Ku was shot by Riggs with a semi-automatic after a fierce struggle in the water.Although Murtaugh was knocked unconscious, he revived soon enough to dive underwater and save his buddy Riggs from drowning, when a larger section of the pier crumbled and pinned him.He reacted to news of the futuristic, totalitarian, reprogrammed society run by a police state:"My brain? That's my second favorite organ.Now a Manhattan you shake to fox-trot time, a Bronx to two-step time, a dry martini you always shake to waltz ime.[Note: The woman was unnamed as in the novel, but in early drafts of the original script, the heroine's name was Daphne - after Daphne du Maurier.Spaulding announces: "The gates swung open and a Fig Newton entered." The Professor blows solid white puffs of cigarette smoke until Spaulding asks for a chocolate variety.