Three months after Gun Appreciation Day resulted in several accidental shootings, another gun-advocating event has been marred by gun violence. On Saturday, it was reported that a man died from gun shot wounds suffered at NASCAR's NRA 500 race at Texas Motor Speedway. Late Sunday afternoon, medical investigators ruled the shooting a "self-inflicted injury," saying the man shot himself in his head.

Fort Worth police said the incident occurred shortly after the man, 42-year-old Kirk Franklin of Saginaw, Texas, engaged in an argument with other campers at the event. There were several witnesses to the incident, but no other injuries were reported. Police also said that alcohol may have been a factor.

(via Deadspin/USA Today/Image via AP]