"It was a time of unregulated madness. And nowhere was it madder than in Chicago at the dawn of the Roaring Twenties. Speakeasies thrived, gang war shootings announced Al Capone's rise to underworld domination, Chicago's corrupt political leaders fraternized with gangsters, and yellow journalism only contributed to the excesses. The frenzy of stock market gambling was rampant. Enter a slick, smooth-talking, charismatic lawyer named Leo Koretz, who...