The kid probably didn't have a magic ring that really worked like we all think. But it DID make him invisible to the other kids at school by getting him out of there.
He and his parents should consider themselves lucky. If all it was, was a suspension, they're lucky or blessed. Get him to a good school. Better yet, home school. If there are CPS-like threats, send him to relatives or friends out of State, and then move as fast as you can.
These days, any kid not in school is lucky. but this doesn't mean to ignore teaching him/her. Rather, teach him/her well without all the BS that schools force on you these days.