Andy Gerardo, here we go. This is a quote from his Mafia Wiki page.
"In the 1980's, Gerardo's crew was infiltrated by an ex-cop named Mike Russell, who one day by chance while driving down Bloomfield Avenue in North Newark saw two young guys attacking an older one. Russell went to the aid of the older man, driving off the attackers. He later discovered that the guy he'd helped was Andrew "Andy" Gerardo, now head of Boiardo's old gang. Gerardo invited Russell into his hangout, a coffee shop on the avenue just a few steps from a monument to Christopher Columbus and the Italian American contribution to America. There, Russell met other key members of the crew, who treated him like a hero and befriended him.
Russell then contacted a friend of his in the state police, who asked him to begin surveillance on the crew. Incredibly, the mobsters invited Russell to move his oil delivery business into a storefront adjoining their Newark headquarters, figuring he was friendly, and from there the investigation took off. But unbeknownst to the state police, Russell enlisted a cameraman and began his own videotaping of the crew, which provided most of the material for a documentary entitled "Confessions" which aired on HBO."
I've also seen the HBO thing and it wasn't THAT bad.
