You're right, Oli. And, he never says, "It's business, not personal" in the novel--that's just in the film. He does say, in the novel, "It's the only way" [to make sure Sol doesn't get another crack at Vito].
Ntra la porta tua lu sangu � sparsu, E nun me mporta si ce muoru accisu... E s'iddu muoru e vaju mparadisu Si nun ce truovo a ttia, mancu ce trasu.
