The Dorsey house, 6042 Romaine Ave. Usually so quiet, but not today. The dog just barked and barked, and no one came out to walk him. A neighbor finally called the police, who were maybe already wondering why 67-year-old William Dorsey, employee of their traffic division, hadn’t come in to work. Inside they found the reasons: 65-year-old Bernadine, shot through the back of the head as she sat knitting in the front room; William slumped on the divan; the revolver where it fell. Colleagues told the usual tale of longtime ill health and general despondency. One hopes they found a home for the dog.