Yeah its a good read found out a few new things . There a Criminologist Called Arthur Bilek who Studied Chicago Outfit for Over 30 Years He Had Access to Secret FBI Files And FBI Recordings . And Unreleased Justice Documents And Old Court Transcripts . In a 1995 Article Published in Real Crime Book Digest By Criminologist Arthur Bilek he Theorist the Killers who Done The ST Valentines Day Massacre . Was Tony Accardo. Fred Burke . Bob Carey . And Fred Goetz . He Studied the Case for over 30 Years . With Access Too Secret FBI Recordings And Unreleased Justice Documents And Old Court Transcripts . He Also Theorist that The Killers of Al Capones Attorney Turned Snitch Easy Eddie O Hare 1939 . And Union Hustler Tommy Maloy 1935. Was Gus Alex And Frank Ferraro .