http://www.chicagoreader.com/chicago/busted/Content?oid=891725 "Darrell Zimmerman can't seem to distance himself from the Chicago Board of Trade. It was the institution that lured him to Chicago more than a decade ago. It was temptations within that eventually drove him away. And now it looms outside the window of his cell at the Metropolitan Correctional Center. On October 22, 1992, Zimmerman tried to corner the world's largest securities market. For 15 minutes, with only a bad check for $50,000 in his trading account, Zimmerman controlled the market in U.S. Treasury bonds by accumulating more than three billion dollars' worth of futures contracts........"