Dellacroce or Tony Accardo being rats is just not even realistic. Dellacroce, a true Sicilian lived and breathed mafia. Accardo,a boss's boss,say no more.
Neil's parents were from Veneto, in the North of Italy.
I don't believe for a second that he was a rat, I'm just letting you know for the sake of clarity.
"I got news for you. If it wasn't for the toilet, there would be no books." --- George Costanza.