text:  There's no evidence that the Sons knew it was a quote-unquote Ponzi scheme. But there was a lot of fraud going on, including between the so-called legit unit and the illegitimate unit. For example, in the last 10 years of the firm's existence, nearly $800 million moved from the phony end of the business to the legit end to prop it up. It was losing money. It was hemorrhaging.