Build a movie plot around this: What does Harry begin to suspect about the murders? that a secret death squad within the department
The answer to this question is:
The opening credits are played over a shot of a Smith & Wesson Model 29 revolver against a red background. When the credits finish playing, Harry Callahan's voice tells the audience, "This the .44 Magnum, the most powerful handgun in the world. And it could blow your head clean off. Do you feel lucky?" The hand turns the revolver and fires at the camera.Labor racketeer and local mobster Carmine Ricca (Richard Devon) drives away from court after being acquitted on a technicality for the killing of a labor union leader and his family, much to the outrage of a mob of protesters outside the courthouse. A San Francisco Police Department motorcycle cop with a photo on his dresser sees this on a TV broadcast and puts on his helmet and gear, then leaves his house.Ricca, his attorney Weinstein, a bodyguard, and his driver James "Gino" Cantina drive a limo south on I-280 towards Potrero Hill. The motorcycle cop we just saw earlier catches up to the car and gestures for the driver to pull over. The driver pulls off onto a side street at the next exit, and comes to a stop. The cop walks up to the car and asks the driver for his license, telling him that he illegally crossed a double-white line. At Ricca's attorney's urging, the driver reluctantly hands over his license. The cop goes back to his bike, supposedly to write down information in his ticket book. After a few minutes, he returns and asks the driver for his vehicle registration. The driver asks to get his license back. In response, the cop suddenly whips his revolver out and shoots the limo driver in the side of the face. He then shoots the bodyguard in the passenger's seat as he tries to draw a pistol. He then puts two bullets each into Ricca and his attorney in the backseat. With all four men dead, the cop holsters his smoking revolver, walks back to his motorcycle and rides away.Inspector 'Dirty' Harry Callahan (Clint Eastwood) and his partner Earlington 'Early' Smith (Felton Perry) drive by the crime scene, but are asked to leave by Harry's newest adversary...