In 1989 I first read the book "Market Wizards: Interviews With Top Traders" by Jack D Schwager.
Many of the wizards have later disappeared due to heavy trading losses, despite their earlier hugely successful investment career.
Later came S Cohen, another wizard and hedge fund manager.
He's one of the handful Wall Street investors who would make one billion US$ every year.
But look at what happened to him now:
http://finance.yahoo.com/news/cohen-barred-managing-investor-funds-183950360.html