Tough one Kurt, hope it works out ok for this young man.
If it were me, I would follow Rancids advice. Pretending all is the same is not good, let the kid know he has a ear to listen or shoulder to cry on in your home. He may need a independent voice of reason once the shock subsides and everyone moves back on with life and things get lonely & quiet. I don't like how sometimes a death means don't speak of that person. I know it's awkward at first but almost every time smiles come from remembering something fun.
I have done it in similar sad situations, offered person in question the same as above. Then I give a great big hug and say I am here for you. Some stiffen up like a board, some you can just feel that they needed that. Most have taken me up on the offer to talk later.
I see sns2 has offered the hug therapy as well. Nothing better than a hug when you need it
