Here’s the original script for Bill Lustig’s MANIAC COP, titled simply “Cordell” by master screenwriter Larry Cohen.
Cordell (aka Maniac Cop) (3.16meg) July 7th 1987 Draft by Larry Cohen – PDF format
Innocent people are being brutally murdered on the streets of New York by a uniformed police officer. As the death toll rises and City Hall attempts a cover-up, Frank McCrae heads the investigation. A young cop, Jack Forrest, finds himself under arrest as the chief suspect, having been the victim of a set-up by the real killer and a mysterious woman phone-caller. Forrest, his girlfriend Theresa, and McCrae set out to solve the puzzle before the Maniac Cop can strike again.