Question: Who directed an episode of the American science fiction television series based on a story by a man who followed in his father's footsteps and joined the Los Angeles Police Department, where he also began to write scripts for television?
Sentence (from "Zebra Three"): Fans of the show applied the code name as a nickname for the Ford Gran Torino that Starsky owned; the general public picked up on it, and the car has been known since (incorrectly) as "Zebra Three", or more correctly the "Striped Tomato".
Relevant evidence: No