Dateline: Secrets Uncovered - Season 9 - Eps 27: A Killing in Cottonwood
Karen and Mark Duenas had a special marriage. Teenage sweethearts, the couple managed to keep the romance alive even after raising five boys together. Then a perfectly ordinary night ended in murder, a tragedy that would test the bonds of family.
About Dateline: Secrets Uncovered

Title: Dateline: Secrets Uncovered
First Air Date: 2017-07-21
Last Air Date: 2025-03-12
Status: Returning Series
Rating: 8.1/10 (from 12 votes)
Language: EN
Seasons: 14
Total Episodes: 342
Network: Oxygen
Genres: Crime, Documentary
Production Companies: Unknown
Synopsis
For more than 25 years, Dateline has brought viewers investigations into some of biggest mysteries in America. This entry in the franchise takes a second look at some of the most mysterious cases of recent history. It explores the stories through firsthand accounts told by people who are close to the crime, including investigators who dedicated their time to the cases and family members who are still trying to confront the tragedies that befell their loved ones.