That would be a quick death. At this point it appears he is destined for a slow and painful death.
Yup. He'll start getting sores in his mouth and have trouble swallowing, hair falling out, etc. Then he'll sue the government because they failed to prevent him from going there unprotected. Oh wait, that happens in America, not Japan. So he'll use a knife to slice his belly open. Idiots can happen in any country, the Japanese don't coddle them.