I am sorry to hear about Maxx but I know how you feel 11 months ago I had to do the same thing for my Tristen and it was one of the hardest things I have ever done. My deepest sympathy goes out to you and your family
It was tough, but you did what was right for him. He is no longer suffering and will continue to live on always in your heart. He was lucky to have lived such a long life in your loving family.