Ohio cop wearing Confederate flag under his uniform when he gunned down Sam DuBose
This July 29, 2015 booking photo provided by the Hamilton County Justice Center in Cincinnati, Ohio shows University of Cincinnati police officer Ray Tensing (AFP Photo/)

A former University of Cincinnati police officer was wearing a Confederate flag T-shirt under his uniform when he shot and killed an unarmed black man.

Ray Tensing was charged with murder in the July 19, 2015, shooting death of Samuel DuBose during a traffic stop.

The former officer claims he shot DuBose in self-defense after the man tried to drag him with his vehicle to flee the traffic stop.

But Hamilton County, Ohio, prosecutors showed a frame-by-frame breakdown of body camera evidence that shows Tensing fired his weapon point-blank before the car moved.

Prosecutors introduced the Confederate flag souvenir T-shirt, which read "Smoky Mountains 1934," that Tensing was wearing under his uniform, into evidence Friday morning.