I will be the first to admit I have no guilt about putting an aggressive or destructive dog down. If you don't want to lose your dog keep it in your yard or on a leash. Torture and mutilation is a whole different thing. The sheriffs dept here seemed to think something gang related when they found the lab all torn up. Small kids and livestock mean I don't want unknown animals with sharp teeth on my property. I have no idea why people must have animals, mostly dogs with no intention or plan for containing them. I have had multiple neighbors chase their dogs around my yard while I herd the kids in the house and try to keep the dog away from my livestock without shooting it.
Neighbor across the street lets his two more or less run wild at times. If I had a suppressor there would be none. Few weeks ago I was coming out the door in the morning, had an AR in the case to go shooting at lunch time. One of his comes around the corner barking, growling, showing teeth at me, on my turf. Mag in, rack and roll. Dumb*** across the street is sitting on his porch watching it all go down. When that bolt slammed forward I know he heard it, started hollering and called his dog over.