In better days, Allen Stanford was, by most accounts, a loqacious and charming figure, wooing clients, lawmakers, and foreign dignitaries alike with the sheer power of his personality.

Now, not so much.

In court documents filed today, Stanford took the fifth, declining to testify in the SEC's complaint against him, in which he is accused of orchestrating an $8 billion Ponzi scheme.

His former college roommate and Number 2 at Stanford Financial Group, Jim Davis, is likewise staying mum, it was reported last week.