A siege at a Southern California bank ended Thursday when police shot and wounded a gunman who was holding the manager hostage. The bank manager was rescued without injury, the Los Angeles Times reported. Investigators were unsure late Thursday whether the man entered the Sachan Bank in Buena Park to rob it or took the manager hostage for personal reasons. Both are of Korean descent. The suspect was shot at about 11 a.m. PST when he left the building to pick up something police had brought and left outside for him. He was being treated Thursday night at the trauma center at the University of California at Irvine. Sgt. Bill Kohanek described the gunman as uncooperative with police negotiators and said he sounded \"like a very angry person.\" But he said the man did allow customers and bank employees other than the manager to leave when police requested it.