While all serial killers have their own signature way of committing their crimes, they mostly have one thing in common: They usually act alone.
But on occasion, they kill with their significant other. Like Paul Bernardo and Karla Homolka, the couple who murdered three women — including her little sister.
The tales of Gwendolyn Graham and Catherine May Wood are chilling, as they killed five elderly women while working as aides in a nursing home in the '80s.
And Fred and Rosemary West also worked together to torture and kill young girls he'd pick up from bus stops, along with two of their own children.
Murdering is messed-up in general, and it's even worse to kill as a pair. So naturally, we want to talk about it. Which serial killer couple makes you the most uneasy?
