A CALL TO ARMS Seattle Police Lieutenant Nick Rodriguez is worried about a growing number of domestic violence calls where the accused is a gun hoarder. Worried enough that he gives Mac Davis a call one morning at 2 a.m. to the house where a man just shot his wife and two children. Mac Davis, a local cop reporter and former Marine who might qualify as a gun hoarder himself, doesn't like 2 a.m. calls to crime scenes. He especially...