Two of the more ruthless female serial killers in history are profiled here. Jessica McCord was divorced from her first husband but grew jealous after he remarried. She would remarry a sheriff's deputy and they would go on to murder both her first husband and his new wife. Sharon Kinne was known as "La Pistolera" and bragged about "killing men" and getting away with it.
Jessica McCord couldn't handle not getting her way. When her long-suffering husband, Alan Bates, had finally had enough and divorced her, she used their children to punish and torment him.
Jessica married Jeff McCord, a police officer, but when she learned that Alan planned to marry Terra Klugh, she was furious. "Jeff," she told her husband, "we've got to do something. We've got to kill them." And so Jessica and Jeff began to plot the perfect murder.