A former NFL player and his wife are murdered in Texas and the shocking evidence in their son's third murder trial.

Commemorating the entertainment company's 100th anniversary with never-before-heard stories behind the stories, star-studded interviews and a look inside Disney's newest attraction.

The murder of a beloved mom sparks an international manhunt; police uncover clues in an accused killer's diary.

When multiple women are murdered in Texas, police hunt for a serial killer – but is he closer than they think?

Reporting on a verdict in the case of a beloved law professor's gruesome murder.

After a young couple is murdered, their true identities lead to a shocking twist about their missing baby.

A young woman's mysterious disappearance and the search-and-rescue operation that led police to a barn full of dark secrets.

After a woman vanishes, police uncover her husband's dark past.

When a boy is kidnapped riding a bike, parents, police and a blogger work to bring him home.

"20/20" co-anchor David Muir is in Israel with the latest on the war between Israel and Hamas.

An inmate and corrections officer vanish. Was it a kidnapping – or a forbidden romance?

The stunning case of an illicit affair, manipulation and murder.

The actor, director and producer opens up about intimate details of her life, including her childhood, career, marriage, and a family secret that turned her world upside down.

A 12-year-old is kidnapped during a sleepover with her friends; authorities launch a cutting-edge investigation to find her.

After a teen vanishes, her family searches for answers but police see a suspect closer to home.

The dramatic twists and turns in the more than decadelong investigation into the Gilgo Beach murders.

The notorious disappearance of Kristin Smart, whose killer was finally brought to justice after a decades-long investigation.

The notorious disappearance of Kristin Smart, whose killer was finally brought to justice after a decades-long investigation.

A twisted couple's bizarre marriage pact, and how one of them was brought to justice by a small-town police chief.

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

Survivors of Uruguayan Air Force Flight 571 recount how they fought to stay alive while stranded in the Andes Mountains 50 years ago.

The courageous journeys of families and survivors following the tragedy at an elementary school in Uvalde, Texas.

A serial killer works as an FBI informant while concealing horrific crimes.

A love triangle involving a divorced mother and two wealthy doctors ends in a successful murder-for-hire plot.

A clown murders a Florida mom, leading to a 30-year journey to solve the case.

As environmental crises cause a Las Vegas reservoir to recede, a trail of bodies from decades past is revealed.

A devout husband goes from victim to murder suspect; how a wife's secret recording changes everything.

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

A college student, Lauren McCluskey, is murdered after being stalked. Did the University fail to protect her?

How a North Dakota love triangle ended with murder and a house in flame.

A man wakes up to find his fiancée dead; a shocking confession changes everything.

Breaking coverage and exclusive analysis after a jury found former South Carolina attorney Alex Murdaugh guilty of murdering his wife and son.

An Instagram model's relationship with an older man turns deadly, and a witness provides a shocking account of the fatal day.

After a mother and daughter are murdered, investigators encounter a self-proclaimed vampire and taunting letters from a killer.

Affairs. Antifreeze. A letter from the grave. What really happened to Julie Jensen?

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

Did a mom found dead in a luxury apartment slip and fall, or was it something more sinister?

A hockey player, a brutal murder and a shocking witness – the victim's young daughter.

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

The investigation into a Texas murder reveals the killer may have been watching all along.

ABC News shares personal tributes celebrating the trailblazing life and career of newswoman Barbara Walters after her death at age 93.