The first wife of an accomplished ?Jekyll and Hyde? surgeon mysteriously disappears. John Quiñones investigates.

An ex-principal who spent 33 years in prison for wife's murder fights to clear his name

Behind the glitz and glam of one of the sexiest shows in entertainment, an FBI investigation revealed Chippendales founder Steve Banerjee was the mastermind behind multiple murder-for-hire plots.

How Anna Sorokin, known as the "Soho Grifter," fascinated the world and conned elite social circles.

A millionaire, an ex-NFL player, and a mom become a deadly love triangle.

Diane Sawyer reunites with the children born right after 9/11, who lost their fathers in the attack, to discuss their strength and resilience.

David Muir Reporting: The 9/11 moment-by-moment stories of heroism & bravery.

Televangelists Jim and Tammy Faye Bakker's religious empire and the sex and financial fraud scandals that engulfed it. (OAD: 1/18/19)

When a woman is found unresponsive in her bathtub, two of her daughters suspect their father is responsible.

In 1989, the young actress Rebecca Schaeffer was shot to death by an obsessed fan who had stalked her.

Anna Nicole Smith's daughter visits the most influential places in her mother's life.

After "BTK" serial killer Dennis Rader's shocking confession, his daughter had to find ways to cope with her new, shattered reality. (OAD: 2/1/19)

Melanie McGuire insists she's innocent in husband's 2004 killing. Her trial captured the nation's attention after fishermen found her husband's legs in a suitcase. (OAD: 9/25/20)

A couple was preparing to sell their yacht to move closer to family when they vanished forever. (OAD: 1/17/20)

The chilling true crime story of a '85 Chicago Bears legend and the murder of his pregnant girlfriend.