To anyone trying to defend this clown, saying 11 years in prison is justified, just stop. This dude is a f**king un-evolved ape that is unfit for society. People like him should be put down old-yeller style.
I'm not gonna condone it, but if I were OP in this situation, I would make sure this animal's 11 years in prison would be his last. Failure of the justice system means its time to take matters into your own hands.