Watch Killer Performance

When Stacey Peterson goes missing, her husband Drew Peterson becomes the prime suspect.

When a law graduate went missing, classmate Stephen McDaniel appeared on the local news. But his TV appearance and his love of the limelight would prove to be his undoing.

Texas firefighter Robert Poynter was fatally shot; his wife blamed a random killer at the time.

A look at the case of supposed "family man" Chris Watts, who actually harbored a dark secret.

Ted Bundy was one of the world's most notorious serial killers. During the 1970s, he was accused of murdering at least thirty young women and girls but in court, he maintained his innocence. Underneath this façade of lies, the charismatic killer was a psychopath who inflicted brutal acts of violence on his victims. Taking a front row seat to analyze Bundy's behavior are three of the worlds' most experienced super sleuths who are trained in exposing the lies behind a serial killer's performance.

A look at the depraved case of 1970s serial killer John Wayne Gacy.