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Thirty years after she had learned that she was switched at birth, Kimberly Mays reveals the details about her tough childhood and her struggle with her identity; interviews with Kimberly's biological siblings, and her mother, Regina Twigg;

After a popular local musician is found dead, covert police surveillance uncovers horrific murders in Colorado and exposes a killer.

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.

Daniel Wozniak was a community theater actor in California when he was arrested for the murders of Sam Herr, a war veteran, and Julie Kibuishi, a college student and dancer, in May 2010.

New details are revealed in the case of a missing Colorado mom who secretly ran an expensive escort business.

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.

For three decades, Leo Schofield has been serving life in prison since his wife’s brutal stabbing. The “20/20” season 45 premiere poses the question: is Leo in prison for the crime of another man?

A mysterious drug overdose kills new mom Christina Harris. Would she leave behind a crucial clue that actually points to a killer?

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.

An open marriage, a secret affair, and a sinister plot for murder.

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.

Police launch a 38-day nationwide manhunt to find a 15-year-old Tennessee student taken by her teacher.

A special edition of "20/20" looks into the shootings in Georgia and the rise in hate crimes against the Asian American Pacific Islander community.

New details about the case of 17-year-old Brittanee Drexel, whose disappearance while on spring break stumped police for years.

Was it a case of self-defense or murder after a mom of two shot and killed her partner?

The investigation of the Gilgo Beach murders, featuring interviews with family members of the victims and key players in the case - including Suffolk County Police Commissioner Rodney Harrison and Suffolk County Defense Attorney Ray Tierney.

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A woman's seemingly obsessive and threatening messages to an ex precede a stunning twist.

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.

Video evidence leads police to learn the shocking identity of a former Arkansas senator’s killer.

An exclusive interview with a ‘fake doctor’ who hid a deadly secret.

The latest reporting on the investigation, exclusive interviews and chilling new details in the Idaho case.

Vegas gunman's motivation remains a mystery weeks after deadly attack; Conspiracy theories emerge in Las Vegas shooting; Vegas shooting survivors say they still have nightmares, trouble sleeping.

A family exclusively discusses their seemingly perfect husband and father's deadly secret.