Roy Who? What Tiger?

What ever happened to Roy Horn? A few months ago we were getting an update a minute. The second he responded to voices, we knew. When he declared that a full recovery was on the way, we were right there with him. But all of that has changed. For all we know, he could be doing the Tango with one of his Tigers in Mexico and we would be none the wiser. Earlier today I stopped by the Siegfried and Roy webpage, but nothing was said about Roy's current status...as a matter of fact I couldn't find anything about the accident that ended it all. Are they trying to hide something? We need to know. What's going on with Roy?