Giancan was old enough to be sought for questioning concerning the St Valentins Massacre in 1929. This would lead me to believe the police considered him to be connected to Capone.
The 42 gang wasn't connected to Capone mob until 1932. Before that they were "hired" by numerous other gangsters such as the Gennas, Jack Zuta or the Aiellos. During the mid 1930's, one of the first members that was "made" into the Capone mob or the newly formed Chicago Outfit, was Sam Battaglia and maybe Louis Fratto if we consider him also a member or at least associate to the 42's since they all grew up in the same area. According to informants Giancana was “made” just prior to going to prison in 1939, so i don't believe that he had any connections to the old Capone mob in the late 1920's. He was 21 years old at the time and there's no hard evidence that he was a member.
