The fifth guy is the young Hyman Roth. But you'd never be able to identify him if you hadn't seen the deleted scene in which Clemenza introduced him to 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.
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