No, he's going to cost the taxpayers a lot of money in a trial and many decades of housing at Club Fed.
When you say things like "If you're trying to shoot somebody and they laugh at you, you go again," admitting you fired "more shots than I needed to," and are proud of your "good clean finishing shot," you've crossed the line from self defense to murder.
His federal State Department pension will pay for that.
When a burglar breaks into your residence while you are home are you going to break out the tea and crumpets instead of the Glock???
I dunno, the thought of ending up facing a crazy bastard like that is at least one tiny factor in my decision not to break into random strangers' houses.
once again, government thwarts the powerful lessons we can learn from the misfortune of others...