Serial KillersAre you a white male with better-than-average intelligence? Were you the eldest son? Is there a history of alcoholism in your family? As a teenager, did you have a serious problem with compulsive masturbation, chronic lying, arson, enuresis, and animal cruelty? Then you have a pretty good chance of winding up on death row.
According to the FBI Behavioral Science Unit, a serial killer is distinguished by murdering 3+ victims in 3+ locations with an emotional cooling-off period in between. This last criterion is to differentiate from spree killers, who get carried away and burn themselves out.