California authorities have sought businessman Norman Hsu for 15 years. Since 2004, he has carved out a place of honor raising cash for such candidates as Hillary Rodham Clinton. For the last 15 years, California authorities have been trying to figure out what happened to a businessman named Norman Hsu, who pleaded no contest to grand theft, agreed to serve up to three years in prison and then seemed to vanish. "He is a fugitive," Ronald Smetana, who handled the case for the state attorney general, said in an interview. "Do you know where he is?" Hsu, it seems, has...