On this day, the criminal police team obtained the photo of the man in black in the surveillance screenshot and began to visit residents near Qi Shasha's home to look for clues.At this time, Lu Xingzhi received a call from Yang Man and learned that Yang Man had something urgent to go out, so he promised to pick up An Ning.However, when he heard the familiar music on the phone, he began to doubt whether Yang Zhe was harboring the murderer.Because the translation thing is probably what the murderer needs.What is even more suspicious is that Yang Zhe did not buy a house, but lived in Gangfeng Community within the scope of police investigation. He also went abroad for more than ten years when the murderer did not commit the crime.

At the same time, Yang Zhe took Yang Man to an abandoned factory and turned off her mobile phone while Yang Man was not paying attention.Lu Xingzhi took his team members to the company registered by Yang Zhe, but when he learned that the neighbor's uncle said that the company had not been used for a long time, he became worried and hurriedly asked someone to check the positioning system of Yang Zhe's rental car.At this time, Yang Man was not suspicious, thinking that Yang Zhe brought her to the factory to reminisce about the past, but Yang Zhe took the opportunity to take out a folding knife and scratched the wall a few times.

In fact, Yang Zhe's life is suffocating.Yang Man was the only light that gave him hope. He wanted to be with her, but felt that he was the only one who understood her best.This made Yang Man a little scared and tried to leave, but was held back by Yang Zhe, saying that this was the last time they would see each other.

Later, the criminal police team held a meeting. Lao Lu said that the DNA extracted from the stockings used to strangle Shasha's neck was different from the murderer thirteen years ago, which shocked everyone.Lao Zhu began to question whether the murderer was Wu Xiaowen.At this time, the time returned to 1997. Lu Xingzhi was eager to solve the case and broke into Wu Xiaowen's stationery store to look for pencils.

The next day, Wei Zhengrong sent the pencil to Lao Lu for testing, but Lao Lu had no results. He proposed to send the pencil to Bai Xiaofu for testing, which made Wei Zhengrong a little angry.On the other hand, Lu Xingzhi visited students who went to the stationery store and found that in their eyes, Wu Xiaowen was normal and did not seem to fit the characteristics of the murderer.However, Wei Zhengrong believed that the murderer should be between thirty and forty years old, with a certain level of literacy and a relatively liberal profession. These characteristics coincided with Wu Xiaowen's, which made him suspect that Wu Xiaowen might be the murderer.The two had a disagreement.

In the end, Wei Zhengrong couldn't help but go to Wu Xiaowen and asked him to lead the way to find clues.

When he went to Wu Xiaowen's house, Wei Zhengrong asked Lu Xingzhi to search the area, while he asked Wu Xiaowen to draw a portrait to test whether he was the murderer.Lu Xingzhi noticed it and cooperated with Wei Zhengrong to look for things, but found nothing.Wu Xiaowen sketched a portrait of Zhong Kui. Wei Zhengrong was a little surprised when he saw it, and then he put it in his bag.After Wu Xiaowen waited for the two people to leave, he put away his playful smile, stepped on the chair and touched the things on the beams, and was relieved to find that they were still there.