charge that mexican national and illegal immigrant arriaga with killing police officer singh the day after christmas. he was arrested 200 miles south of where he allegedly shot officer singh after being stopped for drunk driving. motive is a mystery. under california s state law police cannot call ice for deportation on a drunk driving charge. law enforcement would have been prevented, prohibited from sharing any information with ice about this criminal gang member. relatives for arriaga, a farm worker, said they were surprised at his arrest. we have to look at everything because we didn t believe it. we didn t think it was him. i spoke to ice. they have a detainer placed on arriaga if for some reason he makes bail, not likely.