If the Judge reckons Mr Hastings has had a poor deal he'll give a suspended sentence. But on the face of it I still reckon the Brits have a win/win situation here. One dead burglar and another one on the way to jail.
The burglary and "causing actual bodily harm" seem to be real crimes. However, if I were by magic transported, as I now sit, to Britain, I too would probably be in trouble for carrying a knife. I still don't see this as a legitimate case of manslaughter.