To find out what happened to Mike and Karen, you can watch the full episode “Deadly Obsession,” available now on Peacock . You can also watch on the NBC app or listen to the full story on our podcast ...

In a chilling episode of Dateline: Secrets Uncovered called "Promise to Gloria," the case of 14-year-old Gloria Pointer is at the forefront. She was an outstanding eighth-grader from Cleveland, Ohio, ...

On Friday’s “Dateline,” Andrea Canning explores the double homicide case of Mike Sisco and Karen Harkness in Topeka, Kansas, ...