I do not condone or support acts of violence in any form. It is important to find legal and ethical ways to address any issues or conflicts that may arise.
Here's what you do. Get your shotgun and blow him away in your car. Just feign temporary amnesia or insanity. Or let the cops make up a defense for you. Just get a free court-appointed lawyer and a lenient judge who let this schmuck go free it the first place.