Jiang Cheng pushed open the door of the hall and walked in, swept around and didn't see the shadows of Wang Qian and Liu Yong, but noticed Xiao Jingyao who was sitting not far away chatting with his colleagues, he strode up to her and shouted, "Yaoyao." ”

Xiao Jingyao followed the prestige, looked at the arrival, and quickly stood up, with a burst of concern. "Why is your face so bad, is it that you haven't rested well. ”

One of the colleagues around me said, "Team Jiang, your girlfriend is good to you." ”

Jiang Cheng casually picked up the document on the table and knocked him on the head. "What nonsense, go to work. ”

After saying that, the rest of the colleagues smiled, dispersed, and began to busy themselves with the work at hand.

Jiang Cheng seemed to think of something, and said sideways: "Introduction, Yaoyao, this is the psychologist He Yan." Lao He, my sister Xiao Jingyao. ”

Xiao Jingyao took a few steps forward and stretched out her hand: "Hello, Xiao Jingyao." ”

The person on the other side did not respond for a long time with his hand in his pocket, but only nodded slightly, and an atmosphere of embarrassment filled the air.

Seeing this, Jiang Cheng broke the embarrassment and said to her: "Others are like this, don't care." ”

She withdrew her hand and looked at He Yan who met for the first time, and the person in front of her gave people a strong sense of alienation during the first meeting.

"Call Wang Qian and Liu Yong to the conference room for a meeting. Jiang Cheng said to a colleague passing by him.

"Yes. ”

Jiang Cheng raised his hand and rubbed her hair, and his tone softened a lot: "You sit down first and wait for me for a while." ”

"It's okay, you get busy first. ”

Jiang Cheng took two steps, turned around, and said to He Yan, "Don't go in?"

He Yan said nonchalantly: "I won't participate." ”

"It seems that there is something unreasonable, hurry up. ”

He Yan muttered in a low voice that he was not, and Xiao Jingyao on the side heard him laugh.

"It has been three days since the investigation of the corpse mutilation case, and no progress has been made so far, but it has greatly increased the difficulty of the work, the identity of the deceased is unknown, there is no progress at all in the case, and the case has a huge impact in the city. Jiang Cheng, who was sitting at the conference table, looked at everyone sitting with a blank expression.

The others bowed their heads solemnly and remained silent.

He looked at the indifference of the people under him, and said, "You are all dumb, tell me what you think." ”

Song Bin left from his seat, stood in front of the whiteboard and pointed to the mutilated corpse in the photo on the right with a pen, and said: "The deceased Wang Li, 23 years old, the manager of the coffee shop, passed by the scene of the corpse before his death, and was divided into three places to throw the body, which was packed in a black plastic bag, and the head was found in the Lanjiang River, and the subsequent corpses were found in the Wisteria Garden and the West Ring Garbage Transfer Station, and no evidence left by the murderer was found at the scene. Before and after the incident, residents of the community saw the murderer, but did not see the murderer's face, and the surveillance in the community was only a decoration, and it was not displayed. At present, no reports have been received from the public, and the fingerprints on the body bag have also been destroyed by the murderer. He pointed to the photo on the left and said: "A large amount of Houttuynia cordata injection was detected in Wang Li's body, and another deceased, Chen Yuan, was injected with an air needle." The two deceased have one thing in common, the ring on the ring finger is not the same size, the letters on the ring are the same as the letters engraved on the wrist, and there are blood stains on the walls, bathrooms, and teacups at the scene of the crime, and from the test report, the blood stains are the deceased Chen Yuan. ”

"Did the deceased be injected into the air and then the murderer stabbed the deceased with a knife?" Ms. Wang said.

Song Bin said: "The report has not yet come out, and it is impossible to determine whether the fatal injury was an air needle or a knife wound. ”

"What kind of murder weapon is used? Jiang Cheng asked.

"It's more likely that the blade is thin and sharp, and the murder weapon hasn't been found yet. “

"Could it be a love killing, the murderer followed and tailgated to the house and carried out the killing. ”

Wang Qian replied: "There is no connection between the two deceased, Wang Li's life is chaotic, Chen Yuan's social relationship is simple not long after graduation, it is unlikely that he will have a grudge with others, and the two are not from the same world at all." ”

He Yan interjected: "From the perspective of criminal psychology, criminals do not necessarily have to have a specific criminal motive to commit crimes. ”

"Maybe it's just a momentary impulse, most of the murderers of such serial murders have received strong psychological stimulation, and negative emotions are not relaxed, resulting in psychological distortion. Judging from the current society, psychological crimes account for 35 percent, including mental pressure, social pressure, and so on. ”

"Judging from the situation of the murderer's corpse, the method is not professional, but the murderer's psychological quality is strong. ”

Jiang Cheng asked: "The allergic reaction of Houttuynia cordata injection is too great, and if it is serious, it will lead to shock, hasn't the Food and Drug Administration issued a suspension of use a few years ago?"

He Yan said: "It is only restricted, and it has not completely bid farewell to the market, and only secondary and above medical institutions can use it." ”

Chen Yong asked puzzledly: "There are many adverse reactions of traditional Chinese medicine preparations?"

He Yan, who was sitting on the side, said: "Most of the medicinal materials used in traditional Chinese medicine injections come from plants, and the ingredients contained in them are directly related to the content, origin, climate, environment, growth period, processing method, etc., and the process requirements are also high. ”

Jiang Cheng listened carefully to the speech and followed his train of thought, "It will be difficult to break through the loopholes in the case for a while, so we might as well change our direction and continue to look for clues at the scene." ”

Liu Yong answered: "There was a heavy rain yesterday, and the traces of the scene have long been washed away. ”

He Yan said: "With the Wisteria Garden as the center, it is 23 kilometers away from the garbage transfer station, and it is also 23 kilometers away from the Lanjiang River. ”

The rest of the people couldn't guess what he meant, and Jiang Cheng asked on behalf of everyone, "Wisteria Garden is the scene of the crime?"

He Yan said unhurriedly: "Not bad." ”

"Why so sure. ”

He Yan explained: "The viaduct from the Lanjiang River to the West Ring Road is newly built, and the traffic flow is not very large, plus there is surveillance on the highway, so the murderer will not risk taking this road." Throwing corpses from the Lanjiang River to the Wisteria Garden and the West Ring is obviously untenable......"

"How?"

"There is a section of the Lanjiang River to Wisteria Garden is a dirt road, plus the urban road construction, it will be delayed for nearly half an hour, at that time, after the body is dumped, the time to go to the West Ring Road is far from enough, and the day of the body is thrown at the stadium at night. ”

"What if the murderer threw the body during the day. ”

"That's even more unlikely, because the dump is always working during the day and doesn't leave until 7 p.m. ”

Jiang Cheng said solemnly: "The case has a certain impact in the society, in order to avoid causing panic, it is forbidden to say one more word to the media, the above has already issued an order, this case will be solved within a week, if you want it to become an unsolved case or a case that cannot be solved, it depends on you, if the case cannot be solved, you will take off your police uniform and go home to farm." ”

"Team Jiang, there was a murder case in the garden community. Xiao Qin, the officer on duty, pushed open the door of the false conference room and interrupted the meeting.

"Today's meeting is here first, Wang Qian, Liu Yong, you continue to follow up on this, and Binzi will go to the scene with me. ”

"Yes. ”

"Yes. ”

Jiang Cheng walked out of the conference room and saw Xiao Jingyao sitting in the hall, turned around and returned to the conference room, "Lao He, do me a favor and help me send Yaoyao home." ”

He Yan quickly and neatly refused: "She is not within the scope of my work." ”

"Do me a favor. ”

"Your girlfriend?"

"It's not. Jiang Cheng didn't wait for him to speak, and said, "I'm leaving." ”

A minute later, Xiao Jingyao appeared in the conference room, the man leaning on the table and looking at the photo on the whiteboard, she stood to his left and was silent.

He Yan's gaze moved to her, and his dark eyes looked at her calmly, "Jiang Cheng's girlfriend." ”

She didn't expect him to ask such a question, she was stunned, and then came back to her senses: "No." ”

"That's right, when the police are busy, I don't have time to have a girlfriend. ”

"Thank you for taking me home. Xiao Jingyao thanked him in advance.

He Yan said lightly: "Room 102, 23rd Floor, Building 5, Unit 2, No. 108, Biyuan Community" After speaking, the key was placed on the conference table, and the person left.

Xiao Jingyao, who remained in the conference room, thought about what he said suspiciously.

At ten o'clock in the evening, Jiang Cheng returned to the police station and saw Xiao Jingyao in the hall, and was stunned for a moment, "You didn't go back?"

"Nope. ”

"What about the kid?"

Xiao Jingyao knew who he was talking about, "Let's go." ”

Jiang Cheng scolded He Yan fiercely in his heart.

"Let's go, let's go back first. After walking two steps, Jiang Cheng stopped and asked, "Where is the key?"

"What key?"

Jiang Cheng sighed and walked to the conference room with a key lying alone on the table.