A Salem woman is grieving the loss of her pet dog after a pit bull bit it's head and shook it. Owner Belinda Joye had let her small dog out into the unfenced backyard as she stood nearby around 9:20 pm Wednesday night .   While the dog was a short distance away, a pit bull ran into the backyard and bit the small dog by its head and began shaking it. As of this morning, the person who owns the pit bull had not come forward. "Because the dog had no tags, there's absolutely no way I can hold anyone responsible, unless they come forward and says that they own it.” Officers who responded went door to door throughout the neighbor trying to locate the owner of the pit bull, but no one was familiar with the dog.