Great questions so far! I'd add:
--How did Hagen die?
--Who was Don Lucchesi?
--Why did Altobello betray Michael?
--Why did Archbishop Gilday conspire to deny Michael control of Immobiliare?
If I had the answers to those questions, I'd probably enjoy III a lot more than I have so far.


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.