
"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.

A doctor ingests a lethal chemical, causing friends to wonder if it was an attempt at suicide or if he was poisoned -- until a love triangle is uncovered.

Rocky Mountain National Park rangers question whether a woman's fatal fall was an accident or the result of an act of violence.

A matriarch's death leads to a prominent family from Texas being torn apart by decades of betrayal, greed and mistrust.

Twenty-seven-year-old Egypt Covington is found murdered in her home; investigators in Michigan quickly identify a person of interest but years pass without an arrest.