When a University of Illinois scholar goes missing, a suspect's girlfriend works with the FBI to go under cover and secretly record a conversation that ultimately cracks the case.

Mary Jo Buttafuoco, Joey Buttafuoco and their daughter Jessie reflect on their lives following Mary Jo's shooting in 1992.

A man is convicted of killing his 8-month-pregnant wife; a tip points to another suspect.

Payton Leutner speaks out for the first time after her two friends stabbed her 19 times and left her for dead in the woods of Waukesha, Wis., to prove themselves to a fictitious character known as "Slender Man."

Actress and Playboy Playmate Dorothy Stratten's life and promising career are cut short when her estranged husband kills her before killing himself.

When a woman secretly records her husband's affair, she snaps and kills his girlfriend and herself.

A woman convicted of killing her husband claims she was blacked out during the murder that she says occurred during a home invasion.

"Dateline" has been a staple of the newsmagazine genre since premiering in 1992. Given how long it's been on the air, the show has an extensive archive of in-depth news stories and investigative journalism. This syndicated version offers viewers another chance to watch some of the show's previous content, serving up real-life mysteries and in-depth investigations from the show's 20-plus years on the air. Cases involving murders and missing people are frequent topics on the series that has won multiple Emmys in the news and documentary category.

Anchored by Lester Holt, "Dateline" is NBC's signature newsmagazine, bringing viewers storytelling at its best by putting the pieces together to present the full picture of real-life events. NBC News correspondents cover compelling stories and issues of the day, ranging from mystery and crime to in-depth investigations and breaking-news events.

The oldest and most-watched newsmagazine on television gets the real story on America's most prevalent issues. CBS News correspondents contribute segments to each hourlong episode. Topics range from hard news coverage to politics, lifestyle, pop culture, business, health, and science. The correspondents and contributors include Sharyn Alfonsi, Anderson Cooper, Steve Kroft, Lara Logan, Norah O'Donnell, Scott Pelley, Charlie Rose, Lesley Stahl, Jon Wertheim, Oprah Winfrey and Bill Whitaker.