Sorry to keep going on about this but I am just a wreck right now.
I have to say this was the hardest time yet because his spirit was still very much in there in his broken body. He was scared and he did not understand why everything was hurting so much and nothing working anymore. I am clinging to the belief that when he got to the other side and felt good again he realized we did this because we loved him and not because we didn't.
It was easier with the others because they were in so much pain and so vocal about it that it made it easier to end their suffering. His stoic nature prevented him most of the time from vocalizing his suffering.