Serial killers are some of the most puzzling people of all time. There are many different types of serial killers out there, but the most puzzling of all are the serial killer couples. These are men and women that share in the macabre actions of taking human life. Sometimes one is dominant while the other helps out under direction, and sometimes they both share in the killing of innocents happily. Regardless, serial killer couples are among the most disturbing killers in history.




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