I've always wondered if The Colombo family itself wasn't involved. From the way it seemed it wasn't a secret that Persico was next in line to be Boss. And had a ton of loyalists on the street. Plus I can also imagine some resentment from guys having the head of their family putting himself out there like.

I will say this tho, seeing Scarpa protesting and doing an anti fbi speech in front of the fbi building is one of the funniest Mob related things I've ever seen