Silent Truth S01 E09

Season 1, Episode 09 – "Final"

Could it be that Junichi Hina (Ryoma Takeuchi) wasn't the one who shot and killed the bank robber 23 years ago!? The key to uncovering the truth lies in the handgun of a police officer who died in the line of duty, which was taken and hidden from the scene by four classmates: Junichi, Makiko Iwamoto (Mao Inoue), Keisuke Kiyohara (Koji Seto), and Naoto Sakuma (Daichi Watanabe), and used in the murder of a supermarket manager 23 years later.