Top leaders of the Chicago Outfit meet following the death of Paul Ricca to announce organizational structure.
I found an old FBI file I saved that indicates a Criminal - Top Echelon (CTE) informant has been providing information about Outfit business. Listed below is the link. Take a look and share your opinion about the identity of the RAT.
Just like Skinny said, no right or wrong answers.
http://www.maryferrell.org/mffweb/archive/viewer/showDoc.do?docId=70996&relPageId=3