Sexual Sadism in the Context of Rape and Sexual Homicide

Abstract

This study investigates the convergent and predictive validity of behavioral crime scene indicators of sexual sadism in the context of rape and sexual homicide. The study is based on a sample of 268 adult males sentenced to a federal penitentiary in Canada. Information regarding crime scene behaviors was gathered from police records, a clinical interview with a psychologist, and a semistructured interview with the offender. A series of logistic regressions were performed to determine whether behavioral crime scene indicators of sexual sadism were associated with an official diagnosis of sexual sadism and were able to distinguish between sexual aggressors against women and sexual murderers. Findings suggest that several crime scene behaviors overlap with an official diagnosis of sexual sadism as well as being able to distinguish between sexual aggressors of women and sexual murderers. Importantly, the majority of crime scene behaviors associated with a clinical diagnosis of sexual sadism are not the same as those associated with sexual homicide.

Sadism in sexual offenders: Evidence for dimensionality.

“…Furthermore, Yates, Hucker, and Kingston (2008; see also Healey, Lussier, & Beauregard, 2013) posited that various types of behavior assoeiated with sexual sadism would generally become apparent in the way in which a sexually sadistic offender committed his crime. A list of 18 pertinent types of behavior was developed by Marshall, Kennedy, Yates, and Serran (2002; see also Marshall & Hueker, 2006) following a survey among 15 forensicpsychiatric experts in the area.…”

The Impact of Persistent Deviant Sexual Interests and Persistent Low Self-Esteem on Sexual Homicide

“…Specifically, we included whether the offender humiliated his victim (52.0%-yes, n = 119), whether the offender premeditated his crime (60.7%-yes, n = 139), whether the offender selected his victim (24.5%-yes, n = 56), whether the offender targeted stranger victim (20.1%-yes, n = 46), and whether the offender used a weapon during the offense (52.4%-yes, n = 120). Humiliation was used as a key indicator of sexually sadistic behavior because Healey et al (2013) and Healey et al (2014) found that this variable was strongly associated with both a clinical diagnosis of sexual sadism as defined by the Diagnostic and Statistical Manual of Mental Disorders (5th ed. ; American Psychiatric Association, 2013) and sexual homicide.…”

Serial Murder and Sexual Sadism

“…Şu anda cinsel sadizmin varlığını değerlendirmek için en sık kullanılan klinik araç Mental Bozuklukların Tanısal ve Sayım-sal El Kitabı (DSM IV-TR)'dır (37). Buna göre, cinsel sadizm şu öl-çütleri gerektirir (38):…”

“…Çeşitli olay yeri davranışlarının %50'ye yakın oranda DSM cinsel sadizm tanısını doğruladığı (37) ve parafilik bozuklukları yansıttı-ğı gösterilmiştir (42).…”

“…Bu kişilerde cinsel uyarılmaya neden olan özellikler şöyle tanımlanmıştır: 1) Şiddet ve küçük düşürücü davranış 2) Kurbanın bu davranışa tepkisi 3) Uygulanan şiddet sonucu hissedilen güç ve kontrol Şiddet cinsel uyarılma için yeterli değildir. Önceden tasarlanmış küçük düşürücü davranışlar ve kesme, parçalama bulguları cinsel sadizm açısından anahtar bulgulardır (37). Bu cinayetlerde olayı dikkatlice planlama, kurbanı aşağılama, bağlama, bandajlama, bedenini kesme, parçalama, baskı uygulama, kişi üzerinde kontrol kurma, işkence davranışları dikkati çeker (46).…”