Put him on a ship and never allow him to step foot on land again. Let him roam the seas until he dies and then he can have a burial at sea. The man without a country. The man no one wants around. A man who would perforce be ISOLATED from ever harming anyone again. Time to think about the grave damage he did? What are you nuts? No. He will live out his days whinya**ing complaining lying denying attacking accusing insulting threatening! But no one will have to listen to it. A madman talking to the denizens of the ocean and skies.
How's about it?