Bet that punk ass doesn't talk any more crap after he comes back from his suspension.
This country was founded on violence, we have the death penalty, eye for an eye. Does the crime does the time, zero tolerance is BS. Each situation has to be evaluated on it's merits. Not enough information.
He still needs to talk to the kid and find out what exactly caused his kid to punch the other kid in the face. If the kid can't take "normal" verbal banter, then get him help, life is gonna be rough. If the other kid was being a bully, relentless, or was warned, then maybe nothing at home.
Gringo