And how about another question for all of you who read the novel just like me.

How come Virgil Solozzo never came to the wedding of the daughter of The Godfather where he won't be refused by his business offer?
Solozzo was Sicilian, right?

And

How come Virgil Sollozo never went to the Genco Olive Oil Office and proclaim his undying friendship? Am quite sure the Old Man would reconsider the drug business and find ways to meet Solozzo's proposal in half way.

"You can all go dancing on the bottom of the ocean." -Don Clericuzio