Soon after the GE purchase, a skein of insider trading scandals, which came to define the Street of the 1980s and were depicted in the James B. Stewart bestseller "Den of Thieves", swept Wall Street. The firm was implicated when former Kidder Peabody executive and merger specialist Martin Siegel—who had since become head of mergers and acquisitions at Drexel Burnham Lambert—admitted to trading on inside information with super-arbitrageurs Ivan Boesky and Robert Freeman. Siegel also implicated Richard Wigton, Kidder's chief arbitrageur. Wigton was the only executive handcuffed in his office as part of the trading scandal, an act that was later depicted in the movie "Wall Street".