Gary Ridgway, a.k.a. the Green River Killer, conducts a nineteen-year reign of terror in Washington, with forty-eight confirmed murders that earn him the title of the most prolific serial killer in the United States.
Serial killer Edmund Kemper claimed the lives of female students (earning the moniker of Co-ed Butcher) before finally targeting his abusive mother and confessing.
In mid-1980s California, Richard Ramírez, dubbed by the press as The Night Stalker, exhibited a viciousness that made him one of history's most savage serial murderers.
Scottish civil servant Dennis Nilsen wanted male companionship but couldn't deal with anyone's emotions but his own. Serial killing solved the problem.
