Statistically speaking, the majority of mass murderers and serial killers in the U.S. are white/male. According to Fox and Levin (2012), the perpetrators of mass murder are more likely to be older, white and male than the perpetrators of other types of homicides. Hegemonic Masculinity and Mass Murderers in the United States | Christopher A.D. Charles - Academia.edu Similarly, serial killers are also predominantly white and male: http://www.sagepub.com/upm-data/5396_Fox_Final_Pages_Chapter_3.pdf (page 37) This study examines the possibility that the traditional of masculinity in the U.S. and a crisis of male identity plays a role in mass murders and serial killings by white males. Hegemonic Masculinity and Mass Murderers in the United States | Christopher A.D. Charles - Academia.edu I thought I'd post it and let people read it, and then maybe we could discuss it. It's an interesting read.