What Would You Do?

A married couple goes missing over a holiday weekend; a social media clue leads to a shocking discovery.

The woman who pled guilty to one of the most elaborate hoaxes ever now shares a different version of her story; her ex-husband speaks out after he and the world were conned. Airdate: 05/23/2025.

A mother's unrelenting crusade to find justice after her 21-year-old daughter is fatally stabbed in the hallway outside her apartment.

Music, a bicycle and rose petals are clues to catch the killer of a South Carolina mom. Airdate: 05/02/2025

When a $30 million lottery winner vanishes under mysterious circumstances, police begin an investigation and there is no shortage of suspects. Air date: 04/18/2025.

An A-list celebrity hairstylist is found brutally murdered at his home. What begins as a suspected burglary slowly unravels into something far more personal. Air date: 04/11/2025.

A deadly family drama involving an inheritance, a mother lost at sea and never-before-heard revelations about the shocking search and rescue mystery. Air date: 04/04/2025.

The death of a Texas minister’s wife left a church community shocked and her family convinced it was foul play. Air date: 03/21/2025.

Two women shot while asleep in their home – one miraculously survives to tell her story. Air date: 03/14/2025.

David Muir investigates how cutting-edge forensic DNA technology has led to long-awaited justice in two murder cases that remained unsolved for decades.

A woman falls to her death while hiking in the Rocky Mountains. Was it a tragic accident or a deadly crime?

A new interview with Gabby Petito’s parents reveals what we haven’t heard before about the case.

The investigation into a multimillion-dollar con in a close-knit community helps investigators uncover the murder of a young father.

When an insurance agent is murdered in his office, evidence points to a secret relationship — until new DNA technology helps authorities find the real killer.

A loving husband is found murdered in his home. Weeks later, his wife receives a chilling death threat on her doorstep. Investigators are left to unravel a web of dark secrets dating back decades.

A loving father is killed when his car explodes. Could a fresh look at DNA change the case? Air date: 01/24/2025.

The discovery of a backyard burial leads police to a killer’s arrest.

A college teen vanishes while home on winter break. Will messages on his social media help his family’s personal search?

JonBenét Ramsey's father speaks to ABC News: what he thinks police can do right now to identify her killer. Can new technology solve this crime?

Officers race to find a kidnapped woman, not knowing that saving her would lead to the capture of a serial killer. Air Date: 11/22/24

Days after a mysterious person is seen lurking outside his home, a young father is killed after dropping his son at preschool.

A local firefighter hero is gunned down in his own driveway. Is the killer someone close to home?

A woman is found dead near a cemetery after a Halloween party. Air Date: 11/01/2024.

The deadly delivery that shook Atlanta and the clues investigators pieced together to bring justice.

The latest on the Erik and Lyle Menendez case, the brothers who killed their parents in Beverly Hills, and never-before-seen excerpts from Barbara Walters' "20/20" interview with the brothers.

A love triangle that ended with the murder of a mom of two. Air Date: 10/11/2024.

One of the most sensational true crime stories. A brutal murder in Los Angeles and a shocking twist nobody could have ever imagined. Air Date: 10/04/2024.

A 24-year-old woman vanishes; a stranger has a prophetic vision; police find a key that unlocks everything. Air Date: 09/27/2024.

An investigation into an Alaskan doctor's death reveals a secret romance, theft of nearly half a million dollars of property from his home and a suspect with a motive to kill.