Former Madoff Aide Charged With Conspiracy, Securities Fraud

Bernard Madoff's claim to have pulled off his multibillion-dollar swindle without assistance unraveled further on Thursday, as one of his longtime aides was charged with helping him cook the books. Daniel Bonventre, an accountant who worked for Madoff since the late 1960s, faces conspiracy, securities fraud and tax charges. Bonventre was also sued Thursday by the SEC, which accused him of falsifying records both to disguise Madoff's fraud and also to illegally enrich himself. Madoff is serving a 150-year prison sentence.