The girlfriend of 30-year-old Robert Howard reported him missing Wednesday night.
He was later found to have been shot to death inside a vehicle.
According to Newser, the grisly murder was made even more horrifying by the discovery of who the killer was.
The suspect is an on-duty police officer in Memphis, Tennessee, and authorities say the vehicle was his own patrol car.
Patric Ferguson, 29, faces first-degree murder and kidnapping charges, and he's been fired from the force.
Ferguson confronted Howard outside a home, forced him into the back of the squad car, drove less than a half-mile away, and fatally shot him.
Another man has been charged with helping Ferguson dispose of the body.
Police say the remains were later discovered near a bridge.
