It seems obvious that anyone who willfully and repeatedly commits murder is a psychopath: remorseless, egotistical, manipulative, and cruel. Think of Ted Bundy, Dennis Rader, or John Wayne Gacy.
According to author Kevin Dutton, psychopaths have a distinct set of personality characteristics. Pictured is Anthony Perkins as Norman Bates in Psycho. Photo by: Mary Evans / UNIVERSAL PICTURES / ...
The idea that one percent of the human population are psychopaths is both intriguing and unsettling. If true, it means that for every 100 people you pass on the street, one of them might have a ...