Shao Lao bid farewell to the old grandmother who was still eating sweet porridge, and went to look for Jiang He. According to Mr. Shao's analysis, there are 30 floors on the opposite side. As long as there are above the sixth floor and the fifth floor below the tenth floor, anyone who looks across the room inadvertently can see Wang Ziyi's living room.

Sure enough, when Jiang He asked about the residents on the ninth floor, the residents on the ninth floor finally gave some hope. It was about 9:40 last night, and Ms. Liu, who lived in Dongfang Community, had just dragged her tired body home. She opened the door and threw the bag in her hand on the sofa. Then, she opened the window to ventilate. At this time, she glanced at the building opposite.

It was this sight that became the most important clue for the task force.

Ms. Liu said: "I just glanced at it at first, and saw a light on opposite, a man and a woman in the room. The woman's back was facing me, and the man was facing me. I was bored, so I just I stood there and watched for a while. Then I don't know what happened, and I'm actually wondering why you guys are asking me this question."

Jiang He asked, "Then are you sure you're seeing the sixth floor, not the rest?"

Ms. Liu nodded seriously and said, "This is definitely true."

Said, Ms. Liu stood by the window, pointed at Wang Ziyi's house, and said, "The sixth floor is the highest floor opposite, you can see it at a glance, I'm talking about the family, there should be no mistake."

Indeed, if it is the other floors, it may be a simple judgment, but if you live on the top floor, you only need to see it at a glance.

"Are you sure it's a man and a woman, and the man is facing you?" At this time, Shao Lao finally said, "Have you seen what a man looks like?"

Ms. Liu touched her chin with her hand and thought, "I'm a little fat, and then it looks good, and the person is darker. It's probably like this, I don't know how to describe it."

Jiang He took out his mobile phone, called up a photo of Lu Zhengye, and showed it to Ms. Liu: "Is it this person?"

Ms. Liu glanced at it and said, "It's not this person."

"No?" Elder Shao and Jiang He said almost in unison.

Ms. Liu nodded: "this is not the person I saw."

This is a photo taken by Lu Zhengye when he was released from prison. He has an inch head, a round head, a slightly fatter figure and darker skin. In the ten years in prison, Lu Zhengye is no longer the handsome guy he was ten years ago. At the age of thirty, he has experienced a lot of vicissitudes. Whether it was from Xiao Ai or from the old grandmother's mouth, the back they saw was almost the same as Lu Zhengye.

But the only person who saw the murderer's face said that Lu Zhengye was not the murderer?

"Are you sure?" Shao Lao asked again.

"Sure." Ms. Liu said, "I have 5.2 eyes on my left and right eyes, so there is definitely no problem. I can say responsibly that the person I saw is definitely not this person."

Mr. Shao stood in front of the window of Ms. Liu's living room. The window of Ms. Liu's living room was facing south, and the window of Wang Ziyi's living room was facing north. Although the buildings were a certain distance away, if you stood by the window and looked at them, who was at home? Still can see clearly. Especially at night, under the action of the light, everything around becomes a dark background, and the two people are as obvious as standing under the spotlight.

But this question arises, if the man who is arguing with Wang Ziyi is not Lu Zhengye, who else is he?

"What's the man's age?" Jiang He asked, "Is his hair gray?"

"No." Ms. Liu said, "I'm quite young, maybe 30 or 40 years old, with no white hair."

Hearing Jiang He's question, Elder Shao knew the suspicion in Jiang He's heart. Jiang He suspected that Wei Lingyong might have done it. There is naturally a logic behind such speculation. The death of Wei Lingyong’s wife Wang Ziyi and the disappearance of his daughter Wei Qian can all be attributed to the deformed and crazy love of a husband and a father. However, Shao Lao One thing could deny Jiang He's suspicions.

Ms. Liu categorically said that the man she saw was not Lu Zhengye, but she did not know how to describe the man she saw. This is normal. It's like showing you an obvious photo and asking you to describe him. You don't know how to describe the star's face clearly except for hair and height.

The two bid farewell from Ms. Liu's house.

"Remember what Wei Lingyong told us before he left?" Elder Shao turned to look at Jiang He.

"Say to his wife on his behalf, I love you." Jiang He naturally couldn't forget any details, so he blurted out.

"If he killed his wife, then why did he do it?" Shao Lao asked.

Jiang He was silent for a moment, then said: "He deliberately said this to lead the police astray. However, Ms. Liu said that the man looked younger, and Wei Lingyong looked like an old man in his sixties. It should not be Wei Ling. forever."

Shao Lao nodded, but changed the subject: "Yes, true feelings cannot be hidden, nor can they be faked."

Jiang He remembered that Xu Yiman had said something similar to himself before: "But I don't understand, I read that people are the animals that are best at camouflaging their feelings. Obviously they are two enemies who are behind their backs, but they are smiling when they meet. Obviously two people love each other, but they can't be together because of practical problems, but they say they don't love each other with a stern face. Obviously they are very sad, but they behave lightly."

"There are too many examples like this." Jiang He said, "Seriously, I don't think I can finish it in a few days or nights."

Shao Lao smiled lightly, but said, "Jiang He, this is what you need to learn. People will fake their feelings, but feelings can never be faked. Those two enemies, everyone knows each other's feelings. Hypocrisy. That couple knew in their hearts the other's deep love for them. That sad person, others could see his pretentious calm."

Elder Shao pointed to Jiang He's chest: "You never believe in psychology, you think it's just metaphysics, far less reliable than real materials. I admit this, because the complex changes in people's hearts make me like this The method will fail to a large extent. However, you still have to follow your own heart, which you can call intuition or experience. And human intuition is often terrible.”

"You need to learn this." Shao Lao said.

"Me?" Jiang He asked.

Shao Lao nodded and said, "I'm sixty this year, and one day I can't walk, I can't get out of the scene, and my brain is out of control. I naturally hope that my life will not be wasted, and I naturally hope that someone can learn my method. .I don't know if I can catch Wei Demian, and I don't know if I have the chance to lead the team again, and you are the best candidate."

"Me?" Jiang He shook his head, "I can't even understand complex feelings, let alone understand people's feelings. Although I've been with you during the time I've been with you, I'm sorry for my shallow views, but even if I believe in the important role of psychology in solving crimes, but I am still not a good student."

"No." Shao Shao shook his head and said, "In this respect, you are like a blank piece of paper. If you want to write something on the paper, it is naturally a blank piece of paper. I will write what I think is right. I gave it to you, whether it is wrong or not in the future, the eraser is in your hand, and you can decide what to write and what to smear."

Shao Lao looked at Jiang He sincerely: "I believe that one day, you will find the feelings you have lost for more than 20 years."

"I hope so too." Jiang He nodded.

The two were speechless, speechless all the way.

Back at the police station, Xu Yiman had already made a detailed autopsy report, which was almost the same as what she had seen before. However, after Xu Yiman's in-depth analysis of the length and depth of the wound, she determined that the murder weapon should be a narrow and sharp knife. This kind of knife can be hidden in the sleeve so as not to be discovered. I am afraid that Wang Ziyi did not see the sharp dagger hidden in the sleeve of the murderer and was killed.

There was indeed blood in the glass shards brought back by several people, but the blood was trace amounts, and it was not Wang Ziyi's blood after DNA testing. In other words, the owner of the blood is someone else, who is likely to be the murderer. It's just that if no suspects are caught, the DNA cannot be compared, and it is almost impossible to find one by one from the database.

Not to mention that my country's DNA library itself is not complete, not everyone's DNA is in the database, even if the database happens to have this DNA information, and the population is so large, I don't know if I need to compare it to the year of the monkey and the month of the horse, maybe I can find this. The information is gone, the murderer's son is eighty years old.

The most optimistic situation now is to first lock down a few suspects, and then compare the DNA of the blood on the glass with the suspect's DNA to determine who the blood really belongs to.

Jiang He said to Xu Yiman, "Xu Yiman, compare Lu Zhengye's DNA."

Xu Yiman nodded.

If Lu Zhengye hadn't been there that night, the blood on the glass shards could not belong to Lu Zhengye. If so, it also confirms that what Ms. Liu said is true.

Things suddenly became confusing. According to the logic of the crime consultant, Lu Zhengye should be his client, and the rest of the people are also related to Lu Zhengye. Whether it is Wei Lingyong, Wei Linghui, Wei Qian, Wang Ziyi, etc., they are all people around Lu Zhengye, and they are all people Lu Zhengye may take revenge on.

But until now, it has been found that the person who killed Wang Ziyi was not Lu Zhengye, and the person who quarreled with Wang Ziyi was not Lu Zhengye either. So who is that person? What was the purpose of his killing Wang Ziyi?

Jiang He thought deeply while looking at the countless pieces of glass he brought back.

Suddenly, Jiang He seemed to see something mysterious. He pointed at the glass shard and said, "There is something wrong with this glass shard."

"Is there a problem?" Shao Lao also looked at the glass shard.