I'm still not ready to accept Fosco as a primary resource for information about The Outfit...he has too much of an axe to grind. But I do find the hair-splitting, the semantic arguments, and the constant bickering in the comments section to be entertaining.
Regarding the killing of Giancana, here's a post by board member HairyKnuckles from an earlier discussion with information that I would consider to be a primary resource which points to Butch as the trigger man.
http://www.gangsterbb.net/threads/ubbthr...1061#Post641061Without citing his sources, the rest of Fosco's essay about who was there and what happened in the house is pure conjecture.
tony b.