That is utterly tragic.
Please be good to "Paul", and do not expect him to "get over it" anytime soon. It doesn't work like that in my experience.
If he and family are ready for it, perhaps mentioning The Compassionate Friends -- along with its link I've posted elsewhere in this page -- might be gratefully received?
My local chapter is wonderful, and has kept my wife and I as sane as we are after losing our (only) son.
May peace be unto "Paul".