Well it's a bankruptcy as you said Linda, that doesn't necessarily mean liquidation, Wamu could emerge from this re-organized, capitalized, and ready to do business again, there would be no need, or point, to paying or buying out shareholders. Your gain would come from an increase in valuation of the common shares you hold.
Wamu is NOT in chapter 7, they filed chapter 11, which is a protective filing, NOT a liquidation filing.
As to why CIT would screw their shareholders like that, you'll have to ask them, somebody needs to.