Nancy, can you describe your run set up? What kind of wire? How tall is the fence? How big is it? is it covered over the top? Is the wire buried under the ground? is the ground of the run covered with wire? It sounds like you have multiple predator issues. Again, i'd suggest that you go to the predator threads. There are some sites there that describe how different predators complete their attacks and what the ensuing damage looks like. Until you know what your predator is, you won't be able to prevent reoccurrence. Weasels often decapitate, raptors often eat the breast, possums often eat through the vent, coons often eat the crop, foxes often leave no trace.. and then there's rats, coyotes, bears, snakes. And the list goes on. Everybody likes chicken.