A Manhattan parking garage attendant who was shot twice while confronting an alleged thief — then wrestled the gun away and opened fire on the suspect — has been charged with attempted murder, police and sources said. The overnight worker, identified by cops as Moussa Diarra, 57, was also hit with assault and criminal possession of a weapon charge in the Saturday incident, which unfolded around 5:30 a.m. as the attendant saw a man peering into cars on the second floor of the West 31st Street garage, the sources said. Believing the man was stealing, the attendant brought him outside...