Raynella and Ed Dossett were a power couple in Tennessee where Ed was the Knox County District Attorney General. But at the age of 43, Ed was diagnosed with terminal cancer and then died in a freak accident on the family farm. Six months later, Raynella married David Leath, the local barber and Ed's best friend. Then in 2003, David died from a gunshot to his head. Raynella alleged David died by suicide by prosecutors suspected she may have been responsible for his death. “48 Hours" correspondent Erin Moriarty reports. This classic "48 Hours" episode last aired on 7/14/2018. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.