I had the same problem with a neighbor. I went over and talked with him and at first he denied it even though I told him I had a pic of his dog doing it. I said, politely "Well if its not your dog, I guess its a wild animal so I'll be setting out fur trapper traps which will definitely break bones or mame whatever is doing it so I hope your right. He quickly reconsidered and said he would make sure his dog was retrained. It was all good for about a 7-8 months but I had to go over and let him know that the dog is back at it and the tracks in the snow prove it. He was apologetic and said he would take care of it again. I believe him and he has been nothing but nice about it. I think you should give the owner the opportunity to make it right and if he doesnt, then you can consider other means. Its not the dogs fault really, he just needs to go. Its up to the owner to be responsible for his animal. Address is the right way and give him a chance first.