@spendius,
I don't know Spendius.. I hear you.
But, what comes around goes around doesn't just quite fit here for me...
Off course this "kid" is going to have all his mates, rally and make up a make-believe story. Off course, Sean is going to feel betrayed because he is in pain, inside and out, inside as it was his mate.
I would have the boy alone, speak to Sean alone (with parents there but not in hearing range) and see if they can internally heal some of this, that to me is more important than broken bones, I think.. If Sean is "hurting".. I'd like to think he is defending his future but that he, would be able to say sorry and mean it and advise such, and I am wondering if this was said, "man to man" that Sean would then feel 'ok' with what happened...
But, I am also pretty sure a "medical examiner" can establish whether stomping over and over, or falling on ones rist, created that break
If you know what I mean.....