The Son of Sam spread terror through the streets of New York, shooting women or couples parked in cars.
When Dennis Nilsen is arrested for murder in London, he calmly tells police he has killed at least 15 young men.
Richard Ramirez slept in cemeteries as a child before preying on citizens in their homes later in life.
Police search for the killer of female co-eds when body parts begin washing up on California beaches.
Seattle's Green River Killer baffled police for 19 years following the discovery of three women's bodies in 1982.
Police discover the private graveyard of a mass murderer who killed more than 100 people.
Albert DeSalvo, dubbed the Boston Strangler, admitted to 13 murders.
The crimes of Charles Starkweather, an American killer who murdered 11 people in the late 1950s during a road trip with his lover.
Known as the Vampire of Sacramento, Richard Trenton Chase slaughtered men, women and children in a bloody rampage that shook California.
The 'Highway Hooker', a female serial killer and prostitute sentenced to lethal injection for the killing of six men in Florida between 1989 and 1990.
The Back Pack Killer, Australia's worst solo serial killer.
Ten innocent people were killed, and three were wounded.
Myra Hindley became the most hated woman in Britain.
Jeffrey Dahmer was a sexual deviant who raped, murdered and ate parts of 17 victims.
Harold Shipman is estimated to have killed 275 people.
A seemingly ordinary man who also liked to maim, molest, and murder.