My mom was at his death bed, and held him when he died. He was very well aware of what happened around him until the final moments, but had a hard time talking and moving in his last week. For all I know, he wished to die sooner, as he perhaps could not stand himself being weak. His mental image of himself was always a strong and clear-minded man, which was breaking after his illness after a few heart attacks he survived.
He is the nearest person I have lost to death. I tried my best to not look at his corpse, hoping that the avoiding will help me keep a better last image of him in my memory.
I had written here about him previously, on a note about Rumsfeld.