Based on what kind of hijinks these MM's have shown us this could be a huge hook just so they have access to shares for the next wave of shorting. Last time they drove the stock down there was a huge premium for borrowing shares. My guess is they caught a lot of flack from the greedy shorts on how much they had to pay to borrow shares last time around.
I hope there is some substance that is causing what is going on but this beat down long has seen too much manipulation to believe this is based upon notable news.