Sean Vincent Gillis: The "Pure Evil" Killer Who Mutilated His Victims

Did the Louisiana serial killer ever truly regret brutally murdering eight women?

Donald Henry Gaskins: The "Pee Wee" Killer

Always mocked for his size, Gaskins was intent on getting the last laugh.

How H. H. Holmes Became America's Most Prolific Serial Killer

Up to 200 victims may have died at his 1890's Chicago "Murder Castle."

The Brutal Case of BTK Serial Killer Dennis Rader

Bind, Torture, Kill: the mantra that haunted Kansas.

Inside John Wayne Gacy Jr.'s Real Life Murder House

Enter the basement of America's Killer Clown, one of the most notorious serial killers in history.

15 Notorious Female Serial Killers

The twisted tales of these female serial killers are downright chilling.

Rodney Alcala: The Dating Game Killer Who Appeared on a Gameshow in the Midst of His Murder Spree

Bachelor #1 was handsome and charming—but offstage he led a double life as a sadistic serial killer.

Meet the Three People Who Helped Catch Ted Bundy

Bundy's girlfriend Elizabeth Kloepfer, along with two rookie cops, helped take down the serial killer.

8 Twisted Confessions from Ted Bundy That Will Make Your Skin Crawl

These chilling Ted Bundy quotes will grant you access to the mind of one of America's most notorious serial killers.

10 Little-Known Facts About Jeffrey Dahmer

How well do you know the Milwaukee Cannibal?

11 Movies Inspired by Ed Gein’s Hideous Crimes

The killer's creepy crimes have led to a slew of villains based on Gein.

The Most Dangerous Animal: Is the Zodiac Killer the Next Cold Case to Be Solved?

Investigators hope that new technology will help find justice for the Zodiac's victims.