Chicago Day at the Coumbian Exposition was held on Oct. 9, 1893 to observe the 22nd Anniversary of the Great Chicago Fire of Oct. 6-7, 1871. Chicago Day drew the largest single-day crowd of the 1893 Fair of about 700,000 visitors. On the last day of the Fair on Oct. 28, Chicago Mayor Carter Harrison made a final address and when he went to his home he was shot and killed by Eugene Patrick Prendergast who told police he was angry because Harrison did not hire him for a job with the city Corporation Counsel's office. Predergast had no qualification for such a job and some thought he was insane and his attorney Clarence Darrow agued he was insane but medical experts were divided in their opinions. But Prendergast as tried, found guilty, and executed in a matter of weeks.