Who killed the mole by name?

* * The script turned the ghost in Ghost into a public sister. There is no difficulty in this murder, the purpose is to bring the whole story up. Brother K was shot in the back of the head. It is not difficult to see from a small theater that the only people allowed to appear behind Brother K are the red group and the crow, but Brother K saved his life, and the crow took the rap for Brother K and went to prison. Although he likes Sister Hong, he doesn't have enough motivation to kill Brother K. Through the clue: Sister Hong installed a GPS locator in Brother K's car, combined with the clue of Chen Zebang's death, it is not difficult to guess that the relationship between Sister Hong and Chen Zebang is extraordinary and he is very sad about Chen Zebang's death. The informer is also a red sister. Combined with the appearance of black Mercedes on the night of Chen Zebang's death, combined with the locator on the car. It can be inferred that Sister Hong thinks that Brother K killed Chen Zebang, so Sister Hong killed Brother K in order to avenge her adoptive father. But what Hong Jie didn't expect was that another person did it that night.