Thus far, the legal fallout from Bernard Madoff's epic ponzi scheme has been limited to the man himself. Now, Madoff's top investors are under the feds' microscope, as they investigate whether the investors knew why they were receiving returns that were simply too good to be true. The Wall Street Journal reports that some of the men being investigated would tell how much in returns they wanted, and Madoff would subsequently deliver the expected sum. Some of the top investors received 300 percent returns—or 950 percent a year—absurd numbers that certainly arouse suspicion. The feds are combing through Madoff's records—which are said to be quite detailed—for any clues. The investors under investigation deny all wrongdoing and claim to actually be some of Madoff's hardest hit victims.