Former NYPD Detective Randy Jurgensen walked a beat in Harlem all the way into Hollywood’s greatest crime dramas of all time. He is known as the cop who killed Sonny Corleone in The Godfather. Gene Hackman pats down NYPD Detective Randy Jurgensen to learn proper police procedures to use in the filming of The French Connection His walk of fame started when William Friedkin, the director of The French Connection, asked Jurgensen to demonstrate how to put a suspect against a wall for the “pat down.” Friedkin hired Jurgensen as the film’s technical consultant to advise him on how to realistically show the gritty side of heroin trafficking in the 1960s. NYPD Detective Randy Jurgensen playing a police sergeant in The French Connection It became Jurgensen's job to turn actors Gene Hackman and Roy Scheider into narcotics detectives.  Jurgensen turned out to be a natural on camera and was given the role of an NYPD Sergeant in the film. 3rd Person Left -- NYPD Detective Randy Jurgensen Plays a p