Serial Killer in Coppia
- Adolfo de Jesús Constanzo e Sara Aldrete
- Angelo Anthony Buono, Jr. e Kenneth Alessio Bianchi
- David Birnie e Catherine Birnie
- Elvino Gargiulo e Mario Gargiulo
- Gerald Armond Gallego e Charlene Adelle Williams
- Gwendolyn Gail Graham e Catherine May Wood
- Henry Lee Lucas e Ottis Elwood Toole
- John Francis Duffy e David Mulcahy
- Josephn Kallinger e Michael Kallinger
- Leonard Lake e Charles Chi-Tat Ng
- Moors murders
- Paul Kenneth Bernardo e Karla Homolka
- Sweeney Todd e Margery Lovett
- William Burke e William Hare