The three-decade legal career of a former federal prosecutor, Marine Corps Reserve investigator and one-time candidate for Georgia attorney general has turned into a nightmare.

James R. “Jim” Harper III stands accused in Cobb County of racketeering and theft from his former client, Smyrna-based international gun maker Glock Inc., owned by Gaston Glock, the steely Austrian who once fought off a hit man with his bare hands and developed and marketed what is now a favorite sidearm for law enforcement and military personnel.