Lu Xingzhi and Lao Du took the photos of the suspects to find people near the community for questioning, but because the suspects didn't show their faces, many people couldn't recognize them at all. The hospital called Lu Xingzhi, but he didn't answer, so Wei Zhengrong knew that he was discharged from the hospital without authorization. An Ning also called Lu Xingzhi, and she asked Lu Xingzhi to pick up An Ning after school at night. Hearing the sound of music from Yang Man, Lu Xingzhi asked and learned that she was with Yang Zhe now. Lu Xingzhi began to doubt Yang Zhe, mainly because Yang Zhe's identity was highly similar to the person they were looking for now. He called the bureau and asked his colleagues to help investigate Yang Zhe.
Yang Zhe had been abroad in the middle, and Wei Zhengrong mentioned it. At the end of 1997 and the beginning of 1998, they carried out an entrapment operation, but since then, they have completely lost track of the murderer. Bureau Huo called him back, and Lu Xingzhi learned that Yang Zhe didn't have a house in Nandu, but his parents had three apartments, one of which was called Gangfeng Community, which happened to be within the scope of their investigation. The master and apprentice and the other two criminal policemen went to Gangfeng Community, but the house was locked, and the neighbor next door said that no one lived there for a long time. Because Yang Zhe secretly turned off Yang Man's cell phone, Lu Xingzhi couldn't contact Yang Man. He was very worried about this, but the car rental company should have the GPS of the BMW that Yang Zhe rented.
Yang Zhe took Yang Man to the suburbs, where they used to play when they were young, and now it is full of weeds. Yang Zhe took her into the abandoned tunnel, where there was his carved portrait of Yang Mang. He took out a small knife, pulled Yang Man away, and carved a few more strokes on the stone wall. His appearance made Yang Man feel terrified. Yang Zhe confessed his love to her, and admitted that his life was an illusion, all for Yang Man to see. And Lu Xingzhi doesn't know how to cherish her at all, he is the only one who understands her best. Yang Man understood what he meant and refused decisively, but Yang Zhe still finished speaking. The police found the location of the BMW. Lu Xingzhi immediately followed the route and caught Yang Zhe. Yang Man was fine and she was buying books in a bookstore.
At the same time, Lao Lu's DNA analysis test report came out. Faced with this unexpected result, Lao Lu immediately notified Team Huo, and Team Huo immediately contacted Lu Xingzhi. Back at the police station, Lu Xingzhi directly locked Yang Zhe in the interrogation room, and then went to a meeting. Lao Lu said that the murderer who intended to kill Qi Shasha this time did not match the DNA of the murderer thirteen years ago, so the murderer this time was not Thirteen The murderer of years ago. Thirteen years ago, they suspected that Wu Xiaowen was the murderer. Wei Zhengrong asked Lu Xingzhi to go home first, went to Wu Xiaowen's stationery store late at night, took away three HB pencils, and deliberately messed up the things in the stationery store.
Wei Zhengrong handed three pencils to Lao Lu, and asked him to find a way to test whether these pencils were from the same batch as the pencils found at the scene of the crime. Lao Lu asked him to find Bai Xiaofu, but Wei Zhengrong was unwilling to go. As the investigation deepened, Lu Xingzhi felt more and more that Wu Xiaowen didn't look like a murderer, but Wei Zhengrong was just the opposite. For this reason, he went directly to Wu Xiaowen's house to chat, and Lu Xingzhi also went with him. Wei Zhengrong chatted with Wu Xiaowen, and Lu Xingzhi searched his house. Wei Zhengrong tested Wu Xiaowen and asked him to draw a picture for himself. After getting the painting, Wei Zhengrong achieved his goal, so he took Lu Xingzhi away. After they left, Wu Xiaowen probed the roof, and there seemed to be something hidden on it.