I hope his loved ones keep an eye on him and he does not do something foolish to himself due to the painful guilt which as stated will never leave him but as also stated he is needed for his remaining family
The horror of losing a child is described by those who have experienced it as the worst possible thing one can endure. The only thing worse, I would imagine, is the knowledge that it was you who brought it about. Poor Todd. He's one of our own.