This is more of a history question for the Chicago members or any knowledgeable member on the Outfit.

I came across this article written by John William Tuohy and investigative writer Dan Moldea claiming that the reason Gus Greenbaum was killed is when Paul Ricca found out that Greenbaum was stealing from the scheme at the Riviera.Gus stealed from the scheme that was the split between Chicago Outfit and the five New York Families.Later,according to Touhy,Ricca sent word down to Gus Greenbaum,that he expected a cut from the steal.So Greenbaum paid Ricca and than got stupid and stopped sending in his payment.That's when Marshal Caifano went to Vegas and orchastrated the murder of Greenbaum.Greenbaum's wife was also killed.

So according to this article Ricca knew about Gus stealing from the scheme and wanted his share and that lasted for how long?!

Its a similar story with Bugsy Siegel.Virginia Hill was a Chicago mob "starlet" and rumours are that she used to secretly scheme Siegel of his mob money.Right before Siegel's death,Virginia went strait back to Chicago.She told Siegel that shes goin to Paris,which she did and later came back to Chicago again.Rumours are that Siegel was killed by a member from the Fischetti crew or a hitman from the LA crime family on the orders of Chicago and NY.

My question is,is this true and could it be possible during the 40's and 50's the Chicago Outfit,under the rule of Ricca,sometimes schemed the NY 5 families?