Mallory recalled the information he knew already: the car Kennedy was riding was around 12 meters from the building, and the building is 16 around meters high.
Mallory also solved for the missing angle, which was equal to 56°. This angle is what the Warren Commission suspected Oswald was shooting from the day of the assassination. If the angle is proven to be correct, Oswald is undoubtedly guilty.
Using the Pythagorean Theorem, Mallory computed that the hypotenuse was 20 meters.
The day after the incident at the police station, Mallory remembered something strange that happened after he left the police station.
When he was walking towards his apartment, he came across a package. Inside was a postcard that came from Las Vegas.
Mallory wondered what the package meant. Las Vegas could mean anything.
Mallory had a sudden bright idea. Las Vegas was called the City of Sin. So could the angle he was looking for be related to sin?
Mallory started to run the numbers. The sin of 56° is equal to 0.829°. Was this the right value?
Mallory got another package a few days after computing the sin of the angle. The package only contained a note with four numbers written on it: 0.829.
Mallory rushed to the police station. He finally had evidence against Oswald!
When he got to the police station though, he received surprising news: Oswald himself had been shot!
Mallory wandered through the streets, wondering what just happened. He nearly had Oswald! Kennedy could've been avenged!
Oswald's murder puzzled Mallory. Was Oswald's murder a cleanup by an outside force? Or just a coincidence? Mallory could only wonder as the Kennedy assassination became a thing of the past and the nation moved on...