The way his disease works, he cuts off all contact with the outside world, so even if he didn't answer the door, it wouldn't mean anything. He's in a condo unit, so I wouldn't be able to get close enough to peek under the curtains.

He still hasn't responded to my messages, but that could just be because he's not well. No ID in the news, either. I've talked to a few mutual friends, which may have been a bad idea, because now we're all worried.