I feel for you.
I had to put my pal Shorty down last month.
I miss him more than I thought I would. He was a great cat. Just kinda always knew when the right time to come visit was.
He came to live with us after my father in law died. I found him as a kitten under my FIL 's front porch. He was feral, but came around quick. Shorty took care of Dick until he passed, we took care of Shorty until then.
I kinda hope Shorty is sittin' in Dicks lap right now.