Xiang Chenyan has been handling cases for many years, and no criminal's disguise can escape his sharp eyes.

Like He Lianyi, he recognized the girl in front of him at first glance as the girl who was with Feng Yueyang half a year ago.

Her appearance and temperament have changed a lot, but what's inside cannot deceive anyone.

In addition to his rich criminal investigation experience, what he is best at is actually criminal portraits.

The human skeleton and facial features are tall, short, fat, and thin. No matter how superb the camouflage technique is, in front of him, it is like taking off all clothes, with nothing to hide.

He accurately captured the surprise that flitted past the girl's eyes behind her lenses, and he regained his composure in an instant, as fast as he had never appeared before.

It seemed that she also recognized herself.

Shen You'an really didn't expect that the police officer who arrived would be Xiang Chenyan. He solved all major cases. How could he bother to come forward in person for such small cases?

In just a moment, Shen Youan calmed down his emotions and stepped forward calmly: "Officer Xiang."

Xiang Chenyan raised his eyebrows.

Praise for the girl's magnanimity.

Bi Xing's eyes flickered between the two of them.

The two actually knew each other?

Gao Yue was even more surprised as to why Shen Youan had more friends after coming to Chunzhou.

Xiang Chenyan's eyes fell on the bottle of water on the table. He took out a pair of disposable medical gloves from his pocket and put them on neatly. Then he walked over, picked up the bottle of water, opened the lid and sniffed.

Xiang Chenyan frowned.

Outsiders only know that he is an expert in solving cases, but in fact he only relies on his strong physical fitness. For example, his five senses are far superior to ordinary people. This bottle of water seems to ordinary people to be just an ordinary bottle of mineral water, but he smells something different. odor.

Shen Youan knew from the subtle changes in Xiang Chenyan's expression that he had discovered it, and sighed inwardly that it was indeed Xiang Chenyan.

Xiang Chenyan's eyes fell on the vitamin C effervescent tablet on the table again. Only these two items were placed separately.

In a glass next to it, there is half a glass of water. The water is transparent and looks colorless and odorless.

Gao Yucai added: "Officer, pentavalent arsenic has been added to the water. Do you know about pentavalent arsenic? It is an arsenic-containing chemical element with weak toxicity, but once it is combined with vitamin C, it will be micro-organized. The strong reducibility of C reduces it to trivalent arsenic, arsenic trioxide, which is commonly known as highly toxic arsenic.”

Gao Yue pointed to the glass of transparent water: "That's it."

Bi Xing's scalp was numb. It seemed that the person who poisoned the poison had a good knowledge of chemistry, which made it difficult for people to guard against it.

Shen Youan took a step forward: "This dose will not cause death, but inorganic trivalent arsenic forms reactive oxygen species after entering the human body, interacts with sulfur and phospholipids, and the signal molecules produced during the metabolic process are extremely damaging to cells and can easily Inducing cancer cells, University Chemistry published a research paper on related content last September."

The girl is unparalleled in beauty, but what is even more attractive is the confident and calm temperament in her movements.

Bixing swallowed: "Really...really?"

I have been working with Team Xiang for many years and have seen many poisoning cases, but this is the first time I have seen such a roundabout method.

She does not directly kill people, but uses the properties of vitamin C to reduce toxicity, and induces cancer in the victim's body bit by bit through the poison, making the person suffer from the disease.

Without knowing it, he not only harmed others, but also cleared himself of suspicion.

It is enough to show that this murderer is not only thoughtful, but also very vicious in his methods.

Bi Xing looked at the beautiful girl in front of him who was as beautiful as spring flowers and autumn moon. It was hard to imagine that she was suffering from a disease. It was like watching a blooming peony flower decay and die at a speed visible to the naked eye.

This is so cruel.

What Bi Xing could think of, Xiang Chenyan could naturally think of, and even in a short period of time, he thought of more.

Judging from the criminal psychological profile, the murderer is knowledgeable and understands chemistry. She may have read the research paper. Through what channel?

"May I ask, what is your identity...?"

Shen You'an didn't hesitate and blurted out: "I am a freshman at Lanya High School in Qingzhou, and I came to Chunzhou to participate in the winter camp."

Xiang Chenyan pondered.

The murderer and the victim may have the same identity, a student.

Shen Youan called up the surveillance camera in the corridor and showed it to Xiang Chenyan.

Xiang Chenyan raised his eyebrows and took a deep look at the calm-looking girl in front of him.

It's been less than half an hour since the incident happened, and she already has all the clues she can get.

"Yesterday morning at 07:30, the hotel's account manager Li Zonghong secretly entered our room and left after a minute. She took photos or videos at the scene for analysis by the murderer behind the scenes. The murderer behind the scenes saw a vitamin C effervescent tablet in the room. I came up with a wonderful poisoning method. Pentavalent arsenic is colorless, odorless, and has no toxicity. It is easy for ordinary people to be poisoned. But unfortunately, my sense of smell has been different from ordinary people since I was a child. It just so happens that my chemistry scores It’s always been a perfect score.”

Shen Youan spoke calmly and calmly.

Xiang Chenyan glanced at her, a smile flashing across his eyes.

She also did the work of the profiler.

Shen Youan looked directly at Xiang Chenyan and said categorically: "The murderer is someone I know, and she doesn't have a close relationship with me. She should be a member of this winter camp. She is a girl, and her family is very powerful. Officer Xiang, you Do you dare to continue investigating?"

Xiang Chenyan curled his lips, with a deep cold aura.

"Everyone is equal before the law."

He solemnly ordered Bi Xing, who was stunned: "Take Li Zonghong back to the police station for investigation."

Bi Xing responded solemnly, turned around and walked out.

"Classmate Shen, come with me back to the police station to make a record."

Shen Youan nodded: "Okay."

Gao Yue hurriedly said: "I'll go too."

Xiang Chenyan took out his mobile phone to take photos of all the physical evidence, and then collected the physical evidence.

He looked very serious while doing all these trivial things.

The shouting coming from the door did not distract Xiang Chenyan.

Soon Bi Xing appeared at the door of the room, and the person he was struggling with was Li Zonghong.

As soon as Bi Xing went out, he saw someone sneaking around the door. He shouted, but the man turned around and ran away. Bi Xing recognized at a glance that this person was Li Zonghong from the surveillance camera. He went up without saying a word. Caught the man.

Li Zonghong struggled and shouted unwillingly: "Help, it's murder."

Bi Xing snorted coldly: "The police are investigating the case. You are suspected of poisoning. Come to our police station."

Li Zonghong was stunned. Although she had expected it in her heart, she never expected that she would be exposed so quickly. Her face was darker than the bottom of the pot.

"What is the suspicion of poisoning? Comrade police, I was wronged. I am just a hard-working worker and I don't know anything."

"Whether he is unjustly accused or not, you can find out if you come back to the police station with us and investigate."

Li Zonghong suddenly turned his head and looked at Shen Youan.

The girl stood quietly in the sun. She was as beautiful as a mortal. A pair of dark eyes looked at her quietly, without any expression, but it was extremely frightening.

Li Zonghong's scalp was numb and he subconsciously shouted: "Impossible."

Bi Xing asked: "What's impossible?"

Li Zonghong was on the verge of collapse and said without thinking: "It's impossible for her to find out what went wrong?"

Bi Xing looked at Shen Youan in shock.

It was explained so quickly.Before, he thought this case was too bizarre. How could there be such a smart and calm victim? He had always been skeptical, but he was slapped in the face so quickly.

As expected, this manager has evil intentions.

Meng Junzhu heard the commotion and came over, and was dumbfounded when he saw the scene in front of him.

But she quickly calmed down and stepped forward to ask what happened.

Shen Youan explained what happened in a few words.

Meng Junzhu gasped: "Poison... poison?"

No matter how good her mental quality was, she couldn't calm down at all when she encountered something like this, especially when the victim was her favorite student.

She stepped forward quickly and looked Shen Youan up and down: "How are you? If you feel uncomfortable anywhere, the teacher will take you to the hospital now."

Shen You'an shook his head, his calm mood easily calming Meng Junzhu's anxiety.

"I didn't drink. This is Officer Xiang. He is in charge of this case. Now I want to go back to the police station with Officer Xiang to make a record."

Meng Junzhu immediately said: "Police officer, I am Shen Youan's class teacher. This time I brought her to Chunzhou to participate in the winter camp. I have the responsibility of guardianship. I will take notes with you."

Xiang Chenyan had no objection and asked Bi Xing to make a call, and a police car was sent nearby to support him.

Liu Runxi and Gu Bichen heard the noise and walked out of the room, just in time to see a group of people walking towards them.

Liu Runxi recognized Xiang Chenyan at a glance: "Uncle Xiang."

Xiang Chenyan was also a little surprised, but considering that Shen Youan came from Qingzhou, it was no wonder why Liu Runxi was here.

"Uncle Xiang, what happened? Ann her..."

Shen Youan shook his head: "I'm fine. I just went to the police station to make a note and will be back soon."

Liu Runxi went back to the room and picked up her mobile phone, without saying a word that she wanted to go with Shen Youan.

Gu Bichen stood there, thoughtfully watching the group of people walk away.

In the hotel lobby, Guo Hui came back from making a phone call and saw a group of people walking towards her.

Li Zonghong was escorted by a tall man who had just been taken away by Gao Yue, with a very humiliating posture.

Guo Hui's pupils shrank suddenly, and she quickly stepped forward and shouted: "What do you want to do in broad daylight? Release Manager Li quickly, or I will call the police immediately."

Guo Hui held up her mobile phone.

Li Zonghong lowered his head and did not dare to say a word.

Gao Yue sneered: "It's not shameful to show off a big sword in front of Guan Gong."

When the student pointed at her nose and mocked her, Guo Hui's face almost turned crooked with anger: "You are simply unreasonable."

Gao Yue spread his arms and said, "These two are police officers from the criminal police detachment. Aren't you looking for the police? Tell these two police officers your grievances?"

Guo Hui was stunned for a moment, police?

The front desk staff thought Manager Li was a little strange, but they were shocked when they heard Gao Yue's words.

Did Manager Li commit a crime?

Bi Xing said with a smile: "If you obstruct police law enforcement, you will be punished by public security management. If the circumstances are serious, you will be held criminally responsible in accordance with the law."

As Bi Xing spoke, he took out his ID card from his arms with his free hand and waved it in front of Guo Hui.

"Did you see clearly?"

Guo Hui's pupils suddenly shrank, and she subconsciously took a step back. She was so embarrassed that she didn't dare to say a word.

Gao Yue snorted coldly. When he passed by her, he lowered his voice and said, "Li Zonghong is in trouble. Do you think you can run away?"

Appreciating Guo Hui's panic expression with satisfaction, Gao Yue left with satisfaction.

The person who took the notes for Shen Youan and Gao Yue was a gentle policewoman.

Li Zonghong was taken into the interrogation room and interrogated by Bi Xing.

As soon as Li Zonghong entered, he explained everything.

Yesterday afternoon, a stranger called her and threatened her with her husband's gambling debts, asking her to do something for her.

Li Zonghong agreed in a moment of enthusiasm.

The target of the other party is Shen Youan, and he wants her to observe Shen Youan's daily habits. She has long had a grudge against Shen Youan in her heart. She sneaked into her room when everyone was not around the day before. In fact, she didn't know that she had violated the rules. What is the reason for professional ethics?

Time was urgent, so she didn't bother to take a closer look and just recorded a video in a hurry.

I didn’t expect this video to be of great use.

She sent the video to the email address designated by the other party.

The other party did not reply, but an hour later, she received a call from her husband, a gambler, thanking her for helping clear the 50 debt.

There is still a debt of 150 million remaining.

Li Zonghong didn't expect that one video could bring such huge benefits, and he was very excited.

At eleven o'clock last night, when everyone was asleep, an errand boy from the same city sent her an anonymous courier. There was only one packet of powder in it, weighing no more than [-]g.

The man told her to find an opportunity to add something to the water Shen Youan drank every day.

Li Zonghong was afraid that it was poison. If it poisoned someone, her life would be over.

The other party told her that it was not poison and reassured her.

To be cautious, Li Zonghong mixed some medicinal powder into water and fed it to a stray cat near the community. She observed the cat overnight and found that the cat was alive and kicking the next morning.

Li Zonghong was relieved. This thing turned into water, was colorless, odorless and not poisonous. Although she didn't know what the other party's intention was, she was relieved that no one was killed.

So the next day, she took advantage of her position and sent mineral water mixed with unknown powder to Shen Youan on the pretext that the mineral water was not replenished.

Everything worked seamlessly.

She thought hard and couldn't figure out which joint was wrong.

While Li Zonghong was being interrogated here, the criminal police went to Li Zonghong's home and workplace and began to conduct searches.

Her mobile phone and accounts under her name were also searched for evidence.

According to Li Zonghong's testimony, a contact was found on her mobile phone, and the police immediately traced the number. As expected, it was an anonymous phone card.

However, now that criminal investigation techniques are advanced, it didn't take long for the police to identify the owner of the phone card.

He was a butcher in the vegetable market. He didn't know anything about it. He only said that he picked up a mobile phone in the trash can in the vegetable market. It looked like it was new, so he picked it up and used it for himself.

The police immediately reviewed the surveillance near the trash can and finally successfully identified the suspect.

A man in his 30s, tall, with a strong sense of anti-reconnaissance, his face was never shown during surveillance.

Xiang Chenyan's team has solved various cases over the years. This case is actually very simple to investigate. In the era of big data, no one can commit a perfect crime.

Bi Xing stared at the surveillance screen. The man's figure walked into the door of the luxurious hotel.

"Bache's Hotel."


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