CAMPBELL, Calif. (AP) - Seven weeks after a motorist intentionally killed a gaggle of ducks at a car wash, police say the case is going cold."We're reaching a dead end in the investigation," Campbell police Capt. Russ Patterson said Saturday An Aug. 5 surveillance videotape showed a man driving up and intentionally heading for the ducks, crushing several with his car. The driver mows down several more ducks before jumping out of his car and killing some with his hands. The attack went on for 16 minutes. Ten ducks were killed. Police received 50 to 75 calls a day in...