Desperate because she had received an ultimatum to leave Cora""s household when regarded as a sexual threat, Letty had no choice but to accept a marriage proposal from Lige when it was revealed that Roddy was already married.As she swims laps, he pulls the trigger, and blood spurts from a bullet wound in her left shoulder.[The angle of entry would be an impossibility from the vantage point of the killer.] The water turns red as she sinks below the surface.During the playing of the credits with jazzy, upbeat music from Lalo Schifrin (of TV""sMission: Impossiblefame later in his career) ("DIRTY" in the title of the film is a muddy brown color, "HARRY" is bright yellow), a sunglasses-wearing Inspector Harry Callahan (Clint Eastwood) of the San Francisco police force (Homicide Division) investigates, by himself, the scene of the crime and the probable location of the shooter [another rooftop with a gorgeous and dramatic skyline view of the Bay Bridge, Treasure Island, Yerba Buena Island and the surrounding city].An era[1924]which will grow more and more incredible with each passing generation until someday, people will say[1918]it never could have happened at all.Peter asserted Spider-Man""s objective: "Protecting innocent people from bad guys" - the same as the police.