Update:
My dogs leg had to be amputated. He made it through the first night and received another blood transfusion the following day. Tragically.... he later suffered what looked like to be a seizure and possibly a stroke. Despite the vets efforts, I had to make the heartbreaking decision to let him go.
With the help of a local security company were able to identify the owner of the pit bull. Due to negligence and poor living conditions, law enforcement with the helps of the spca removed the dog from their custody. I have filed charges against the owner, who will be held responsible for the veterinary expenses.