A trove of long-hidden FBI files shed light on how slain Gambino boss Frank “Franky Boy” Cali ascended from a family soldier in the 1990s to head of the powerful crime syndicate until his shocking killing in 2019. The heavily redacted files, obtained by The Post through a Freedom of Information Act request, offer to date perhaps the most revealing look into Cali’s rise to power — as the mafia kingpin was known as a “ghost” who kept an extremely low profile to avoid federal prosecution. Cali — who was gunned down outside his Staten Island mansion at 53 —...
