If I were the father of this kid I'd really make him regret being suspended for this. First, both he and his little friends would be forced to sit through some uber-chickflicks at the movies. We're talking REAL hankie shredders like; "Serenity" or "Starship Troopers" or maybe even "Eight-legged Freaks". After that they'd have lunch at the local Hooter's. Maybe then there'd be some time spent at the local gun range. Then I'd top it all off with a party for all his friends & classmates, having them end no later than four in the morning.
And for the next several months, everytime he and I encountered any male friends or relatives of mine I'd be sure to recite his misdeeds in excruciatingly exact detail. Followed up by a smack between the shoulders as I loudly tell the world, "THAT'S MY BOY".
By God, I'd make that little juvenile delinquent pay! You bet!