Peppino Impastato, an activist in 1970s Sicily, used radio to defy the mafia's reign. His bold defiance led to his murder by the mob, exposing society's silence on organized crime.Peppino Impastato, an activist in 1970s Sicily, used radio to defy the mafia's reign. His bold defiance led to his murder by the mob, exposing society's silence on organized crime.Peppino Impastato, an activist in 1970s Sicily, used radio to defy the mafia's reign. His bold defiance led to his murder by the mob, exposing society's silence on organized crime.