Rice has a new basketball coach, so I'm sure that's the reason he decommited, and I'm also sure Cincy, Kansas State, Nebraska and Ok St. have all moved on.
Josh committed to Mike Rhoades, who is still at Rice.
I don't know exactly why he decommitted -- I doubt Rice dumped him because it was considered a major coup when he committed -- but I do know a lot of schools backed off him because they thought Josh was solid with Rhoades.
He also decommitted in August, and the better schools that had originally offered may have already filled the slots they had available for wings. It's how it works sometimes when plans change.
Put it this way: If he picks Mason, we will be very fortunate. If we get Josh and Greg Williams in the 2016 class, that is a grand slam home run.