Before my time, I'm afraid. I was a kid when Kaufman was around, and I don't think my parents followed him at all, so I don't remember anything. I do know quite a bit about him now, of course.
Apparently his brother fully believed this, but now he think he's been the victim of a hoax. Probably something I would have figured out before going on the news with it, but I guess this could all just be part of keeping the Kaufman legend alive. Honestly, it wouldn't surprise me in the slightest if he were still around, and "retired" like his brother said.