Book Review 1 part 2

After they found out that it was a gun, they thought that he was the murderer, so they did a balistic test and found out that the bullet matched the gun, so he was arrested. At the jail, father and son talked to each other and the son realised that it wasnt his father that did it. His father thought that the son did it as the gun was never fired in many years and suddenly one night he could smell the fresh smell of gun powder, and only him, his son and the keeper could access his house, and he knew he didnt do it, so he thought that the son did it.
However, it wasnt the son who did it, and then he realised that it must be the keeper that did it. Then, he went home and went into his mother's room and found a stack of notes. He realised that this is the key to save his father from his misjudgement and bring justice to his mother. However, at this time, the keeper brought his guards and caught him and his friend. He said if he did'nt hand the notes over, he will kill his friend. He decided to hand them over.
However, he haven't escaped justice yet, his son became first shot because he cheated with his gun and he didnt know how to use a gun properly. As during the graduation ceremony, they had to use the traditional school gun, so he hang fired, and he did not point the gun up, instead, he pointed the gun towards his father, and the bullet shot. That was when justice overcomed the evil and the murderer was killed.
This story is like harry potter, where evil can never overcome good. Even though there are parts that make you think that the evil has won, the justice will always come back to fight, thats the selling point of this story.