The trustee tending to the victims of Bernie Madoff's Ponzi scheme is preparing to file a civil suit against the swindler's sons and brother, CBS News reports. The trustee, Irving Picard, may seek over $50 million through civil complaints against Mark, Andrew, and Peter Madoff. Sources say the move is a step towards forcing the Madoffs "to reveal all their assets," including a Nantucket home bought by Mark Madoff and his wife with $6.5 million in cash transferred from Bernard L. Madoff Investment Securities the month before the crime was exposed. Madoff's sons turned their father over to authorities so the trustee will not be accusing them of any illegal activity. Instead, the trustee is attempting to hold family members accountable for assets they may have obtained through Bernie's scheme.