20 odd years in mental hospital...(lol)
How long before he gets up to speed on all the latest in timer and bomb making?

I give him an hour of tik-tok before he's ready for afresh, modern, Jihad again.

https://www.youtube.com/watch?v=ZgdufzXvjqw

https://www.dailymail.co.uk/news/article-15075591/judge-wishes-bombings-mastermind-best-7-7-walk-free.html