I am so sorry for those who have lost children. Therapists are unlikely to say it is the parents fault. That may be your son's conclusion at that moment of time pigsmayfly but lots of children blame their parents when things go wrong in their lives. It is easier to blame parents rather than taking the responsibility themselves. I am sure you did your best and no parents are perfect. Try not to take his accusations to heart. Hope things improve for him and for you.
Is there such a thing as delicious ready meals?
How do you acknowledge Easter.