Wow. That's as bad as sysadmin misbehavior gets. That poor man! I can't imagine getting jailed and left to rot for someone else's crimes. I feel bad when I catch myself watching client filenames scroll by in rsync.
His role as a sysadmin seems completely unrelated to this crime though?
It might be a reason he was caught: the reason the hospital got a detective to investigate him was probably because it was worried he might engage in ransomware or other security breaches against the hospital.