From the looks of the shell and the amount of blood on it and how he's laying there I'd say he wasn't quite ready to hatch yet. I know how hard it is to just watch them and not help in their struggle to hatch, but that is part of what makes them strong enough to survive. I do not help a chick hatch just because 99.9% of the time there is a reason they were unable to hatch on their own and they end up dying or I have to cull them anyway.