Four hundred and fortieth eight chapters - deadly flowers (3)
Chen Bai obviously didn't believe what Yang Xu said, but Yang Xu looked indifferent.
"Who said that a good student can't go to an Internet cafe to stay overnight? Besides, I'm a doctor now. Is there anything wrong with a thirty-year-old man who has no other hobbies and just goes to an Internet cafe to play games during his break?"
Chen Bai nodded. After all, there is no evidence now, so they can't do anything to Yang Xu.
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"Yang Xu, can we go to your laboratory and have a look?"
Chen Bai knew that Yang Xu had his own laboratory, and Zhang Song and others died of poisonous hemlock poisoning, so Chen Bai decided to visit Yang Xu's laboratory.
"Isn't this... not good?"
Yang Xu was a little hesitant, but it was precisely because of Yang Xu's hesitation that Chen Bai became more determined to go and see it.
"Don't worry, I don't understand any of your experiments. I just want to see what the doctor's laboratory is like. By the way, I have some questions to ask you."
"All right!"
Although Yang Xu was a little reluctant, he still took Chen Bai and Da Binzi to his laboratory.
"Officer, I know what happened to Zhang Song and the others. We feel very sorry that something like this happened, but things in the world are like this. We can't predict who will come first tomorrow or the accident. The only thing we can do is
That is to say, we can only enjoy our current life.”
After Yang Xu finished speaking, he opened the door of the laboratory. Chen Bai saw that there were not only a lot of experimental equipment, but also bathrooms and toilets.
"It's nothing. If you were admitted to college at the age of fifteen, completed graduate school at the age of seventeen, and got a doctorate at the age of eighteen, you would also have these things."
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"Yang Xu is not a fool. If he really uses poison hemlock to kill people and puts it openly in the laboratory, then he is really sick."
After speaking, Chen Bai took out a bottle of ointment in his hand.
"Teacher Chen, what is this?"
"I took this from Yang Xu's desk. This kind of thing has no production date or label. It looks like it is homemade. I just opened it secretly and smelled it, and I felt that it contained poisonous hemlock."
Da Binzi was a little surprised. He took the bottle of ointment and looked at it carefully, and asked with some doubts.
"This thing looks like a skin care product no matter how you look at it?"
"Poison hemlock is most commonly used in trauma ointments, because the ingredients in poison hemlock can help people's wounds heal quickly. Let's take it back and have a look! We still have a lot of things to investigate now, and Yang Xu definitely hasn't seen this before.
It’s that simple.”
After returning to the police station, Chen Bai immediately gave the things to Mubai's people for testing. After all, their people were all in Aranya and could not come back.
"Consultant Chen, you guessed right that this does contain poison hemlock."
Chen Bai nodded, but it was hard to say whether Yang Xu was the murderer or not.
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"Teacher Chen, phone number!"
Da Binzi handed the phone to Chen Bai, and Chen Bai saw that it was Wu Di who made the video call.
"Chen Bai, the investigation you asked me to investigate has come to fruition. The bodily fluid in Ma Xiaoling's body belongs to Zhang Song. I also tested the bottle of wine you gave me. The wine in the deceased's cup is indeed different from the wine in the bottle.
One, and the wine in the bottle doesn’t contain hemlock.”
Chen Bai tapped his fingers on the table. Four people went camping but they all died. The murderer was definitely not among these four people, but how did the murderer poison them? How did he guarantee that all four people would be poisoned?
"Song Anchun, did the four people die at about the same time?"
"That's right. Judging from the body spots on the bodies of the four people, we can tell that they died almost at the same time."
Chen Bai thought for a while, and before he could speak, Li Huan suddenly interrupted.
"Chen Bai, I also investigated something here."
After Li Huan finished speaking, he sent a document to Chen Bai.
"I found out that someone anonymously published a paper on the forum of the College of Agriculture, and this paper was about the widespread application of poison hemlock, and this person's signature is Garuda. But this is not strange, it is strange
This paper is similar to Zhang Song’s graduation thesis.”
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After speaking, Li Huan sent Chen Bai another copy of Zhang Song's graduation thesis.
"Chen Bai, look, Zhang Song's graduation thesis and this thesis called Garuda are basically 80% similar."
"So, you suspect that the murderer was Zhang Song, but Zhang Song accidentally drank wine with poison hemlock, so the four of them died together?"
Li Huan nodded, but Chen Bai disagreed with Li Huan's idea.
"First of all, if it was really Zhang Song who committed the murder, then Zhang Song could have used a smarter method. If that didn't work, Zhang Song could have put the poison hemlock into the wine or the food they brought. There is no need to go there himself!"
The case reached a deadlock here. Chen Bai first asked Li Huan to investigate whether Yang Xu had any travel records on the night of the crime, and then he took Da Binzi to the Agricultural College again.
"Don't Yang Xu have many friends?"
Chen Bai found Yang Xu's roommate. Yang Xu's roommate shook his head and said after hearing Chen Bai's question.
"Yang Xu is usually a taciturn person. He spends a lot of time alone. We have been roommates for five or six years, but even then we have only spoken a few words."
"Then does Yang Xu have a girlfriend?"
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The man shook his head, but at this moment Chen Bai noticed a photo on Yang Xu's desk.
"Have you seen this girl?"
There is a photo on Yang Xu's desk. The photo is of Yang Xu and a girl.
"Yes, Yang Xu has a girlfriend, but I don't know how we met her."
Chen Bai nodded. At this moment, Chen Bai noticed that the man was hesitant to speak.
"Brother, just say whatever you have to say. As for whether it has anything to do with the case, we will decide for ourselves."
After hearing what Chen Bai said, the man spoke.
"Actually, Yang Xu also has a crush on Ma Xiaoling, and they always meet in private. But since both Ma Xiaoling and Yang Xu have boyfriends and girlfriends, they only meet in private."
When Chen Bai found Yang Xu for the second time, Yang Xu was about to take his girlfriend to take wedding photos.
"I'm really sorry to bother you. Yang Xu, we still have some questions to ask you."
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"Officer, I don't have time now. I want to take wedding photos with my girlfriend."
After Yang Xu finished speaking, he wanted to leave, but was caught by Chen Bai.
"Yang Xu, I think it's better to talk to you about this matter alone."
"No, there is something that cannot be said."
Yang Xu's girlfriend stopped Chen Bai. Chen Bai looked at Yang Xu's indifferent look and smiled and said.
"Yang Xu, since you don't care anymore, let me tell you. What is the relationship between you and Ma Xiaoling?"
"Ma Xiaoling? Are you still in contact with that woman?"
The woman was a little angry when she heard Chen Bai's words, and Chen Bai also saw that the woman seemed also very angry about the name.
"Officer, there has been no contact between Ma Xiaoling and I for a long time."
Seeing Yang Xu's anxious look, Chen Bai was even more sure that Yang Xu was hiding something from him.
"Yang Xu, I advise you to tell me the truth now. If you don't tell me here, we will tell you somewhere else."
At this time, Yang Xu faced the scrutinizing gazes of his girlfriend and Chen Bai, and finally couldn't bear it anymore.
"We actually met because of Professor Wang, but there really is no other relationship between us."
Although Yang Xu said this, Chen Bai saw the dodge in Yang Xu's eyes.
"Officer, no matter what, our Yang Xu has nothing to do with that woman now. I know my man is an introverted child. Instead of investigating these useless things here, why not investigate that woman Ma Xiaoling?
Ask her why she seduces others after knowing that a man has a girlfriend."
"Girl, I heard that Yang Xu stayed up all night at the Internet cafe the day before yesterday. On such an important day as 520, wouldn't you be disappointed if he didn't accompany you?"
In fact, Chen Bai was just talking casually, but he didn't expect that the girl was stunned for a moment after hearing what Chen Bai said, and then she said.
"No! We went to the Internet cafe together that night. We didn't leave until the morning. Officer, if you have nothing to do, we will leave first. We are getting married and we must take wedding photos."
The girl said and pulled Yang Xu away, but Chen Bai could see that the girl didn't look at Yang Xu at all when she was talking, and when the girl showed the ring on her hand, Yang Xu lowered his head and showed no happiness at all.
look.
"Okay, I'm sorry to disturb you."
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After the two left, Chen Bai immediately took Da Binzi to the Internet cafe where Yang Xu was surfing the Internet.
"Boss, I want to ask you, did this person come to your place to surf the Internet the night before yesterday?"
The little girl at the front desk looked at the photo, shook her head and said.
"I'm not sure about this. There are too many people coming to our place every day."
"He is Yang Xu. He came here to stay overnight and chose a private room the night before."
When the girl at the front desk heard that Chen Bai had provided such detailed information, she turned on her computer and started searching.
"Yes, this person did come online that night and played until the next morning."
"Can you take me to see that private room?"
Although Mu Bai had already watched it once, Chen Bai still decided to go and have a look.
"Can you go down through the window?"
"right?"
The little girl at the front desk obviously didn't expect Chen Bai to say this. Chen Bai opened the window and jumped directly from the second floor.
"Da Binzi, come down from over there!"
After the two came down, Chen Bai began to observe his surroundings. There was a small alley behind the Internet cafe, and there were no cameras around it.
"Teacher Chen, don't you suspect that Yang Xu used the Internet to kill someone after leaving here?"
"Da Binzi, go and ask the front desk if Yang Xu came with a girl at that time?"
Da Binzi went to the front desk to ask, while Chen Bai walked forward to see if there were any cameras nearby.
"Teacher Chen, I took a look at the Internet cafe surveillance at that time, and Yang Xu came alone at that time."
Chen Bai nodded. If that was the case, then Yang Xu's girlfriend was lying when she asked her just now.
"Teacher Chen, look!"
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Da Binzi suddenly roared, which startled Chen Bai.
"What are you doing!"
"Teacher Chen, look at the surveillance!"
Chen Bai looked in the direction that Da Binzi was pointing. He saw a hair salon not far away and a camera at the door of the salon.
"Teacher Chen, let's go take a look!"
After investigating the camera, Chen Bai saw that around ten o'clock in the evening, Yang Xu appeared from the entrance of the alley and got into a black Mercedes-Benz.
"Mubai and the others can't do it! No such clues have been found!"
Of course, this cannot be used as a clue to Yang Xu's murder, but after Chen Bai asked Li Huan to check the license plate, he found that the car happened to appear in Aranya that night.
"Teacher Chen, if this is the case, does it prove that Yang Xu committed murder?"
Chen Bai pondered for a moment. In fact, this can only prove that Yang Xu was not in the Internet cafe that night, but it is hard to say whether it can prove murder.
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"Let's check the owner of this car first!"
But what Chen Bai didn't expect was that the owner of the car was actually Professor Wang.
"Professor Wang, I'm really sorry to disturb you again. I just want to ask you something this time. Why did you go to Aranya with Yang Xu on the day of Zhang Song's death?"
Looking at the photos and high-speed records on the table, he smiled and said.
"Officer, I just thought the sunrise in Anaya was particularly beautiful, so I called my student and we went to watch the sunrise together."
"Really? But you have already returned to Binhai at four o'clock in the morning. Did you really watch the sunrise?"
Professor Wang said nothing, but this was not the final evidence.
"Professor Wang, since that's the case, we won't disturb you for now. You can rest first."
After leaving Professor Wang's office, Chen Bai connected all the clues together.
"All four of Zhang Song and Zhang Song died from poison hemlock poisoning, and Yang Xu's desk contained ointment used to treat trauma. Yang Xu went to surf the Internet, but secretly ran out with his professor, and the place where they went happened to be filled with four people.
A place of death.”
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I don't know why, but Chen Bai always feels that this clue is almost connected.
"Hurry up and go see how the tomatoes we planted are doing. Let me tell you, this is my graduation thesis and I will definitely protect it."
A girl walked past Chen Bai. Listening to the girl's words, Chen Bai suddenly thought that most professors in agricultural colleges would have their own piece of land. If the poison hemlock in Yang Xu's hand came from Professor Wang's land, then maybe there was one.
Reasonable.
"Ask Mu Bai to take people to test Professor Wang's land to see if there is poison hemlock in it."
Sure enough, after Mu Bai led people to test Professor Wang's land, they indeed detected poison hemlock in it.
"Chen Bai!"
"explain!"
When Chen Bai saw Li Huan sending him a message, he knew that Li Huan must have found something new.
"Chen Bai, I found that the previous post on the forum was Professor Wang's paper many years ago, so Zhang Song probably plagiarized Professor Wang's paper."
After Li Huan finished speaking, Chen Bai took a look at the paper on his mobile phone. Zhang Song's paper was indeed highly overlapped with Garuda's paper.
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"Summon Professor Wang immediately, and of course don't forget Yang Xu."
In the interrogation room, Yang Xu sat on a chair and looked at Chen Bai with some confusion.
"Officer, what crime did I commit to bring me here?"
Chen Bai didn't say anything, but showed Yang Xu the scene of Yang Xu coming out of the back of the Internet cafe.
"Yang Xu, can you explain this?"
Yang Xu looked at the surveillance camera and said nothing. He knew that it was useless to say anything now.
"Yang Xu, what did you and Professor Wang do that night?"
Yang Xu didn't speak, so Chen Bai waited for Yang Xu to speak.
"I have nothing to explain!"
"Yang Xu, I don't need your explanation. I just want to ask you, where did you go that day?"
But no matter how Chen Bai asked, Yang Xu just didn't say anything.
"Yang Xu, if you don't say that we can also find evidence of your crime, what you say now is giving yourself one last chance. I hope you can cherish this opportunity. If you don't cherish it, your crime will only be more serious.
big."
Chen Bai thought to himself, since he had already said this, Yang Xu would have figured it out no matter what happened, right? But no, Yang Xu still didn't speak after hearing Chen Bai's words.
"Okay, if that's the case, then I can only ask Professor Wang."
Of course, for Yang Xu, Professor Wang explained quickly. After Chen Bai presented evidence one after another, Professor Wang finally couldn't stand it any longer.
"Yes, I killed Zhang Song and several others. But those people deserve to die!"
At this time, Professor Wang lowered his head and spoke with a lonely expression.
"I don't have children, and those students are like my children, but Zhang Song and others said that they would not study for a Ph.D. after finishing graduate school. They also said that they would go home together and use the knowledge they learned to participate in building a new countryside.
Plan, I don’t understand why these people who are well-educated want to return to their barren land. They can obviously be excellent scientists wearing white coats in the laboratory, as long as they develop faster production methods.
You can also build your hometown with food!"
Chen Bai said nothing, and Professor Wang's face was filled with madness at this time.
"So, just for this reason you killed four of your students?"