Yep it covers The Westies and their diy butcher disposal method.Gonna check that out tonight. Read a book on the subject many years ago, not sure if the show deals with the Irish mafia in NYC but recall how they were the first to cut up bodies for disposal.
They weren't the only ones who did this. Around the same time Gambino mobster Roy DeMeo and his associates the Gemini crew (named after the lounge they worked out of) also used the chopping up bodies method and they were much more prolific.
DeMeo had trained as a butcher and they had a system that became known as the gemini method. Basically they'd lure the victim to the basement where DeMeo would jump out and shoot the person in the head, then he'd rap a towl round it to stop the blood oozing out. Another member would then stab the victim in the heart to stop the blood pumping so there'd be less mess, they'd then hang the body over the bath for half an hour to let the blood drain out then butcher the corpse.
In a documentary I watched about it (YouTube link below) one of the police officers who investigated them said once they'd finished they would order pizza and eat it with their still bloody hands?.
They think DeMeo and the gemini crew may have murdered up to 200 people between the 1970's to early 1980's.
Anyway it's a very good documentary but given the subject matter it's obviously a tad grisly so maybe avoid if you don't like that sort of thing.