In the Russian winter of 1878 a shy, aristocratic young woman named Vera Zasulich walked into the office of the governor of St. Petersburg, pulled a revolver from underneath her shawl, and shot General Fedor Trepov point blank. "Revenge ," she cried, for the governor's brutal treatment of a political prisoner. Her trial for murder later that year became Russia's "trial of the century," closely followed by people all across Europe and America. On...