I also felt your pain as I read your post. I can feel the pain that I know you are in from having your son die right in your own kitchen...and not being able to help him.
My son did not die in my house, but, I am the one who found him in his living room. And, there was nothing that I could do to help him....but, I do believe that he is now happy and free from all the pain that he had felt in his back and legs for the past 5-6 years prior to his dying. And, both of our sons will live forever in our hearts.
Take care and know that I do care.
Love and hugs....Rean