I believe he was duped. How could he have willingly killed his brother. We all saw how badly affected he was when Vito was shot. How could he KNOWINGLY kill his brother, it would have torn him to pieces as it did Mike killing Fredo. As for the other gunmen, perhaps there were more people on the inside than we know, or maybe it was a mistake that Coppola and Puzo didnt want to bother fixing.
Don Ferro
And you liar, teller of tall tales: you trample all the Lord's commandments underfoot, you murder, steal, commit adultery, and afterward break into tears, beat your breast, take down your guitar and turn sin into a song. Shrewd devil, you know very well that God pardons singers no matter what they do, because he can simply die for a song.
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