In this new edition of his landmark 1986 study, pioneering anthropologist Elliott Leyton examines the psyche and motivations of his six original multiple-murderer subjects and now takes stock of how far we've come since then in our understanding of why people commit gruesome assaults on innocent strangers. This case-study approachbased on years of immersion in the killers' diaries, confessions, psychiatric interviews, statements to the press, videotapes, and photographs led the way in defining serial and mass murders not as the acts of alien creatures with deranged minds but rather as...