Medical examiner ambushed Bomb, barbed wire, acid used in attack on Smith By Yolanda Jones yojones@gomemphis.com June 3, 2002 An attacker ambushed Shelby County Medical Examiner Dr. O. C. Smith Saturday night, wrapped him from head to toe in barbed wire and strapped a bomb to his body. Police said Smith left his office at about 10 and was headed to the parking lot when someone threw an acid-like substance in his face to subdue him. For nearly three hours, he was unable to move or shout for help because of the barbed wire in his mouth. A security guard...