Correct me if I'm wrong, but doesn't the info on Persico not being the official boss come from CIs in old FBI reports? Not exactly cold hard facts. Then there are other informants like Cantelupo and Franzese that say DiBella was acting boss for Persico.

On top of that, during the trial that put Persico away, Fred DeChristopher testified that Persico had confided in him that he voted against killing Galante.
https://www.nytimes.com/1986/10/03/...of-mafia-boss-an-informer-testifies.html

However, he also allegedly confided in DeChristopher that he was involved in the murder of Albert Anastasia, which I doubt is true.
https://www.upi.com/Archives/1986/06/13/Nine-mobsters-convicted/1764519019200/