That's so sad. That was a frequent occurrence at one place we lived in the country. The neighbors dog kept coming over and grabbing my hens. I talked to the neighbor and told him to keep the dog away from my home or I would shoot him. We were about 1/8 mile from this guy. The dog made it a point to keep coming back. The neighbor just said, do what you have to do. I used a rifle and put bird shot in it. I didn't want to kill the dog, but I wanted to keep him away. He grabbed a hen a few days later and I got a good shot in his rear. He dropped the hen and never came back. If your comfortable with something like that, it may work. I imagine it took him awhile to lick out all that buck shot.
As of 2019 that would be a federal crime in the United States. Anyone following this advice in the US will be committing a felony. This sub-forum seriously needs to sticky the 'Preventing Animal Cruelty and Torture Act'.