Inquiry Finds No Signs Family Aided Madoff.

Federal investigators have found no evidence so far that members of Bernard L. Madoff's family helped him carry out what may be the largest financial fraud in history, according to a person briefed on the case. Mr. Madoff's sons, Andrew and Mark, and his brother, Peter, all occupied senior positions at his firm, Bernard L. Madoff Investment Securities, whose assets were frozen after Mr. Madoff told law enforcement agents on Thursday that he had defrauded investors of up to $50 billion. [ABSTRACT FROM PUBLISHER]