The device that makes Vito seem sympathetic is repeated in II with Fredo. Even though Fredo betrayed his brother simply because he was "passed over" and more likely than not did know
it was going to be a hit on Michael, at the end we feel saddened that Fredo was killed, and we dislike Michael for taking vengence.
"Io sono stanco, sono imbigliato, and I wan't everyone here to know, there ain't gonna be no trouble from me..Don Corleone..Cicc' a port!"
"I stood in the courtroom like a fool."
"I am Constanza: Lord of the idiots."
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