Joe Serio, former CIA agent and Russian mafia investigator, rates Russian mob scenes in movies and TV, such as "John Wick," for realism. Eventually, he worked as a security consultant, and later as the Director of Operations, for Kroll Associates — a global corporate investigation and business intelligence firm — where he conducted investigations on Russian mafia groups. He was also a CIA agent for five years in Moscow, where he provided information regarding Russian organized crime. Serio wrote two books focusing on the Russian mafia and his life in Moscow, "Investigating the Russian Mafia" and "Vodka, Hookers, and the Russian Mafia: My Life in Moscow." You can find his books about the Russian mafia here.

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Persons: Joe Serio, John Wick, Keanu Reeves, James Gandolfini, Michael Imperioli, Barry, Bill Hader, Viggo Mortensen, of, Nicolas Cage, Ewan McGregor —, Denzel Washington, Pierce Brosnan, Serio, Joe Organizations: CIA, Russian, Italian Mafia, Soviet Union, Chechen, Control Department, Soviet, Kroll Associates, Russian Mafia Locations: United States, Russia, Moscow