As soon as he saw Lu Yan, Yu Zheng smiled and stretched out his hand: "Miss Lu, you don't remember me, but I still remember you. Last year, your instructor gave a lecture at the physiology conference, and you were the secretary next to you. The courseware for that class was well done. The level is first-class, and I have a deep memory. Speaking of which, the basic subjects of anesthesia and criminal psychology are related to physiology, and you and I are also half peers."

No wonder it looks so familiar.

She hurriedly shook hands with Yu Zheng: "Hello, Dr. Yu."

It's also strange, her memory should be focused on certain aspects. She can't remember Dr. Yu's name, but she can remember the content of the last lecture by her tutor, the title is "The Arousal Mechanism of the Cerebral Cortex", a very basic class. At that time, it seemed that Dr. Yu came over to discuss with the instructor for a long time after class, and the topic always revolved around the autonomic nervous system response of psychopaths.

If I remember correctly, this person is a prodigy in the field of criminal psychology.

Jiang Chengyi said, "Dr. Yu, since we have time in the evening, we might as well have a meal at the Chinese restaurant in the hotel opposite."

Yu Zheng echoed: "That's what it means."

After leaving the branch, the three went to the famous Chinese restaurant in the opposite hotel to take a seat. The waiter quietly approached and presented the menu.

Jiang Chengyi took the menu, leaned back on the chair, and started ordering.

Lu Yan took off her jacket, remembered the phone call just now, and wanted to ask how Jiang Chengyi responded to Jiang's mother. Considering that Yu Zheng was beside her, she didn't ask.

The restaurant is very quiet, and the light music flows into the ears, giving people a wonderful feeling of being groped for no reason.

Yu Zheng looked at Lu Yan, and Lu Yan also looked at Yu Zheng. After a while, seeing that Yu Zheng had no intention of opening her mouth, she smiled apologetically and took out the notes she made earlier to browse.

Yu Zheng crossed his arms with his hands, his eyes stopped for a moment on the notes on Lu Yan's notebook, and then he looked at Lu Yan with a smile: "Miss Lu, I looked through Deng Man's files and noticed that someone had been there for seven years in a row. An anonymous letter was sent to the Anshan District Bureau. Some time ago, when I met a person pretending to be Deng Man, the witness happened to be named Lu. I remember that the witness was a good friend of Deng Man in high school. Let me take the liberty of Ask, is the witness who wrote the anonymous letter Miss Lu?"

Jiang Chengyi was still looking at the menu, and after hearing this, he looked up at Yu Zheng.

Lu Yan was startled.

Yu Zheng's eyes shot straight into her heart like a ray of sunshine through the dark jungle.

After staring at each other for a while, her taut back slowly loosened, her eyelashes lowered, and she admitted frankly, "Yes."

There was an illusion when speaking, the other party seemed to open a wound that had been scabbed for a long time, cut off the rotten flesh, and let new flesh grow.

Seeing that Lu Yan coped with ease, Jiang Chengyi heaved a sigh of relief.

Yu Zheng showed admiration: "Miss Lu, after you sent an anonymous letter, the police intervened in Deng Man's case twice, but unfortunately both times ruled out Deng Man's homicide. In addition, eight years Later, even though the police had so many clues, they still failed to clarify the truth of the year, which shows how complicated the case was. However, as a friend of Deng Man, Miss Lu never gave up on investigating this matter. This perseverance I am very impressed. Miss Lu, judging from your educational background and resume, your learning and memory skills are excellent, but the most outstanding one should be your observation ability. Now the hunt for the murderer has reached the stage of white-hot, let me A sudden request—"

Lu Yan looked at Jiang Chengyi sideways, and quickly saw the default attitude in his eyes. It was obvious that Jiang Chengyi recognized Yu Zheng's professional ability and accomplishment, so she felt relieved and said, "Dr. Yu, please speak. "

"Team Jiang told me part of what happened back then, but looking back on the whole case, I still want to use Miss Lu's observation ability to take me back to Class No. 7 of Middle School eight years ago, use your memory, use your eyes and senses , In the next period of time, think back carefully, what do you think about the then head teacher, Teacher Zhou."

Lu Yan closed her eyes and thought back, which was also strange. Every time she thought of Teacher Zhou, the most prominent impression was when he was standing on the podium in a white shirt.

The sun was shining brightly, with tiny dust floating in the light. His voice was low and mellow, echoing in the classroom one after another.

She slowly recalled: "Mr. Zhou is a very patient teacher with a gentle temper and treats students equally. Because of his outstanding professional ability, he is rated as an excellent teacher every year. He teaches physics, and many difficult problems have been discussed by him. As soon as he explained it, it became easy to start, so the students admired him at the time. I remember Deng Man's physical performance was not very good in the first and second years of high school, and it gradually improved in the third year of high school. "

Yu Zheng's voice became soft: "Did Mr. Zhou feel emotionally unstable during the three years of teaching in high school?"

Lu Yan closed her eyes and recalled for a long time: "No, Teacher Zhou is always in a stable mood."

"A person who is good at disguising." Yu Zheng took out a small notebook the size of a palm and a pen from his arms.

"During Zhou Zhicheng's life, he encountered at least three major emotional setbacks. The first time was his wife's accidental miscarriage in 2000. The second time was when his wife was in a car accident and became a vegetative state and lay in bed for three years. The third time It was the death of the wife. Of course, the third incident happened in September 2010, when you graduated and left school—"

He changed the topic and asked Jiang Chengyi: "Jiang team, when you introduced the information of Zhou Zhicheng's wife Lin Chunmei just now, I found that her physique was very similar to the later victims, both 166-167, about 50kg, and her appearance was also very beautiful. I don't know if you have checked - um, I mean, was Lin Chunmei's cause of miscarriage at that time, was it a spontaneous abortion, or was there some other cause?"

Jiang Chengyi said: "We are investigating, but Lin Chunmei's parents went back to their hometown to visit relatives. They are not in the city at the moment. Zhou Zhicheng is here... Until we get further clues, we don't want to panic. The news from the neighbors is that Lin Chunmei was alive. Like her parents, she has a more aggressive and domineering personality and is not easy to get along with, and in terms of popularity, she is far less good than her husband Zhou Zhicheng."

Yu Zheng nodded with some regrets: "If Lin Chunmei is greatly influenced by the family, it is very likely that he is a strong personality like his parents. Even if he has children, he may not be a qualified mother. But Zhou Zhicheng's personality portrait There are some discrepancies with the portrait of the criminal, no matter what aspect... it doesn't quite match, it would be great if you could know about Zhou Zhicheng's childhood experiences."

He crossed his fingers to his lips and remained silent for a long time, the usual idle smile on his face was gone, replaced by deep confusion.

After a while, he looked up at Jiang Chengyi: "Team Jiang, are you sure Zhou Zhicheng has no children?"

"According to the information I have learned so far, no." Jiang Chengyi knew that Lu Yan was hungry, and as soon as the dishes came up, he scooped up the soup for Lu Yan. "Also, even if Zhou Zhicheng has children, he married in 1997, even if he had been in that year. With a son, he will grow up to 19-20 years old this year, but the murderer can move between city b and city s, buy hacking software that invades websites, transfer corpses, satisfy the wishes of victims, and arrange the scene. All these are required. Strong economic power. And 20-year-olds may have criminal motives, but are unlikely to have these practical conditions.”

Yu Zheng patted his forehead and showed a self-deprecating smile: "Oh. When I was looking at Lin Chunmei's photo just now, I suddenly had inspiration. I always felt that Deng Man was not the origin of all this, but Lin Chunmei. Look, there are a lot of things that contradict my reasoning."

He pondered for a while: "Team Jiang, I agree with your practice of focusing your investigation on the people and things of No. 7 Middle School. In any case, I will wait for your further investigation. In addition, I would like to add, I am very confident in my professional ability, and I believe there are some key links missing here.”

Jiang Chengyi's movements stagnated for a while, and after thinking for a few seconds, he nodded.

After the meal, Yu Zheng talked about his happiness, and until he got into the car, he was still discussing with the two about the criminal's brain's shortcomings in controlling emotions and behavior and the pcl-r scale.

After seeing Yu Zheng away, the two got into the car, Jiang Chengyi said to Lu Yan, "My mother is still waiting for you at Yuheng Plaza, let's go."

Before Lu Yan answered, the phone rang, and it really was Mother Jiang.

"Yanyan, when are you coming over? This season's chanel is so powerful, there are many styles suitable for young ladies, both elegant and generous. And your good friend Miss Tang, auntie likes to get along with young people the most, If she's free, come and play together."

Lu Yan glanced at Jiang Chengyi, and seeing that he didn't object, she said, "Okay, auntie, we've already come, I'll try to call Tang Jie."

Soon we arrived at Hengyu Plaza.

Tang Jie seemed to be shopping at a nearby mall and arrived earlier than her.

All of a sudden, two heavyweight customers came, and Sa hurriedly led them into the VIP room inside.

Jiang Chengyi was bored, sitting on the single sofa and playing with his mobile phone.

Seeing that Lu Yan was only giving her and Tang Jie a reference, Jiang's mother was very dissatisfied: "Don't save money for Jiang Chengyi, his salary is low, but the annual dividend of the shares his grandfather left him is very considerable, you only need these clothes. If you like it, just buy it.”

Before he finished speaking, Jiang Chengyi remembered something, took out the wallet from his arms, took out one of the cards, and handed it to the sa next to him.

Tang Jie's stomach almost hurt from laughing, so she secretly pulled Lu Yan aside: "Jiang Chengyi has always been generous to you, but I said, your mother-in-law is really a wonderful person."