The dog needs to be sent to a sanctuary where he will be kept away from children and anyone he could harm. Then he needs to be rehabilitated and accessed again after a long period of rehabilitation. Perhaps he should stay in a sanctuary the rest of his life if he can't be made safe to live in an indoor home with responsible people. The dog should not be adopted out to just any home because that would be far too dangerous. I have 3 pit bulls and they all love kids and any child could take a bone away from them with no problem. They have never tried to bite anyone. I feel so bad for the little boy who was chewed up by the dog. He never should have been allowed around a chained dog. When my son was young, he was attacked by a neighbor's German shepherd and the dog ripped his leg open down to the bone. He had to have 2 layers of stitches to close the wound and had to take antibiotics and he still has a scar. To this day, he is afraid of German shepherds even my own who is a gentle girl (but 90 pounds and looks like a wolf).