Everyone had briefly discussed the case along the way. Chen Bai listened to the discussion while driving. The case was roughly that three men and one woman went camping, but they were all found dead in the campground the next morning.
According to the forensic on-site examination, it was found that the four people present had no other external injuries. According to the toxicological examination, it was found that the four deceased people died of poisoning.
"Did the forensic doctor give out the test results?"
Da Binzi flipped through the case information, shook his head and said.
"No, there is no forensic toxicological analysis in the case information, but trace examination found chopsticks made of oleander branches next to the deceased at the scene, and also found barbecue mushrooms eaten by the deceased, so the local police speculated that four
The deceased was poisoned by using chopsticks made from oleander branches and eating undercooked mushrooms."
“Can mushrooms and oleander really kill people?”
Feng Qianqian was a little puzzled. She knew that oleander was poisonous and she also knew that mushrooms were poisonous if they were not cooked properly. But could it really cause death?
"Not sure, so we need to go check it out."
In about two hours, Chen Bai drove to Aranya. As soon as he got off the car, Chen Bai saw a forty-year-old man and several young people squatting on the roadside smoking.
"Let's go! We're here!"
Chen Bai smiled when he saw the man. Isn't this man none other than Li Yang, his classmate when he went to Haikou?
"You guys are going too fast. Come on, it's exactly noon. Let's find a place to eat first."
"No need, let's quickly take a look at the case!"
Hearing Chen Bai's words, Li Yang quickly pulled Chen Bai aside.
"Chen Bai, I'm going to talk to you now. Are you a consultant, not the captain of the criminal police? How can you make decisions for others before the captain has spoken? Also, in fact, we originally wanted to inform you about this matter.
A college student went camping and accidentally ate something poisonous. It was an accident..."
Before Li Yang could finish speaking, Chen Bai grabbed him by the collar.
"Li Yang, do you know what you are talking about? You are a policeman. You can never characterize a case until there is decisive evidence. College students don't know how to cook. It is possible that the mushrooms are not cooked. A graduate student in the Department of Botany of the College of Agriculture
Don’t you know oleander is poisonous? Use your brain and think about it carefully!”
After Chen Bai finished speaking, he pushed Li Yang away and spoke in a low voice.
"You are a police officer. It is your job to solve the case and find the truth. As for whether the murder will affect the tourism industry here, it has nothing to do with you. If you let the real murderer go because of this, how will you explain to the family of the deceased?"
The few people returned to the police station. Chen Bai had already contacted Mu Bai and asked them to visit the Agricultural College to see how the four deceased people's interpersonal relationships were at school.
"The person who reported the crime was a camping enthusiast like the deceased. We rushed to the scene immediately after receiving the report. This is a photo of the scene at that time."
A young police officer put the photos of the scene on the big screen. Chen Bai saw that there were only three dead people at the scene and couldn't help but asked with some doubts.
"Aren't there four dead? Why are there only three?"
"Xiao Zhang!"
After Li Yang finished speaking, Xiao Zhang also put the second photo on the big screen.
"The fourth deceased was found by the creek. We analyzed the food eaten by the deceased and found that the deceased used oleander branches to make chopsticks, and the mushrooms eaten by the deceased were not roasted. In addition, we found that the deceased also ate
The botulinum toxin in these items is also fatal when they are not cooked. Based on the above, we believe that the death of these four people was an accident."
After Xiao Zhang finished speaking, Chen Bai took out a cigarette and lit it, then looked back at Da Binzi and the others.
"How's it going? What do you want to say after seeing the photos?"
"Teacher Chen, I noticed that the mouths of the four deceased people had traces of vomiting, which is consistent with symptoms of food poisoning, but I still have the same question, can oleander and mushrooms really cause death?"
After Da Binzi finished speaking, the trace inspector on Li Yang's side stood up and said.
"Oleander is highly poisonous. Ingesting only about 50 to 60 grams can cause death. They use oleander branches to make chopsticks and must have eaten a lot, so death is normal."
"So, haven't you done the toxicology test yet?"
Chen Bai was a little helpless. Although you found these things at the scene, it doesn't mean you don't need to do toxicological testing.
"We are still doing toxicological testing, and the results are expected to be available soon."
"Wait a minute, can I see the evidence you found at the scene? Especially the chopsticks made of oleander branches, I want to see it."
Wu Di squinted and looked at the photos on the big screen, but Wu Di's myopia was very serious. He basically didn't wear glasses when he wasn't working. He was sitting far away, so he couldn't see the photos on the big screen at all.
"What does this tell you?"
Li Yang was a little confused, but he still handed Wu Di the oleander branch found at the scene. As soon as Wu Di took the evidence bag in his hand, he saw the problem.
"Chen Bai, look at it!"
Wu Di handed the evidence bag in his hand to Chen Bai. Chen Bai took it and took a look and found the problem.
"Li Yang, have you detected the deceased's fingerprints from these branches?"
"Why are they testing for fingerprints? These branches are cut so neatly and placed next to the food. They must be using them as chopsticks."
Li Yang was a little confused, and Chen Bai looked at Li Yang and could only explain.
"The branches in the evidence bag were cut extremely smoothly, which means that the deceased must not have broken two haphazardly, but carefully trimmed them. However, there is no smell of food on these branches, which means that the deceased did not have any food at all.
These were used as chopsticks, and the cuts on these branches were smooth, indicating that the deceased must have cut the branches with a knife or something like that. Did you find a knife on the deceased’s equipment? Is there any oleander juice on it?”
After Chen Bai finished speaking, Li Yang was stunned. Mainly because after arriving at the scene and finding so much evidence, they naturally assumed that the deceased died because of these poisons.
"Li Yang, is there anything left at that scene?"
"Yes, we were afraid that something would be missed, so we stayed at the scene."
Chen Bai nodded. Since there was a scene, it would be much easier. He decided to go and see the scene again.
"In this case, you take a few people with me to check out the scene. Our forensic doctor will work with your forensic doctor to conduct an in-depth autopsy on the deceased to see if there are any problems."
On the way to the scene, Chen Bai couldn't help but ask.
"By the way, weren't you always over there in Haikou? Why are you here again?"
"It's a long story, but it's actually simple. I was transferred there at the time, and now I'm transferred back."
Chen Bai nodded. He didn't know much about the police transfer, so it was inconvenient for him to say more.
"Chen Bai, we wanted to call you at our class reunion last week, but you were busy at that time and we didn't have the nerve to call you. If you have time in the future, we can get together."
Chen Bai opened the window and lit a cigarette.
"What's there to get together with? Everyone's life trajectories are different now. Even if we meet, what can we say? I'm so busy every day. Apart from solving crimes, it's also about school. If I really have time, I'd better take a good rest!"
Several people arrived at the scene as they talked. The Aranya Gold Coast community is very different from before. Now it basically has all kinds of dining and entertainment, and there is even a bookstore that only young people go to. And what is shocking is that,
This is actually a community.
"It is said that the rooms here are 23,11 square meters, and this place is actually more expensive than the housing prices in Binhai!"
Chen Bai was a little surprised, because even if this place is a good place, it is not that central, and the housing prices are basically on par with the top of second-tier cities.
"Yes! Nowadays, many people like the feeling of returning to nature, so they come here to play. I have lived here for so many years, but I don't think there is anything good here."
As they talked, several people came to the scene. After crossing the cordon, Chen Bai saw where the deceased were camping.
"Four dead, three tents, didn't you think it was a little strange at the time?"
Looking at the tent on the ground, Chen Bai asked.
"Is it normal for four people to have three tents? I saw that all the tents in one tent are filled with their backpacks and the like. There are three boys in one tent and one girl in one tent. Isn't this normal?"
Li Yang didn't take it seriously, but Chen Bai smiled and shook his head.
"Li Yang, you may have missed some details. There may have been a fifth person here when the crime occurred."
Chen Bai knelt down and carefully examined the traces at the scene. Although the deceased's belongings had been taken away, many things could still be seen based on the photos at the scene.
"How did you determine that there was a fifth person here when the crime occurred?"
Li Yang was a little puzzled, but Chen Bai didn't reply and just looked at the surrounding environment.
"There are clear regulations on the planting of oleander. Generally speaking, they will not be planted casually on the roadside. Where are their branches broken?"
When Li Yang heard Chen Bai ask this, he immediately pointed to the front and said.
"About two hundred meters from here, there is a traditional Chinese medicine hospital. The deceased's oleander branch was probably broken there."
Chen Bai nodded. At this time, Wu Di called and said that he had made a new discovery.
"Okay, I understand and I'll go back right away."
After returning to the police station, Wu Di handed Chen Bai a test report.
"Song Anchun and I both felt that the four deceased people were probably not poisoned by oleander. Later, during the test, we accidentally detected poison hemlock residue in the cups of the four deceased people."
"Poison hemlock?"
Chen Bai was a little surprised. He knew that poison hemlock was much more toxic than oleander, and the ingredients of poison hemlock were found in the cups of four deceased people, which meant that someone must have poisoned them.
"Now, do you still think this was an accident?"
Looking at the test report in his hand, Li Yang was a little confused. If the murderer really planned to poison, then why were all four people poisoned?
"In addition to the ingredients of poison hemlock, I also detected the ingredients of foreign wine in the cups of the four deceased people. Although I don't know what kind of wine it is now, what I can know is that the murderer definitely wanted to use foreign wine.
scent to mask the smell of poison hemlock.”
Chen Bai knew that poison hemlock tasted very strong and had a strong odor. If he was not drunk, he would never eat this kind of thing in his mouth.
"By the way, are there wine bottles among the belongings of the four deceased people?"
"have!"
After Li Yang finished speaking, he immediately asked someone to bring the wine bottle.
"Hurry up and test it and see..."
Before Li Yang finished speaking, Chen Bai opened the bottle and smelled it.
"No, the wine in the deceased's glass is probably not this. Wu Di, please check it."
Wu Di went to test the wine in the bottle, while Chen Bai found Song Anchun.
"How did the autopsy go?"
"Wu Di has already told you, so I won't say more. All four deceased people died of poison hemlock poisoning. Apart from the poisoning, there were no external injuries on the deceased's bodies. The time of death was between eight and ten o'clock in the evening. One of the deceased
The person who appeared by the creek must have been poisoned, so he struggled to reach the creek, but he couldn't save himself due to the poisonous hemlock, so he still died."
Chen Bai nodded, and then Song Anchun said again.
"Also, the female deceased had had sexual intercourse before her death, but there were no resistance injuries on the deceased's body and no lacerations on her lower body. It should have been voluntary. I have extracted male body fluids from the deceased's body and are conducting further analysis.
.”
Chen Bai nodded. If that was the case, then as he had guessed, the deceased woman must have been in a relationship with one of these three people.
"Teacher Chen, Captain Mu called and said that the investigation into the social relationships of the four deceased people is almost complete and they want to report to you."
Chen Bai answered the phone and heard Mu Bai's voice.
"Chen Bai, I have investigated the social relationships of the four deceased. Zhang Song, Li Tao, Bai Qing, and Ma Xiaoling are all graduate students of the College of Agriculture. They are classmates in the same class. Among them, Zhang Song and Li Tao are bunk beds in the same dormitory. These days
They are all the kind of children who study hard in school. These few people have a good reputation, but recently Zhang Song and others have a project in their hands and need an assistant. It is said that if this project is completed, it seems that there will be a fortune worth a lot of money.
There is a bonus, but there is only one assistant spot, so these four people all want this assistant spot. Of course, competing with these four people is Zhang Song’s classmate Yang Xu. Yang Xuejue is excellent in both academics and academics, and he has a direct PhD.
Therefore, Yang Xu has a greater chance."
Chen Bai thought for a while and continued to ask.
"Have you investigated this Yang Xu?"
"We have also investigated this, but when the case occurred, Yang Xu stayed at the Internet cafe during the holiday and did not leave the Internet cafe all night. I have confirmed this with the Internet cafe staff."
Chen Bai thought for a moment, nodded and said.
"That's right, okay, I understand."
Chen Bai hung up the phone. He knew that this matter was definitely not as simple as it seemed. If one of the four people had the intention to kill the other three because of the assistant's quota, why did all four of them die?
"Chen Bai, do you think that Yang Xu is suspicious? He is the fifth person at the scene?"
Since Chen Bai was playing outside, their conversation was also heard by Li Yang.
"I'm not sure what the outcome will be right now. There's still some investigation into this case!"
Chen Bai left everyone in Aranya and took Feng Qianqian back first. It wasn't that Chen Bai didn't trust Mu Bai's investigation results, but there were too many doubts in this case, and there were some things he had to do and inquire about in person.
"Teacher Chen, I'm sorry to keep you waiting."
"Professor Wang, you're welcome."
Because Chen Bai also had acquaintances in the Agricultural College, he quickly found mentors like Zhang Song and others.
"Professor Wang, the purpose of coming here today is actually very simple. I just want to ask you and Zhang Song how their relationship is at school?"
Professor Wang is a woman in her fifties. After hearing Chen Bai's question, she pushed up her glasses and smiled.
"Teacher Chen, although we have no intersection, I have heard your name. You can actually ask about that project directly."
When Chen Bai saw Professor Wang being so candid, he stopped beating around the bush.
"Well, since you are so frank, I won't say much else. Yes, I came here just to ask you what this matter is about. I know there are things you can't say, but I just want to ask.
Which of your students would you prefer to be your assistant?"
Chen Bai knew that this question was very important, and Chen Bai believed that the murderer would not be so stupid and would pay for himself when he killed. Professor Wang saw Chen Bai being so direct, shook his head and smiled bitterly.
"Yang Xu, of course Yang Xu. Yang Xu is very good both in terms of learning ability and interpersonal communication. Of course the candidate in my mind is Yang Xu. In fact, it's not that Zhang Song and others are not good, it's just that Zhang Song
They are all too outgoing, and in the end they are too active-minded and not suitable for doing research, but Yang Xu is different. He is a good kid who usually spends time reading in the dormitory besides studying. Such a person is more suitable for doing research and is more suitable to be my assistant.
"
Chen Bai nodded, and Professor Wang hesitated before asking.
"Teacher Chen, I know I shouldn't ask these questions, but as the mentor of Zhang Song and others, I still want to ask, why did Zhang Song and others die?"
"Professor Wang, we have regulations not to disclose too many details of the case before the case is solved. You will know it after the case is solved."
The case was not solved, so of course Chen Bai could not reveal too many details of the case. After leaving Professor Wang's office, Chen Bai immediately found Yang Xu.
"Yang Xu, where were you the night before yesterday?"
"Didn't I tell you? I'm staying at the Internet cafe for the night!"
When Chen Bai stopped Yang Xu, Yang Xu happened to come out of the cafeteria, but Chen Bai obviously didn't believe what Yang Xu said. Although Mu Bai checked the surveillance of the Internet cafe, Yang Xu chose a private room in the Internet cafe when booking the night.
Once the door of the private room is closed, the outside cannot see inside. Moreover, the private room also has windows. The height of the second floor is not high, so it is not impossible to go down through the window.
"You are such a good student, but you actually go to an Internet cafe to spend the night!"