Serial Killers

"I beat her to death, raped her, and loved it. Yes, I’m sick but I enjoy myself, too," serial killer Keith Hunter Jesperson wrote in one chilling bathroom wall message.

Here's how murderers like "The Giggling Granny" and "The Barbie and Ken Killers" got their names.

Before Oxygen’s “Snapped Notorious: The Happy Face Killer," premieres, learn about the case and the loosely related Smiley Face Killer.

While many of the most notorious serial killers have been based on the West Coast, there are many who made the Southern part of the United States their hunting grounds.

Could a serial killer terrorizing a southern community turn out to be one of its most well-liked members?

A former French military police officer identified only as 59-year-old Francois V. allegedly admitted to being "The Pockmarked Killer,” who left a trail of murders and rapes in the 1980s and '90s.

A 15-year-old kidnap survivor's escape led police to a serial killer: Richard Evonitz. 

In the late 1970s in California, a pair of notorious serial killers, Lawrence Bittaker and Roy Norris, preyed on young women and documented the attacks.

Serial killer Lawrence Bittaker, the subject of the upcoming Oxygen special "The Toolbox Killer," used a white van to abduct his victims.

When Kara Robinson was just 15 years old, she was kidnapped by a serial killer. Against all odds, she survived.