NBC Dateline's recent episode, titled Deadly Obsession, was a harrowing case that spanned more than two decades.

As seen on the recent Dateline episode, it took three lengthy court trials, but each time, a jury found Dana Chandler guilty of the 2002 double murders of Mike Sisco and Karen Harkness, despite the la ...

To find out what happened to Mike and Karen, you can watch the full episode “Deadly Obsession,” available ... to this week’s episode of Talking Dateline with Andrea Canning and Keith ...

The new Dateline episode, Deadly Obsession, explores the complete investigation behind the murder of Karen Harkness and her fiance, Mike Sisco. The episode is set to be released on April 4 ...

A Kansas couple is found dead in 2002. A years-long search for the killer and three criminal trials over two decades reveal strained dynamics within one victim’s family. Andrea Canning reports ...

You can catch up with past Dateline episodes on Peacock right now, as well as every previously aired episode from Season 33. Most recently, in “Deadly Obsession,” which aired on April 4 ...

Dateline’s most recent episode, “Deadly Obsession,” reported on a 2002 double homicide. “Kansas couple Mike Sisco and Karen Harkness are found dead by their parents before a family fish ...