Marylou Stansbury
Richard,
Please don't blame yourself in any way for the loss of your dear pet. You can only be held accountable if you contributed "knowingly" or out of willful negligence, which clearly, you didn't. You did what you trusted and believed would benefit him and you did so out of love and concern. We live and learn, but sometimes we learn after the fact. No fault of yours. Be comforted by all the wonderful memories you have of better times with him and be glad he didn't suffer much longer without your knowing it. God Bless!