Based on the clues we have so far, it is basically confirmed that Jiang Guangshan is the murderer of the 1988 case and the throat-cutting case, including the electrical machinery factory murder case, and that he intentionally kidnapped Nie Xiaoyu and killed Nie Baohua. Song Zhe reported the ins and outs of the case to Gu Weidong. Although Jiang Guangshan identified the crime scene and confessed his crimes, he only denied that Chen Shanhe's death had anything to do with him.
Gu Weidong believed that Jiang Guangshan did not want to get rid of the crime, but took this opportunity to demonstrate with the police to prove that he had not been completely defeated. So Gu Weidong thought twice and decided to interrogate Jiang Guangshan in person, as for Gu Kaiyan and Song Zhe to cooperate. At first Jiang Guangshan was still arrogant and threatened to let Wei Guoping come over, but when Gu Weidong mentioned Liu Xiu'e, he saw his face change.
With the murderer arrested, Wei Guoping came to the hospital for surgery under everyone's persuasion. Nie Xiaoyu was by his side the whole time, looking at Wei Guoping who was unconscious on the bed, he felt very uncomfortable. Gu Kaiyan came to the hospital to visit and revealed to Nie Xiaoyu that Jiang Guangshan refused to admit to killing Chen Shanhe.
However, Nie Xiaoyu said that he had evidence in his hand and could 100% confirm Jiang Guangshan's crime. Gu Kaiyan was shocked when he heard this, and angrily accused her of why she didn't show it back then, which caused the case to be delayed until now, and even Wei Guoping was involved. Listening to Gu Kaiyan's words, Nie Xiaoyu felt sad and blamed herself. At this time, Wei Guoping woke up leisurely and heard the conversation between the two.
Accompanied by Wei Guoping, Nie Xiaoyu went home and took out the evidence that had been buried for many years. It was the key she had pulled from the murderer, and it was also an important physical evidence for Jiang Guangshan. It is precisely because of this that Gu Weidong is confident that Jiang Guangshan will confess and guide him to tell the truth step by step.
Jiang Guangshan's psychological defenses were gradually broken, and he admitted that he had suffered humiliation since he was a child, which led to psychological distortion and murder for revenge. Later, Jiang Guangshan met Liu Xiu'e who was kind to him from the bottom of his heart. He thought he would lead a normal life, but Liu Xiu'e suffered three consecutive miscarriages and was seriously ill at the same time, which made him fall into despair again.
Just when Jiang Guangshan was planning to die in love with his wife, he accidentally met Zhao Shijie, and it was Zhao Shijie's humiliation that aroused the dark thoughts buried in his heart. Gu Weidong took out the family lock that Liu Xiu'e entrusted him to give to Jiang Guangshan, and the key provided by Nie Xiaoyu, and revealed that all the police officers in the police station raised donations to collect Liu Xiu'e's surgery expenses. Jiang Guangshan couldn't help crying anymore, and told himself truthfully The crime of killing Chen Shanhe.
In the end, the criminal suspect Jiang Guangshan was sentenced to death and executed immediately for several crimes including intentional homicide and kidnapping. Years of investigation by teams 3 and 4 came to fruition. Nie Xiaoyu, who was waiting outside the door, seemed to lose strength, and slowly left with Wei Guoping's support. Nie Xiaoyu asked Wei Guoping if he ever disliked her. Wei Guoping hugged her and replied that he never disliked her. Song Zhe looked at the back of the two walking away and proposed to send Gu Kaiyan home. Gu Kaiyan agreed with a smile.
Then Gu Weidong interrogated Zhao Shijie, and let him quibble, the law is clear, and the crime has nowhere to hide. Wei Guoping and Nie Xiaoyu accompanied Chen Yougui's family to worship Chen Shanhe. Now that the murderer has been punished and Chen Haohan has returned to his family, he believes that Chen Shanhe's spirit in heaven can rest in peace.
The matter was completely settled, and Nie Xiaoyu transferred the coffee shop to Lili, including the flower shop, and then said goodbye to Wei Guoping, saying that he would leave Ningjiang to open an inn in Yunnan. Wei Guoping will still be a policeman, but he has no scruples to face his inner feelings. When Nie Xiaoyu turned to leave, he suddenly yelled "stop", Nie Xiaoyu immediately stopped, showing a long-lost smile.
After preliminary investigation, Yu Aiqin's dismembered body case is related to overseas human organ trafficking organizations, and Zhao Shijie, one of the main suspects, has been investigated by the public security organs. Under the leadership of Gu Weidong, Wei Guoping, Song Zhe, Gu Kaiyan and other police officers have devoted themselves to their new work. How well hidden, the defenders of the people will surely find out—who is he!