Well that's sad news. I always hate seeing animals being abused or maltreated. They don't deserve that kind of heinous treatment. I think we could stop this by disliking their youtube post. As many dislike as possible.
In our own way as pet owners, we must keep our pets within our backyard so that no sick or mean person can harm them. Give your pet the right nutrition and also the right grooming. Never HIT your pets.