I disagree with your opinion that this man deserves jail for defending his home.
That, and I think you're a troll.
Lets see. The guy didn't live there. He didn't even know his family were staying with relatives. He has a history of violent assault with a knife and burglary. He manages to stab the burglar 12 times in the back. It sounds like a violent assault, not defending property.
Probably would have done the same to any man found in the house, ex-wife's boyfriend, locksmith.
We'll see on sentencing if the Judge reckons the Jury messed up he'll get a suspended sentence.