Bernard Madoff Scandal

File picture shows Galleon hedge fund partner Raj Rajaratnam (L) is escorted by FBI Special Agent B.J. Kang (R) after being taken into custody in New York October 16, 2009. B.J. Kang may be the most feared man on Wall Street. When Bernie Madoff, who engineered history's biggest Ponzi scheme, was arrested, FBI Special Agent Kang was right at his side. And less than a year later, there was Kang again, in a "perp walk," shuffling alongside a handcuffed Raj Rajaratnam, the former hedge fund star at Galleon accused of earning millions off illegally obtained stock tips. The question on the minds of investors, managers and lawyers inside and outside the hedge fund industry today is, who's next? Picture taken October 16, 2009. To match Special Report HEDGEFUNDS/SAC REUTERS/Brendan McDermid/Files