He busted down more than a thousand doors in his career....From chasing down dangerous felons on the gang unit to meticulously executing undercover operations in narcotics, Paul Milone has seen crimes and criminals from a perspective most cops never do. He infiltrated drug rings, purchased weapons from murderers, and even sold machine guns to cartel members, all while walking a tightrope between duty and danger. As an undercover cop, he looked like a criminal, played the role, and hid in plain s...