A Minnesota Multiphasic Personality Inventory (MMPI) cluster analytic study

Multivariate clustering procedures were used to identify homogeneous subgroups of outpatient sex offenders against children (n=110)on the basis of the Minnesota Multiphasic Personality Inventory (MMPI). Results indicated a five-subgroup solution. Two within-normal-limits and two clinically elevated profile subgroups replicated subtypes found in previous cluster analytic studies of child sex offenders. The fifth subgroup appeared similar in MMPI profile pattern and elevation to a previously identified subtype of rapists. Discriminant analyses showed that subgroups differed along dimensions of cognitive disturbance and sexual functioning. Furthermore, levels of psychopathology corresponded with levels of sexual pathology. Results are discussed with reference to previous MMPI cluster analytic studies of sex offenders and theories of sexual aggression.Portions of this paper were presented at the meeting of the Midwestern Psychological Association, 1992, Chicago, Illinois.     

Perceptions of violent crimes in relation to sex of perpetrator

The purpose of the present study was to examine the relationship between criminal behavior and perceived sex of the perpetrator. Participants (26 men and 44 women) reviewed scenarios depicting an armed robbery and a child's murder. 98% of the respondents attributed the armed robbery to a man, whereas an equal number attributed the child's murder to both a man and a woman. The respondents also ascribed the man's behavior to internal characteristics, whereas the woman's criminal behavior was attributed to external situations or to mental illness. These findings are in accord with current sex stereotypes.     

Empirical clusters of DSM-III personality disorders in violent offenders

Violent male offenders in a maximum security hospital and special units in prisons (N = 164) were interviewed with the Structured Clinical Interview for DSM-III Axis II disorders (SCID-II). Cluster analysis of the personality disorder criteria sets identified six diagnostic patterns: (1) antisocial-narcissistic; (2) paranoid-antisocial; (3) borderline-antisocial-passive-aggressive; (4) borderline; (5) compulsive-borderline; and (6) schizoid. Offenders in the first three groups had more extensive criminal careers, and most were identified as psychopaths by the Psychopathy Checklist-Revised (PCL-R). These Groups also had more frequent lifetime histories of substance abuse. A history of affective and anxiety disorders was more common in Groups 3 and 5, and almost two thirds of Group 2 had a history of psychotic disorder. The results emphasize that dangerous offenders are heterogeneous in personality pathology. They also suggest that personality disorder among violent offenders is more commonly represented by recurring patterns of covarying traits than by single categorical entities proposed in the DSM classification.     

Psychotic perceptions of pet animals in defendants accused of violent crimes

Some defendants charged with aggressive crimes against people have a history of psychotic perceptions and delusions involving their pet animals. Careful history of this phenomenon can contribute towards better understanding of a defendant's state of mind at the time of the alleged offense. Three case examples are presented and discussed.     

Therapeutic change in adolescents sexual offenders

IntroductionA number of studies have shown that the treatment of adolescents who have engaged in sexually abusive behavior (AESABs) reduces their risk of sexual recidivism. However, few studies have examined the internal processes leading to these results.ObjectiveThe purpose of our research was to determine whether the treatment of AESABs (n = 43) influences the following factors related to sexual offending: deficient social skills, social isolation, ineffective coping strategies, and cognitive distortions. The impact of motivation for change and trauma symptoms on therapeutic progress was also examined.MethodPre/post-treatment analyses were completed.ResultsThe results of our pre/post-treatment analyses indicate significant changes in social isolation, coping strategies and cognitive distortions, and a significant reduction of trauma symptoms. Only social skills remained deficient. The data on motivation were not sufficient to establish whether motivation was linked to the progress of the subjects.DiscussionOur study highlights the importance of interventions targeting the acquisition of social skills in AESABs. Trauma is also an important factor to consider in the assessment of therapeutic progress, despite not being directly related to sexually abusive behaviour. The limits of the study highlight the importance of establishing an a priori program evaluation framework.     

Predicting recidivism in adolescent sexual offenders

The prediction of risk of sexual recidivism in adult sex offenders has been grounded on research identifying reliable markers or risk factors, the so-called static and dynamic variables. For adolescents such reliable factors in the prediction of risk of sexual recidivism have so far not been unequivocally revealed. The aim of this systematic review was to screen the available research literature for such factors. The results indicated that regarding static or historical risk variables some can be found repeatedly to be linked to sexual recidivism in adolescents such as previous offending and multiple or stranger victims. Considering dynamic variables there is much less documented evidence in the research literature possibly as a result of lack of adequate psychometric tools. Overall, regarding risk of sexual recidivism there continues to be a great need for research.     

Sentencing sex crimes against children: an empirical and policy analysis

This study investigated factors that contributed to the sentencing outcomes of 387 sex crimes against children who were prosecuted in a large East Coast city. Hypothesized variables that were indexed to predict sentencing included several offense, victim, and perpetrator characteristics. The findings revealed that individual victims' experiences are generally less predictive of sentencing outcomes than perpetrators' characteristics, that sentences generally tend to be lenient, that intra-family and stranger abuse seem to be taken equally seriously, and that the criminal justice system does seem to incarcerate those society is most worried about-persistent predators who abuse several children. The article ends with suggestions for further research and policy development.     

Gender differences in attitudes toward psychopathic sexual offenders

Although a considerable amount of research has been conducted examining the validity of psychopathy as a psychological construct, relatively few studies have focused on the effects of using this disorder in "real-world" settings to influence the attitudes of laypersons who are making life-altering decisions about offenders. This study attempted to replicate and extend earlier findings (Guy & Edens, 2003) suggesting that there are gender differences in the impact of expert testimony regarding psychopathy. A sample of 599 undergraduates reviewed case facts regarding a hypothetical Sexually Violent Predator trial in which the type of risk assessment testimony provided (clinical opinion, actuarial scale, psychopathy evaluation) and the age of the victims (adult versus child) were manipulated. Consistent with prior research, despite overall high rates of support for commitment in the adult victim condition, men were less prone than women to support civil commitment when the defendant was described as "a psychopath" (62.5 versus 86.5%). No such gender differences were noted in the clinical opinion or actuarial conditions. When the victims were identified as children, type of testimony had no impact because support for commitment was almost unilateral. Finally, ratings of how psychopathic the defendant was perceived to be (regardless of the testimony provided) were significantly associated with support for commitment across most conditions.     

Victimologic studies--a comparative study of perpetrator-victim relations in homicide crimes

Investigations into 404 homicide cases involving 422 perpetrators and 442 victims in the GDR are described as an introduction to a new subject, victimology , dealing with the importance of the relations between perpetrator and victim for the actual crime. Although certain uniform features are apparent, it is evident that relations between perpetrators and victims in the GDR differ considerably from those in other countries, especially in the case of countries with very high homicide rates.     

The inter-domain among personality and cognition variables in people who commit murder

The inter-domain among personality (MMPI) and cognition (intelligence) variables in a sample of 137 males charged with first degree or capital murder was examined through canonical analysis. Race was included as a control variable. Two significant canonical correlations were found which contribute to an understanding of the relationship between personality and cognition in violent people. These variates were identified as Problem-solving Focus and Introspective Self-focus. Results also suggest that these inter-domain variates explain the relationship between personality and cognition variables to a greater degree for black murderers than for white murderers.     

Sexual sadism in sexual offenders: An elusive diagnosis

The present review considers the various conceptual and operational definitions of sexual sadism as this has been diagnosed among sexual offenders. The most persistent problem this review identified concerns the criteria of the fusion of sexual arousal with one or more of the various features of the offenders' actions or of the victims' responses. Not only do the definitions of sadism vary considerably in what it is that is thought to provoke sexual arousal, the operationalization of these definitions also varies. Furthermore, none of the operational definitions appears to satisfactorily or reliably measure sadism. In face of these discouraging observations we recommend abandoning the present diagnostic criteria and shifting to a dimensional approach to defining sadism.     

Attitudes among adolescents in a Swedish city toward some sexual crimes

Using data from a representative sample of adolescents in grade ten in Uppsala, the fourth largest city in Sweden, attitudes toward a number of (criminal) sexual acts are studied. These data are contrasted with those from a sample of patients at a school gynecological clinic. It is found that for both samples, only a very limited number of the eight discussed acts are considered to be criminal by the adolescents. Although at least seven or eight acts are criminal in Swedish law, only two acts are considered criminal by about half of the respondents. These acts are pedophilia and rape after petting. The same questions were used by Kutchinsky in 1969 when on behalf of the U.S. Congress Commission on Obscenity and Pornography he studied inhabitants in Copenhagen, Denmark. When comparing data from Uppsala Sweden 1978 with data from Copenhagen, Denmark 1969 we find that Swedish adolescents in the late seventies, on the whole are much less likely to call the discussed acts criminal. The only exception is rape after petting, which in Copenhagen in the late sixties was the act least often seen as criminal but in the Uppsala study in the late seventies it was one of the two acts most often claimed to be criminal. Finally, the effects of coital experience and the effect of sexual knowledge on the percieved criminality of the acts are considered.