The Wrestling Observer said, "The only details we've heard is that he had a fall at his house earlier today and his kidneys were shutting down and he started to get dehydrated."
There was nobody quite like The Dream. You wouldn't think "fat guy who speaks in the manner of a southern baptist minister" would be the formula for one of the biggest stars in wrestling history, but he was. The guy was red-hot and super over no matter where he went or what he did - even when he pranced around in polka-dot trunks.
Here's a little biography from Meltzer that isn't behind the paywall, I'm sure he'll have a epically long obituary and story on his life in next Observer.
Dusty Rhodes passes away