A new episode of “Dateline” NBC will air on Friday, March 21. In Friday’s new episode, “the unexplained death of a beloved chiropractor becomes a criminal investigation when authorities discover she’d ...

HUNTSVILLE, Ala. (TENNESSEE VALLEY LIVING) - True crime. Mystery. Real-life drama. Suspense. All of these descriptions can be used to describe what ‘Dateline NBC’ has embodied over the decades. Now, ...