Joe Bryan, a former principal in Clifton, Texas, was convicted of murdering his wife Mickey Bryan in 1985, a crime he maintains he didn't commit. Was it connected to another murder in the small town?

The first wife of a “Jekyll and Hyde” Manhattan plastic surgeon mysteriously disappears. More than 30 years later, Robert Bierenbaum confesses to her murder.

Why the Petito case went viral and the outcry for the same attention to be applied to the cold cases of others, especially people of color and indigenous women.

Before serial killer Keith Hunter Jesperson, known by his nickname "Happy Face Killer," turned himself in in 1995, authorities believed Laverne Pavlinac and her boyfriend murdered his first victim.

Julie Rea was in prison for her 10-year-old son's murder until a "20/20" viewer helped crack open the case, leading to a serial killer confessing to the crime. One of his attack survivors speaks out.

13 children were held captive by their parents in a survival story like you’ve never seen. Now, hear from the family for the first time.

Friends and family of Armaud Arbery reflect on his life and his mother's quest to find truth and justice, after he was tragically killed; documenting the aftermath of Arbery's killing, featuring interviews with the attorneys involved in the case;

A look into the events leading up to the deadly shooting on the set of "Rust" and the pending investigations into what when wrong;

After a woman was found dead, authorities uncovered an elaborate web of lies surrounding James Addie, spun to conceal his biggest secret of all – he was living a double life.

A new “20/20” documents the latest details in the developing story on the Murdaugh family murders, the alleged financial crimes of Alex Murdaugh and other unusual events surrounding the family.

Lori Vallow’s brother Adam Cox sits down for the first TV network interview about the tragic family events that led up to the murders of his sister’s two children.

For over 26 years, authorities tried to locate Jodi Huisentruit, a 27-year-old anchorwoman who vanished in Mason City, Iowa. Now “20/20” explores surprising new leads in the case.

Michigan mother of three Sharee Miller sat in the center of a complicated love triangle. She used sex, deception and the internet to pit her lover, Jerry Cassaday against her husband Bruce Miller.

An exclusive prison interview with Diane Staudte, the mother behind a sinister plot to poison her husband and two children.

ABC News reports on the latest chapter in the downfall of Elizabeth Holmes and her blood-testing company Theranos, once valued at $9 billion.

Diane Sawyer decodes the mysteries behind the Heaven’s Gate cult, including an exclusive interview with Rio DiAngelo, a member who left the group.

Two months after his death, a new “20/20” reports on Robert Durst, the fugitive multimillionaire New York real estate heir and his shocking trial that led to a murder conviction.

The first network interview with Wendi Mae Davidson from prison, where she is serving a 25-year sentence for her husband’s murder.

For the first time in 20 years, Haylei Jordan speaks out to “20/20” and reveals insight into her mother’s troubled past, including her allegedly volatile relationship with Larry McNabney.

Can text messages sent from miles away lead to time behind bars? “20/20” reports on the unprecedented suicide texting case that landed Michelle Carter in prison.

Anthony Harris speaks with ABC News’ 20/20 more than 20 years after he was released from prison for a crime he didn’t commit, the murder of his neighbor Devan Dunvier. Her killer is still wanted.

Never-before-broadcast video gives insight into the mind of serial killer Henry Louis Wallace, who confessed to 11 murders from 1990-1994, and his only surviving victim speaks in his first interview.

A couple is murdered inside their home. Could the killer be trying to hide a secret double life?

An exclusive interview with Laura Day, nearly a decade after her first-degree capital murder conviction for her 6-year-old stepson’s death.

Two go on safari, one returns; an exclusive interview with a man who says he heard a shocking confession.