Who killed Brother Zhazhi 2 Friends?

Lin. In the movie "Zhazhi 2", Brother You was killed by the underworld eldest brother, and Lin, the gangster played, shot and killed his half-brother. But this plot does not come from the original characters or events, but from the setting of characters and plot arrangement. At the same time, there are many villains, and the shaping of these villains is also successful and impressive, which makes the audience feel that the underworld boss personally killed his own brother.