You can pay him all the money. It won't bring the dead back to life.
But, to me it DID look like the dog is about to attack the officers - it tried to catch the shooter by his arm.
Not sure about laws over there, but here, there are regulations which say that, if your dog is large enough or of specific agressive breeds, if he's out of your personal property (back yard, house, apartment), the dog MUST be on a leash at all times and must have that thing over it's mouth to prevent it from biting anybody.
Now there's another thing. Even if the dog didn't come out on his own to attack the police, they would've need to deal with him eventually, as they are arresting the man. Surely, you can't arrest somebody and leave their pets right there as they were out in the street?