Most investors in Bernie Madoff's epic Ponzi scheme initially assumed they had lost everything. But a new distribution announced Tuesday by court-appointed trustee Irving Picard will bring the total amount returned to investors past $5 billion for the first time.

In all, Picard and his team have recovered some $9.3 billion. That is more than half the $17.5 billion in principal Madoff investors lost—something few thought possible when the scam came to light in December, 2008. But even now, new information about the fraud is coming to light.