Yes, he is diabetic, plus he doesn't feel pain, which is how his foot got so bad. He didn't feel it. He took his wife to the doctor and ended up in the hospital with gangrene. He had been ill for a few days, and he thought he had the flu.
His wife is staying with relatives, and a bunch of us on Facebook have taken up a collection to hire a pet sitting company to make sure the cats are taken care of daily. His step-children were coming in every couple of days to take care of them. Mark was very upset his babies!