Former BART officer accused of assault on $ 3 million bail . Richard Mehserle charged with murder of Brandon Grant ##ham . CNN 's Jackie Castillo contributed to this report . Mehserle may have intended to use knife instead of gun , attorney says .
Former BART officer accused of assault on $ 3 million bail . Richard Mehserle charged with murder of Brandon Grant ##ham . Mehserle may have intended to use knife instead of gun , attorney says .