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

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

Appearance and temperament have changed a lot, but the things in the bones can't deceive people.

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

The facial features of the human skeleton are tall, short, fat and thin, no matter how superb the camouflage skills, in front of him, they are also like clothes, and there is nothing to hide.

He accurately captured the surprise of the girl's eyes flying behind the lenses, and returned to calm in an instant, as if he had never appeared.

It seems that she recognizes herself too.

Shen Youan really didn't expect that the policeman who came would be Xiang Shenyan, he solved all big cases, how could he come forward in person for such a small case.

But in an instant, Shen Youan restrained his emotions and stepped forward calmly: "Officer Xiang."

Xiang Shenyan raised his eyebrows.

Praise for the girl's openness.

Bi Xing's gaze wandered between the two.

The two actually know each other?

Gao Yucao was even more surprised, why after coming to Chunzhou, Shen You'an had more friends.

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

Xiang Shenyan's eyebrows frowned.

Outsiders only know that he judges cases like a god, but in fact, he only relies on strong physical fitness, for example, his five senses are far beyond ordinary people, this bottle of water is just an ordinary bottle of mineral water in the eyes of ordinary people, but he smells different smells.

Shen Youan knew from the subtle change in Xiang Shenyan's expression that he had found out, and sighed in his heart that it was indeed Xiang Shenyan.

Xiang Shenyan's gaze fell on the vitamin C effervescent tablets on the table again, only these two things were put together separately.

In a glass next to it, there is a small half cup of water, the water is transparent and clear, and it looks colorless and tasteless.

Gao Yucao added, "Officer, pentavalent arsenic has been added to the water, do you know pentavalent arsenic? It is an arsenic-containing chemical element with weak toxicity, but once it is fused with vitamin C, it will be reduced to trivalent arsenic by the strong reduction of microC, arsenic trioxanedide, which is commonly known as highly toxic arsenic."

Gao Yucao pointed to the clear glass of water, "This is it."

Bi Xing's scalp is numb, it seems that the person who poisoned him knows a lot about chemistry, which makes people unable to prevent it.

Shen Youan took a step forward: "This dose is not lethal, but inorganic trivalent arsenic enters the human body to form active oxygen, and sulfur and phospholipids interact with the signaling molecules produced in the metabolic process, which is extremely damaging to cells and can easily induce cancer cells, according to a research paper published by University Cherry in September last year."

The girl is beautiful, but what is more attractive is her confident and calm temperament.

Bi Xing swallowed his saliva: "Really...... Really?"

I have followed the Xiang team to handle cases for many years, and I have seen a lot of poisoning cases, but it is the first time I have seen this kind of method in a roundabout way.

She did not directly ask for human life, but used the properties of vitamin C to restore toxicity, and induced cancer in the victim's body little by little through poison, making people suffer from the disease.

God is unaware, not only harming people, but also choosing his own suspicions.

It is enough to see that this murderer is meticulous and his methods are still very vicious.

Bi Xing looked at the beautiful girl in front of him like spring flowers and autumn moon, and it was hard to imagine the picture of her being haunted by illness, as if watching a blooming peony flower decay and die at a speed visible to the naked eye.

It's cruel.

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

Judging from the criminal psychology profile, the murderer is very knowledgeable and understands chemistry, she may have browsed that research paper, and in what channel?

"What is your identity, ......?"

Shen Youan did not 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 Shen groaned.

The murderer may be the same as the victim, the student.... net

Shen Youan called up the monitoring in the corridor to show Xiang Shenyan.

Xiang Shenyan raised his eyebrows and looked deeply at the calm girl in front of him.

Less than half an hour after the incident, she had all the clues she could get her hands on so far.

"Yesterday morning at half past seven, the hotel's account manager Li Zonghong secretly entered our room, left a minute later, she took pictures or videos at the scene, to the murderer behind the scenes, the murderer behind the scenes saw that there was a vitamin C effervescent tablets in the room, so he came up with a wonderful poisoning method, pentavalent arsenic is colorless and odorless, and there is no toxicity, ordinary people are very easy to be tricked, but unfortunately, I have a different sense of smell since I was a child, and it just so happens that my chemistry score has always been a perfect score."

Shen You'an's tone was calm and eloquent.

Xiang Shenyan glanced at her, and a smile flashed across his eyes.

She also did the job of a profiler.

Shen Youan looked directly at Xiang Shenyan, and said categorically: "The murderer is someone I know, and he doesn't have a deep relationship with me, he should be a camper of this winter camp, she is a girl, and her family is not small, Officer Xiang, do you dare to continue to investigate?"

Xiang Shen hooked his lips, and the cold breath was deep.

"Everyone is equal before the law."

He told the stupid Bi Xing in a deep voice: "Take Li Zonghong back to the police station for investigation."

Bi Xing responded solemnly, turned around and walked out.

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

Shen Youan nodded: "Okay."

Gao Yuxu hurriedly said, "I'll go too."

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

He looked very serious when he was doing all these trivial things.

The shouting at the door did not distract Xiang Shenyan.

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

As soon as Bi Xing went out, he saw a person sneaking around the door, he shouted, who knew that the person turned around and ran, Bi Xing recognized this person at a glance was Li Zonghong in the surveillance, and he arrested the person without saying a word.

Li Zonghong struggled, unwilling to shout: "Help, kill someone."

Bi Xing snorted coldly: "The police are investigating the case, you are suspected of poisoning, come with 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, and her face was darker than the bottom of the pot.

"What is the suspicion of poisoning? Comrade policeman, I have been wronged, I am just a conscientious worker, and I don't know anything."

"Whether it's wronged or not, go back to the police station with us to investigate clearly."

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

The girl stood quietly in the sun, not as beautiful as a mortal, a pair of dark eyes looked at her quietly, there was no expression, but it was extremely frightening.

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

Bixing asked, "What can't be?"

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

Bi Xing looked at Shen Youan in shock.

Confessed so quickly.

Before, he thought that this case was too bizarre, how could there be such a smart and calm victim, and he had always been skeptical, but he didn't know that he would be slapped in the face so soon.

This manager is indeed harboring evil intentions.

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

But she quickly calmed down and stepped forward to ask what was going on.

Shen Youan explained what happened in a few words.

Meng Junzhu gasped: "Cast ...... Poisoning?"

No matter how good her psychological quality is, when she encounters this kind of thing, especially the victim, she still likes it the most

Huan's students couldn't calm down at all.

She stepped forward quickly and looked Shen You'an up and down, "How are you?" If there is anything uncomfortable, the teacher will take you to the hospital now."

Shen Youan shook his head, and his calm mood easily soothed Meng Junzhu's anxiety.

"I didn't drink it, this is Officer Xiang, he is in charge of this case, and 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 head teacher, this time I brought her to Chunzhou to participate in the winter camp, I have the responsibility of guardianship, I will go with you to make a record."

Xiang Shenyan did not object, and asked Bi Xing to call, and a police car was sent nearby to support.

Liu Runxi and Gu Bichen came out of the room when they heard the movement, just in time to see a group of people coming in a mighty way.

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

Xiang Shenyan was also a little surprised, but thinking that Shen You'an was from Qingzhou, it was not surprising why Liu Runxi was here.

"Uncle Xiang, what's going on? Ann she'......."

Shen Youan shook his head: "I'm fine, just go to the police station to make a record, and I'll be back soon."

Liu Runxi went back to the room and picked up his mobile phone, and without saying a word, he wanted to accompany Shen You'an.

Gu Bichen stood in place, watching the group walk away thoughtfully.

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

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

Guo Hui's pupils shrank suddenly, and she hurriedly stepped forward and shouted, "What do you want to do in broad daylight? Hurry up and let Manager Li go, or I'll call the police immediately."

Guo Hui held up her mobile phone.

Li Zonghong hung his head and didn't dare to say a word.

Gao Yucao sneered: "It's not a shame to play with a big knife in front of Guan Gong."

was sarcastically pointed at the student's nose, Guo Hui's face was about to be crooked: "You are simply unreasonable."

Gao Yucao stretched out his arms, "These two are officers of the criminal police detachment, aren't you looking for the police?" Tell these two officers about your grievances?"

Guo Hui was stunned for a moment, police?

The staff at the front desk thought that Manager Li was a little strange, and was startled when they heard Gao Yucao's words.

Is Manager Li guilty of this?

Bi Xing smiled and said: "Obstruct the police from enforcing the law, give public security administrative punishments, and if the circumstances are serious, investigate criminal responsibility in accordance with the law."

Bi Xing said, his free hand took out the document from his arms and shook it in front of Guo Hui.

"Do you see clearly?"

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

Gao Yucao snorted coldly, and when she passed by her, she lowered her voice and said, "Li Zonghong has a big deal, do you think you can run?"

Satisfied with Guo Hui's flustered expression, Gao Yucao left satisfied.

The one who made the transcripts for Shen Youan and Gao Yuxu was a gentle police lady.

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 husband with gambling debts and asked her to help with something.

Li Zonghong agreed with a hot head.

The other party's target was Shen You'an, asking her to observe Shen You'an's daily habits, she had a grudge against Shen You'an in her heart, and the day before when everyone was away, she slipped into her room, in fact, she didn't know why she violated professional ethics and did so.

Time was urgent, she didn't care about taking a closer look, so she just hurriedly recorded a video.

I didn't expect this video to come in handy.

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

There was no reply, but an hour later, she received a call from her gambler husband, thanking her for helping to clear her debt of half a million.

There are still 1.5 million left

of debts.

Li Zonghong didn't expect that a video could be exchanged for such a big benefit, and he was very excited.

At eleven o'clock last night, when everyone was asleep, an errand in the same city sent her an anonymous courier, which only contained a packet of powder, and the weight did not exceed .

The man told her to find an opportunity to add things to the water that Shen You'an drank every day.

Li Zonghong is afraid that it is poison, if she poisons someone, her life will be over.

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

Li Zonghong was cautious, got a little powdered water and fed the stray cats near the community, she observed all night, and the cat was alive and kicking the next morning.

Li Zonghong was relieved, this thing is colorless, tasteless and not poisonous, although she doesn't know what the other party's intention is to do this, but she is relieved that she can't make a mistake.

So the next day, she took advantage of her position to send the mineral water mixed with unknown powder to Shen You'an under the pretext that the mineral water was not replenished.

Everything was seamless.

She couldn't figure out which joint was wrong.

While interrogating Li Zonghong here, the criminal police went to Li Zonghong's home and work unit and began to conduct a search.

and searched for evidence of her mobile phone and accounts under her name.

According to Li Zonghong's testimony, a contact was found in her mobile phone, and the police immediately traced the number, and not surprisingly, it was an anonymous calling card.

However, now that criminal investigation technology is developed, it didn't take long for the police to lock down the owner of the calling card.

It was a butcher in the vegetable market, and he didn't know what to ask, but he only said that he picked up a mobile phone in the trash can of the vegetable market, and when he saw if the mobile phone was new, he picked it up and used it himself.

The police immediately reviewed the surveillance near the trash can and finally succeeded in locking up the suspect.

A man of about thirty years old, tall and with a strong sense of anti-reconnaissance, did not show his face during the surveillance from beginning to end.

Xiang Shenyan's team has solved various types of cases over the years, this case is actually very simple to investigate, and in today's era of big data, no one can commit a perfect crime.

Bi Xing stared at the surveillance footage, and the figure of the man walked into the door of the luxurious hotel.

"Hotel Becky."