Peacock's "Devil in Disguise: John Wayne Gacy" stars Michael Chernus as the notorious serial killer, giving an in depth look at his crimes and victims.

Weekend Watch: Find out how a prolific serial killer was caught thanks to a journalist who helped bring him to justice.

Actress Jana Kramer discusses her role in the Lifetime movie "Kidnapped by a Killer: The Heather Robinson Story," based on a true abduction case.