Mysterious death of Mississippi Black teen. Doctor's ex-wife allegedly plots his murder. Plus, geofencing.

In Mississippi, 18-year-old Black teen Nolan Wells was found dead after not returning home from a July 4th boat party on Horn Island. Prosecutors lay out their case against a Los Angeles businesswoman who has been charged with masterminding the murder of her husband, Dr. Hamid Mirshojae. In Dateline Round Up, a verdict in the trial of Larry Millete, accused …