Nov 22, 2011. My Dad came up to Chicago for Thanksgiving, and I took the train to the airport to bring him back to the house. This is the end of the Blue Line at O'Hare Airport. Eddie O'Hare was a lawyer associate of Al Capone's who helped put Capone away for tax evasion. While driving his car, he was gunned down from another car. The airport was named after his son, Butch. Butch graduated from the US Naval Academy and was a decorated fighter pilot during World War II. He was the first WWII flying ace after shooting down five Japanese bombers while the only other plane available to protect his carrier, the USS Lexington, had a problem with jammed guns. He was also the first naval aviator awarded the Medal of Honor due to that day's action. He received other honors during the war, but was eventually killed in battle with another squadron of Japanese bombers.