There is no real punishment for him.
His daddy pays all legal fees.
His daddy pays all civil monetary penalties.
His daddy gives him a harsh talk.
And he, like the privileged little silver-spoon kid that he is, gets off with nothing.
If he had been from an underprivileged background, he'd be punished much more harshly with nobody to temper all of the consequences.
He should have something that hurts, like being banned from all university events and from matriculation.