If he actually goes to the Supermax, then it will be good for him. He will be locked up for 23 hours in isolation
All you get in a Supermax is a tiny cell where all the furniture is made of unmovable concrete and a polished metal plate embedded into the wall to act as a mirror. The exercise yard is also tiny with very high walls that prevent you glimpsing the sun, and you only use it alone.
Living every day for the rest of your life in those conditions could be a fate worse than death.
Wow. That sounds like hell.
I am guessing the only way to keep sane is to (if allowed) exchange mail with a few people.
Keep in touch with real people, before the imaginary people show up....