About
25
Publications
6,873
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240
Citations
Introduction
Current institution
Additional affiliations
August 2022 - July 2023
Position
- Postdoctoral Research Scholar
Description
- Postdoctoral researcher for the Prison Violence Consortium Project.
Education
September 2017 - March 2022
Simon Fraser University
Field of study
- Criminology
September 2015 - March 2017
Simon Fraser University
Field of study
- Criminology
Publications
Publications (25)
The phenomenon of "senseless" or "motiveless" homicide refers to homicides that lack an objective external motivation. Despite the unique challenges these homicides pose to police, few empirical studies have been conducted on the topic and existing studies are limited to clinical studies using small samples. To overcome existing empirical shortcomi...
Criminal expertise relates to the notion that some individuals may develop domain-specific offending skills that differentiate them from those with less skills or experience (i.e., novices). In the expertise literature, burglary has emerged as a distinct type of “expert” offense, therefore the current study sought to determine whether criminal expe...
Since the popularization of the Psychopathy Checklist‐Revised (PCL‐R), research on the construct of psychopathy has drastically increased. However, there has been little research examining the extent to which psychopathy varies across different cultures. This study is the first to use latent profile analysis to examine cultural variations in psycho...
This study explores the offender, victim, and environmental characteristics that significantly influence the number of days a sexual homicide victim remains undiscovered. Utilizing a sample of 269 cases from the Homicide Investigation Tracking System database an in‐depth analysis was conducted to unveil the factors contributing to the delay in the...
Prison misconduct can produce a range of detrimental consequences across prison systems. Research indicates that both individual- and prison-level characteristics predict misconduct; however, there is increasing evidence that this relationship can be mediated by program participation. Accordingly, this study seeks to expand knowledge on the relatio...
Individuals who commit sexual offenses against children have been shown to be distinctive from adult offenders across both individual and crime characteristics. However, an examination of the literature shows that there are gaps in the research related to whether sadism manifests differently between those who target child compared to adult victims....
Individuals who commit sexual offenses against children have been shown to be distinctive from adult offenders across both individual and crime characteristics. However, an examination of the literature shows that there are gaps in the research related to whether sadism manifests differently between those who target child compared to adult victims....
Background
Although sadistic child sexual abuse (SCSA) is rare, existing typologies of child sexual abuse have identified the existence of sadistic subtypes in child molestation, as well in the sexual homicide of children. Nonetheless, no study has sought to determine whether there is heterogeneity in the manifestation of sexual sadism between sadi...
Purpose
Serial offenders have been described as more forensically aware, better able to control their victim, and ultimately, more adept at eluding detection. Despite these assertions, there is a lack of research examining differences in “criminal expertise” (i.e. offense-related skills and competencies) between serial and non-serial offenders. The...
The phenomenon of “senseless” or “motiveless” homicide
refers to homicides that lack an objective external motivation.
Despite the unique challenges these homicides pose
to police, few empirical studies have been conducted on the
topic and are limited to clinical studies
using small samples. To overcome existing empirical
shortcomings, the current...
Although there has been considerable variation in the application of expertise to offending populations, one aspect that is widely agreed upon is that expertise is best represented on a continuum from novice to expert. The present study, therefore, investigated criminal expertise in 877 hybrid offenses that involve sexual assault and robbery (i.e.,...
Past studies on criminal expertise showed that some sexual offenders possess skills related to avoiding detection. An important question that remains unaddressed in the literature, however, is whether unsolved cases can be used as a “proxy” for expertise. The present study sought to provide the first empirical examination of criminal expertise in a...
Motiveless homicides are usually defined as homicides in which a victim is killed by an offender and a motive was not determined by the police investigation. Motiveless does not mean that the police do not know the motive for the homicide, but rather that no other motive could accurately and objectively explain the reason for why the homicide occur...
In a sample of 480 university students, we examined associations between self-ratings of psychopathic traits, made using the Comprehensive Assessment of Psychopathic Personality (CAPP; Cooke et al. 2012), the Psychopathic Personality Inventory: Short Form (PPI: SF; Lilienfeld and Hess 2001), and self-ratings of the structure of their core social ne...
Although past studies demonstrated the heterogeneity of the criminal career patterns of juveniles with sexual offenses (JSOs), such studies did not directly assess whether JSOs have different adult offending outcomes compared with juvenile nonsex offenders. Using data on a subsample of males from the Incarcerated Serious and Violent Young Offender...
Purpose: Despite the importance of understanding factors related to solving sexual crimes, there have been very few studies conducted on the topic. Further, these studies tend to focus on homicides exclusively and often neglect the fact that offenders may adopt certain behaviors that increase their chances of avoiding detection (i.e., investigative...
There is a lack of research examining the relationship between body recovery times and the “first 48,” despite the risk of forensic evidence deteriorating and the difficulty in forming leads without a body. The study explores factors influencing body recovery—both during and after the critical 48-hr investigative window—in sexual homicide cases. Of...
Purpose: Victim age polymorphism (also referred to as victim age crossover) describes sexual offenders who offend against multiple age groups. The present study examined whether polymorphic offenders could be differentiated from age-specific offenders based on the role of opportunity in the commission of their offenses.
Methods: The current study e...
Purpose – The purpose of this paper is to investigate whether it is possible to identify different types of
sadistic offenders within a sample of sexual homicide offenders (SHOs).
Design/methodology/approach – The study addresses this research question through the use of
two-step hierarchal cluster analysis and binary logistic regression utilizing...
Sadistic offenders are often described as individuals who are forensically aware, who carefully plan their offenses, and preselect the location of their crime. Despite this emphasis on strategies to avoid police detection, no study has specifically examined whether this behavior or trait was specific to sadistic offenders. Utilizing a sample of 350...
Slide set from 2014 symposium on pedophilia and hebephilia at the annual meeting of the Association for the Treatment of Sexual Abusers (ATSA), San Diego, CA.
Criminal history narrative studies reveal an escalation in sexual offender behaviour from non-contact to contact offending, with an ever-increasing likelihood of sexual violence and homicide. In particular, researchers have found that sexual offenders often have a history of committing burglaries prior to contact offences. Accordingly, researchers...
