Profiling Killers: A Revised Classification Model for Understanding Sexual Murder

Abstract

Generally, murder classifications have failed to be useful for investigators in identifying perpetrators of murders. Based on the experience of the authors, this article extends the definitions of four previously recognized rape-offender typologies (power-assertive, power- reassurance, anger-retaliatory, and anger-excitation) into classifications for sexually oriented killers. These types of murderers and their crime scenes are described through the dynamics of their behaviors, homicidal patterns, and suspect profiles. Each typology is followed by an actual case example that fits that particular type of killer. By identifying crime scene and behavioral factors of these killers, the homicide investigator will be more equipped to process murder scenes, prioritize leads, and apprehend killers. Unlike earlier efforts at crime scene classification, the present work addresses the behaviors, motivational continuum, and the effects of experiential learning by the perpetrators. The relative frequency of the four types within a population of murderers at the Michigan State Penitentiary is revealed.

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