They'd both probably still be alive, and not killed each other over something as dumb as road rage. "Keith Byrne was trying to do the right thing. After the Marine Corps veteran accidentally cut off another car, he was ready to apologize at the next light. Before he could, a passenger got out of the cut-off car and shot him square in the chest. The mortally wounded Byrne, 41, was also prepared to fight back. With his own gun, he fired two shots at 22-year-old Andre Sinclair, and Sinclair died of his injuries at the hospital two days later. Byrne died on scene." He wanted to apologize for cutting off another driver. It turned into a deadly shootout.