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Piquerism in Overkill Homicides: Identifying the Sexual Component in a Series of ‘Ripper’ Killings

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Abstract

Piquerism, the sexual gratification yielded from the infliction of cutting, stabbing, and slicing wounds, remains an under-researched sexual paraphilic disorder with consequences for understanding, identification, detection, case linkage, and offender treatment. To help remedy that research deficit, a detailed case analysis is presented of a series of ‘ripper’ homicides to demonstrate common crime scene indicators and characteristics of piquerism. A case in which victims displayed overkill injuries has been chosen owing to the difficulty, even for seasoned investigators, to identify piquerism when the crime scene immediately suggests anger rather than a sexual motivation. In so doing, the knowledge base regarding this rare paraphilic disorder is expanded and directions for future research are noted.

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References

Cases Cited

  • People v. Prince, 57 Cal. Rptr. 3d 543

  • R. v. Coonan (formerly Sutcliffe) [2011] MHLR 55; [2011] EWCA Crim 5

  • State v Russell 125 Wn.2d 24 (1994)

  • State of Louisiana v. Nathaniel Robert CODE, Jr. No. 91-KA-0998

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Correspondence to Mark Pettigrew.

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Pettigrew, M. Piquerism in Overkill Homicides: Identifying the Sexual Component in a Series of ‘Ripper’ Killings. J Police Crim Psych 38, 342–352 (2023). https://doi.org/10.1007/s11896-022-09510-0

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  • DOI: https://doi.org/10.1007/s11896-022-09510-0

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