The case of Bart and Krista Halderson, whose son Chandler reported them missing after years of lies began to unravel.

The story of Corpsewood Manor, where Charles Scudder and Joey Odom were murdered in rural Georgia in 1982.

Faith Hedgepeth was killed in 2012. Fourteen years later, the murder trial is underway. Here is what to know about the case.

The Greenbrier Ghost case, from Zona Heaster Shue’s 1897 death to the exhumation and trial that made West Virginia history.

Joleen Cummings vanished after a Florida salon shift. The investigation led detectives to a coworker with 18 aliases.

Explore Sandra Birchmore's case, from the Police Explorers program to the federal trial of former Stoughton officer Matthew Farwell.

A Texas couple found human graves under their Newport backyard. We follow the Black Hope Cemetery case, haunting accounts, and legal fight.

Patricia Bennett's family kept receiving texts from her phone after she disappeared. Her grandson's concern led police to the truth.

Ashley Flynn was fatally shot inside her Tipp City, Ohio, home while her two daughters slept nearby. Her husband, Caleb Flynn, reported an intruder had broken into their home, but investigators later alleged the scene had been staged.

Attorney Steven Cozzi disappeared from his Largo law office in 2023. Former plastic surgeon Tomasz Kosowski is currently on trial for Steven's alleged murder and has pleaded not guilty.

Aliza Sherman was killed outside her Cleveland attorney's office. We examine the case against Gregory Moore, who has pleaded not guilty.

Austin Kanuch was killed in his Houston area home in 2023. Surveillance shows a mountain bike rider, but the case remains unsolved.

Judge Kevin Mullins was killed in his Kentucky chambers. Video shows former Sheriff Shawn Stines, but no audio reveals a motive.

At least 75 women were strangled or smothered in Chicago between 2001 and 2017. We tell the stories of the women, the unsolved cases, and the ongoing search for answers.

Alex Pennig was found shot in her St. Paul apartment in 2022. Matthew Ecker claimed suicide, but was convicted of murder.

In 2007, 14-year-old Andrew Gosden left Doncaster for London without telling his family. He was last seen leaving King’s Cross Station alone.

Dateline NBC’s The Man Who Loved Christmas examines the death of Harold “Peanut” Allen, the burglary that revealed a poisoning plot, and the 50-year sentence for Ashley Jones.

Holly Bartlett was found beneath Halifax's MacKay Bridge in 2010. Her death was ruled accidental, but questions about her final seven hours remain.

Vincent and Margaret Sherry were murdered in Biloxi, Mississippi in 1987. The case led to the Dixie Mafia and a betrayal by Vincent's own law partner. The murders remain technically unsolved.

D.B. Cooper hijacked a plane in 1971, collected $200,000, and was never found. We cover the full story and the string of copycat hijackers who tried to pull off the same heist.