Homicide Illustrated Across the Ages: Graphic Depictions of Victim and Offender Age, Sex, and Relationship

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Abstract
Objective: A total of 34 years of FBI Supplementary Homicide Reports were examined using statistical graphics to illustrate patterns across ages, by sex, and victim/offender relationships (intimate partner [IP], other family, acquaintance, or stranger). Method: An innovative fourfold display and victim/sex-specific scatterplots with overlaid deviation ellipses determine the age/sex patterns for each relationship. Results: We illustrate numerous acquaintance killings among young men and improve our understanding of predictors by sex, relationship, and circumstances in mid/later life. Male victims of strangers are either older with young male offenders or vice versa. Female acquaintance and stranger homicides are rare. Within families, older male parents are killed by adult offspring, but rarely by IP. The majority of elder femicide is perpetrated by IP or other family. Discussion: U.S. murder rates are rising, and we found children from 6 to 12 years were least likely to die by homicide. Elder femicide risk from IP and other kin indicated danger from within the home.

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