Crime Exposé With Nancy O'Dell

Randy Baker's "heart attack" was a murder plot by his wife and sister for life insurance.

Nurse Tina Tournai-Sandoval vanished; 22 years later her ex-husband was found guilty of her murder.

Wendy Ralston and her son Peyton were murdered and buried by her ex-boyfriend.

Sherry Ziessler's husband claimed a shooting by a stranger, but home security showed he was the killer.

Cyclist Moriah Wilson was shot by Kaitlin Armstrong, jealous over her boyfriend Colin Strickland.

Amanda Plasse was stabbed; a bloody shoeprint and note led police to killer Dennis Rosa Roman.

Travis Sieber's dating life drew many suspects before police found his killer.

Julie Ann Gonzalez vanished; police suspect she was murdered in a planned deception.

Jessica Nelson was murdered by a rejected suitor posing her death as a robbery.

Murder of Genai Coleman: A DNA sample from the victim's car leads police to her killer, but it's not who they expected.

Murder of Donasia Holloway: A Snapchat video Donasia filmed of her own murder helps police identify her killer.

Murder of Barbara Sheppard: A custody battle turns deadly when Barbara's ex murders her in revenge.

Murder of Clark Calquhoun: A missing man case becomes a homicide after investigators uncover the horrific truth.

Murder of Dr. Teresa Sievers: Clues at the scene reveal a sinister murder plot against the beloved doctor.

Murder of April Millsap: A man murders 14-year-old April after she rejects his advances on a bike trail.

Murder of Pam Hutchinson: A tourist's killing sparks a nationwide manhunt for her ruthless killer.

Murder of Joseph and Jossline Roland: A fake car ad lures the Rolands to their deaths in a double shooting.

Murder of Lynn Hernan: An apparent overdose is revealed as a staged killing by a thieving friend.

Murder of Camisha Hollis: Her children's account and surveillance footage link her disappearance to her boyfriend.