Integrating the Literature on Lethal Violence: A Comparison of Mass Murder,Homicide,and Homicide-Suicide

Abstract

Although mass murder is traditionally examined as a separate construct from homicide generally, few studies have explored their similarities and differences. This study compares the incident, victim, and offender characteristics of: (1) mass murderers and homicide offenders; and (2) mass murder-suicide offenders and homicide-suicide perpetrators. Mass murderers are more likely to be male; commit suicide; kill young, white, and female victims; use firearms; co-offend; operate in public places; and kill as part of drug trafficking and/or gang warfare. The analysis demonstrates that mass murderers are distinct from both homicide and homicide-suicide perpetrators, and represent a unique type of violent offender.

Keywords

mass murder homicide-suicide mental illness data merging

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