3x04: The Co-ed Butcher
3x03: The Son of Sam
3x01: The Night Stalker
2x06: The Boston Strangler
2x05: Charles Starkweather
2x04: Aileen Wuornos
2x03: The Killer Clown
2x02: Vampire of Sacramento
1x05: Ivan Milat
1x04: Harold Shipman
1x03: The Washington Sniper
1x02: Myra Hindley