From what I've gathered, Ricca took over officially after Nitti killed himself in '43, but was boss for less than a year because he went away for 10 on extortion. Accardo took over. Ricca was paroled after 4 years-plus, was respected and consulted, but never ran the family again.
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.