Since the first recorded U.S. case of mass murder in 1949, massacres have been increasing each decade, with workplace violence taking the lead as the most commo

Public mass killings are becoming more common. Though the chances of being harmed or killed in a mass shooting are slim, each incident affects the public's sens

Can you predict killing sprees? What do mass killers have in common? Why do so many of them write manifestos online and what do these tell us? These are some of

There are many cultural myths about serial killers, often propagated even by mental health professionals. Many assume there is a profile of a serial killer, tha

Ten years after the school massacre at Columbine High School in Colorado, school shootings are a new and alarming epidemic. While sociologists have attributed t