In this episode of Gangland Wire, host Gary Jenkins sits down with former FBI agent Séamus McElearney, author of Flipping Capo, for a deep dive into one of the most remarkable Mafia investigations and how he took down the DeCavalcante Family.
McElearney recounts his unlikely path from banking to the FBI, driven by a lifelong fascination with law enforcement. Despite being told he didn’t have the “right background,” he pushed forward—eventually landing in New York’s Organized Crime Squad C-10, where he investigated both the Bonanno and DeCavalcante crime families. He describes the rare and demanding experience of working two Mafia families at once, and the teamwork required to dismantle them from the inside out.
As the conversation turns to his book, Flipping Capo, McElearney explains the years-long process of writing it and the rigorous FBI review needed to ensure no sensitive investigative techniques were revealed. He shares early memories of notorious boss Joe Massino, and the high-stakes surveillance and arrests that defined his career.
A major focus of the episode is the arrest and flipping of Anthony Capo, a feared DeCavalcante soldier—and the first made member of that family ever to cooperate with the government. McElearney walks listeners through the tension of that operation, his calculated approach to treating Capo with respect, and the psychological tightrope that ultimately persuaded Capo to talk. That single decision triggered a domino effect of cooperation that, many believe, helped bring down the New Jersey mob family, which inspired The Sopranos.
Gary and Séamus dive into the proffer process, cooperation agreements, and the behind-the-scenes strategies used to turn high-level mobsters. McElearney also draws comparisons between real mob figures and the fictional world of The Sopranos, revealing how much of the hit series was grounded in the actual cases he worked.
The interview closes with McElearney’s reflections on how organized crime continues to evolve. While today’s mob may look different from the one he battled in the ’90s, he stresses that the methods—and the money—still flow. His candid insights offer a rare look into the changing face of the American Mafia and the ongoing fight to contain it.

Click here to get the book Flipping Capo


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