Who is the murderer of Li Taiyuan's murder case?

I just watched this movie the day before yesterday ~

It is said that this film is based on the real murders in Korea from 65438 to 0997.

1. The police officer Park in the play is a good prosecutor, and he insists on finding the real murderer. Because of the previous evidence, everything was directed at Alex, and Pearson's words were flawless.

Alex and Pearson used to be good friends, but because of the murder, neither of them wanted to be implicated, so they put the blame on the other side, and their previous friendship is gone. In fact, this movie has an open ending, so even if the director sets the murderer, the audience will feel it for themselves.

Speaking of lawyers, in fact, judging from his later expression, he actually knew that Alex had something to do with the murder, otherwise he wouldn't go out to see Alex and his girlfriend after they left, and personally thought the lawyer's look at Alex was very interesting. . . Besides, doesn't what Alex said just mean that he is probably the person he said at that time?

4. At the end of the film, Pearson speaks Korean with the police officer. I think this is evidence to prove Pearson's dishonesty, which implies that Pearson is dishonest and what he said before is not credible.

Pearson thanked Officer Park for fully proving that he was indeed involved in the murder. Although it was not stated in the end, it can be seen from the words of police officer Park that police officer Park "appreciates" him because he thinks he is well disguised. "Don't sell yourself short" means that police officer Park still believes that one day, things will come out. .

And Pearson's sneer, I think it's understandable. He thinks it's useless to catch his police officer Park even if he knows the truth ~ I think so.

Personally, I think they are all murderers. I remember a scene in which two foreigners testified in court (a black man and a white man), and the white man obviously retracted his confession; In another scene, Alex's father went to a senior government official to review the case for his son. This also reveals that Alex's family background is good. Dad is like Li Gang. When his son made a mistake, his father came to help. . . .

And police officer Park finally found out that the murderer may not be a person's problem at all, so at the end of the movie, there was a clip where he asked the deceased who killed him. . Police officer Park finally found a new school for his children and moved himself. I think it's also because of Alex's father. .

In short, this film is a suspense blockbuster, and the shooting technique is rather vague. The open ending was originally intended to leave a suspense for the audience ~