The mayor of Bell Gardens, California, was shot and killed by his wife during an apparent domestic dispute Tuesday, officials said. Daniel Crespo, 45, and his wife, Levette, were arguing Tuesday afternoon when their 19-year-old son intervened, the Los Angeles County Sheriff's Department said. The father and the son began physically fighting, and the wife got a handgun and shot Crespo in the upper body several times, the department said.