A New and Sordid Definition of Jewish Genius

But a question still dominates the investigation: how one person could have pulled off such a far-reaching, long-running fraud, carrying out all the simple practical chores the scheme required, like producing monthly statements, annual tax statements, trade confirmations and bank transfers.

Firms managing money on Mr. Madoff’s scale would typically have hundreds of people involved in these administrative tasks. Prosecutors say he claims to have acted entirely alone.

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