Geez...it's always someone else's fault, never the owner is it? Officer's don't carry tranquilizer guns and sounds like they tried to use non-lethal first before the dog was shot. The owner wasn't born yesterday and should have known if his dog ever got loose what the outcome could be. The owner failed plain and simple. Hole in the fence? What about the dog owner's fence? It isn't your neigbor's responsibility to keep your dog on your property. You are responsible to ensure your dog does not escape from your property.