"Actually, this kind of thing is easy to understand. Serial killers generally have their own specific labels. Some of these labels are based on their methods of committing crimes, and some are specific groups of people. If the murderer chooses a cram school teacher as his target, it is very likely that he encountered someone in his youth.
I have been to an unforgettable cram school teacher. This person may have brought me unforgettable memories, or left a shadow on my heart, so the murderer chose the cram school teacher as his target."
After Chen Bai finished speaking, he pasted two photos of the deceased on the whiteboard.
"Actually, there is one more thing. I don't know if you have paid attention to it. During Song Anchun's autopsy, he found that the two deceased people had their hair cut short before death, and they also had a dimple on the right cheek. I have already investigated
There were two deceased people. Neither of them had short hair when they were alive, but they all had short hair when they died. This means that the murderer had cut their hair short before killing them."
After Chen Bai finished speaking, Da Binzi asked immediately.
"Teacher Chen, the murderer deliberately dressed the deceased in the same way, and they all chose the tutoring profession. Does this mean that the murderer has a soft spot for women in the tutoring profession, or that he has been severely hurt by such a woman?
Pass?"
After Da Binzi finished speaking, before Chen Bai could speak, Song Anchun took over.
"That's right. I personally analyze that it is unlikely that the murderer has any hatred for women in the tutoring profession. I haven't had time to say that when I did an autopsy on Li Xiaohui, I found that there was a large amount of sleeping pills in Li Xiaohui's stomach, and
Li Xiaohui still has traces of being violated. How should I put it? To put it simply, it is very likely that Li Xiaohui was still unconscious when she fell from a height."
"Could it be said that the murderer wanted the deceased to suffer less?"
Feng Qianqian was a little confused, but at this time Li Huan, who was checking the surveillance, projected a video on the big screen.
"Everyone, look at this!"
Everyone saw that the video showed a man carrying a woman up the stairs. Although the faces of the two could not be seen clearly, they could tell from the girl's clothes that she was the deceased Li Xiaohui.
"Li Huan, where is this surveillance?"
Chen Bai was a little curious, but Li Huan smiled proudly.
"Actually, after this case happened, I have been thinking about how the murderer brought the deceased to the roof of the building? How did the deceased voluntarily follow the murderer to the roof of the building? And you also said that the murderer first brought the deceased to the roof of the building.
The deceased was strangled and then thrown downstairs. Combining these clues, I checked the surveillance near the supermarket, and I really found the clue. This video is from the surveillance at the entrance of a billiards hall behind the supermarket. This billiards hall is open.
It’s in the basement behind the supermarket, and above the billiards hall is a hotel.”
Li Huan said, walked directly to the whiteboard and roughly drew a picture of the scene.
"There is a staircase on the far west side. The murderer went up from here. He then passed the main entrance of the billiard hall and then went up to the second floor. I don't know how the murderer told the people in the hotel. Anyway, this person should have come from the hotel's security guard.
Go out through the exit, enter the fire door of the supermarket, and take the safety stairs to the top floor of the supermarket."
After speaking, Li Huan drew the murderer's route.
"You mean the murderer made such a big circle just to avoid the camera?"
Bai Hongwei was a little confused, but Chen Bai felt that what Li Huan said made sense.
"After killing someone, the murderer will walk into the supermarket in a big way. As long as he blends in with the crowd, you won't be able to spot him at all."
"Yes, this also explains why there are no traces of the deceased's struggle on the rooftop!"
Although the investigation has cleared up this aspect, the identity of the murderer is still a mystery.
"Chen Bai, you should eat something first!"
Bai Hongwei handed the lunch box to Chen Bai. Chen Bai had been looking at the information of the two deceased people for three hours. Chen Bai took the lunch box and put it aside.
"Have you finished the psychological profiling of the murderer?"
"No!"
Chen Bai shook his head. There was too little evidence that could be seen from the scene, so Chen Bai could not complete the profile of the murderer yet.
"Chen Bai, actually, rather than the murderer's purpose of killing, I think it would be better to find out how the murderer controlled these women."
Hearing Bai Hongwei's question, Chen Bai stood up, stretched, took out a cigarette and lit it.
"Actually, this is easy to understand. The best person to contact the tutor is the child's parents. The murderer can actually contact them as a child's parent, as long as..."
Chen Bai suddenly stopped here because he thought of Li Xiaohui's boyfriend that Li Xiaohui's colleague mentioned at the time.
"What's wrong?"
"Chen Bai, look what we found."
At this moment, Wu Di and Song Anchun ran into the office excitedly.
"We found some straw fibers and traces of animal feathers from under Li Xiaohui's fingernails."
With that said, Wu Di placed the two small jars in his hands in front of Chen Bai and Bai Hongwei.
"We found this from the deceased's fingernails. I think the murderer's hiding place is probably a farm or something."
The more Wu Di talked, the more excited he became. He went directly to the map and circled a location in the eastern suburbs.
"You see, there is a farm here, and it is far away from the city. If the murderer brought the deceased here, no one would be able to find it."
After Zhao Xu finished speaking, Bai Hongwei nodded and said.
"Yes, if that's the case, it's really possible."
After the two of them finished speaking, they looked at Chen Bai together. They thought that Chen Bai would agree with his point of view, but unexpectedly, Chen Bai just took one look at it and shook his head and said.
"No, although the deceased had straw and feathers under his fingernails, the murderer did not keep the deceased on the farm."
"What?"
Wu Di was a little surprised. He thought his analysis was correct. Chen Bai smiled and led a few people to the forensic laboratory.
"Actually, I noticed something when I first saw Li Xiaohui's body. There was a scar on Li Xiaohui's left arm near her elbow, and her right thumb was also slightly deformed. Do you know why?"
"Why?"
Several people were a little anxious, why was Chen Bai so secretive at this time?
"That's because the deceased has been playing with bows and arrows all year round. The scars on the deceased's left arm are caused by the wrong posture of drawing the bow. The reason why the thumb of the deceased's right hand is deformed is because he wears a thumb ring all year round to draw the bow.
The reason why straw and feathers are left in the nails is because the targets for bows and arrows are usually haystacks. I think the next step is to check all the archery clubs in Binhai. And I have a feeling that the deceased
It's very possible that he met the murderer there."
After that, Li Huan investigated all the archery clubs and found the name of the deceased in a club called Archery.
"Yes, this person is our member. She comes to our place to shoot arrows almost every Thursday."
"Does Li Xiaohui have any good friends here? Especially the opposite sex?"
The young lady at the front desk thought for a while and suddenly said.
"This, it seems there isn't one, right?"
"Okay, since that's the case, we won't bother you for now."
After Chen Bai finished speaking, he and Feng Qianqian were about to leave, but at this moment they met a man, the man they saw from Li Xiaohui's work that day.
"What a coincidence. Do you also like archery?"
"No, I just came here to do something."
After the man left, Chen Bai felt more and more that this man looked a bit like the man he saw that day.
"Let's go!"
On the way back, Chen Bai received a call from Wu Di while driving.
"Chen Bai, I have checked all the belongings of Li Xiaohui you gave me, and there is nothing abnormal. However, the men's watch you gave me only has one person's fingerprints on it."
"Only one person's fingerprints?"
Chen Bai was a little confused because Chen Bai saw the man helping Feng Qianqian pick up the watch.
"okay, I get it."
After Chen Bai hung up the phone, he immediately returned to the archery hall. After asking the staff, the staff said that the person just came just for fun and did not open the card, so there was no record left.
"Teacher Chen, do you suspect that the person just now is the murderer?"
Feng Qianqian was a little confused. If that person was the murderer, would he really take the initiative to appear in front of the police?
"Forget it, let's go back first!"
Chen Bai was a little disappointed when he didn't get the result, but after returning to the police station, Da Binzi brought Chen Bai good news.
"Have you found Li Xiaohui's boyfriend?"
"Teacher Chen, not long after you went to investigate, a man came to the criminal police team to report the case, saying that he couldn't contact his girlfriend for nearly a month. I went to look for her at home today, but couldn't find her."
After hearing Da Binzi's words, Chen Bai decided to meet this man.
"Hello, police officer, my name is Yu Kaiyuan, I am a lawyer. After I came back from a business trip, I found that my girlfriend was missing. I called her work to inquire, but her colleagues told me that Xiaohui had jumped off the building. Officer, what happened?
What's the matter?"
Chen Bai looked at the man opposite him, wearing a suit and tie, and gold-rimmed glasses, with a very flustered expression.
"Mr. Yu, please don't get excited. We don't know what the situation is yet, but I have a question for you. Didn't you contact Li Xiaohui when you were on a business trip?"
Chen Bai was a little confused. After hearing Chen Bai's question, Yu Kaiyuan quickly explained.
"That's it, Xiaohui and I had a fight. Xiaohui deleted all my contact information in a fit of anger. I wanted to comfort her but my work was urgent, so I planned to apologize properly after I came back from a business trip, but I didn't.
What I thought was that this happened after I came back."
Yu Kaiyuan looked very sad, but Chen Bai obviously would not believe this man's words so easily.
"Mr. Yu, where were you between eleven and one o'clock yesterday afternoon?"
"I...Officer, what do you mean?"
At first, Yu Kaiyuan was a little unresponsive, but after listening to Chen Bai's question, Yu Kaiyuan suddenly understood what Chen Bai meant.
"Mr. Yu, don't worry, we are just checking all possible people."
"I went on a business trip, and I was having dinner with my colleagues at that time yesterday. If you don't believe me, you can ask my colleagues."
After sending Yu Kaiyuan away, Chen Bai immediately investigated Yu Kaiyuan's itinerary, but to Chen Bai's disappointment, Yu Kaiyuan did leave Binhai a month ago and did not come back for a full day.
"Could it be that the direction of our previous investigation was always wrong?"
Chen Bai was a little confused, but at this time, the person who had been responsible for investigating Wang Xinyu had new clues.
"Teacher Chen, our investigation found that there was a man who had a good relationship with Wang Xinyu before, but since Wang Xinyu disappeared, this man has never been seen."
After Da Binzi finished speaking, he took out a USB flash drive. After Li Huan played the contents of the USB flash drive, he discovered that it was a piece of surveillance.
"Look, it's this man!"
It was at this time that Chen Bai discovered that the man on the surveillance camera was the man he met twice.
"Then it looks like we have to invite this person back for a chat."
The police were still very fast, but when the man sat in the interrogation room, his expression did not show any signs of nervousness.
"Shang Jie, I'm really sorry to invite you here when you are working, but don't be nervous. In fact, I asked you to come because I have a few questions to ask you."
After Chen Bai finished speaking, he took out the photos of Wang Xinyu and Li Xiaohui.
"Mr. Shang, I wonder if you have any impression of these two girls?"
Chen Bai was originally testing, but he didn't expect that when he took out the photos, Shang Jie had no reaction at all. After he asked the question, Shang Jie took the two photos carefully, shook his head after reading them.
"I'm so sorry, I have no impression of these two girls."
Chen Bai didn't say anything on the surface, but he knew that this person's psychological quality and anti-reconnaissance ability must be very strong.
"Shang Jie, this is not the first time we have met. If we didn't have evidence, we would never ask you to come."
"Really? But I really don't know these two girls!"
Shang Jie smiled. Chen Bai and Shang Jie looked at each other, both of them seemed to be guessing what the other was thinking.
"Shang Jie, since you said so, please take a rest here with us!"
After Shang Jie was taken to the detention room, Chen Bai and others immediately analyzed Shang Jie.
"Shang Jie has a very strong psychological quality, and the fact that Shang Jie can think of putting the ID of the second deceased in the pocket of the first deceased shows that this guy is not simple."
"Teacher Chen....."
As soon as Chen Bai finished speaking, he was interrupted by Feng Qianqian. When Chen Bai was wondering what was going on, Feng Qianqian spoke.
"Teacher Chen, you said that the murderer targeted tutors with short hair. When we went to investigate Li Xiaohui, I remembered that Shang Jie seemed to have made eye contact with a female teacher, and I remember that the teacher seemed to have short hair.
.”
"What?"
Chen Bai was a little surprised, but Bai Hongwei immediately wanted to re-interrogate Shang Jie after hearing it.
"It's useless. Shang Jie's psychological quality is such that if you don't get the key evidence, Shang Jie won't say anything."
"Then what do we do?"
Bai Hongwei was a little anxious, but Chen Bai thought for a moment and then spoke.
"In this case, you take people to Li Xiaohui's training institution to inquire and see if the female teacher Feng Qianqian mentioned came to work today. The rest of the people will go to Shang Jie's house with me to have a look."
"good!"
Everyone split up. After Bai Hongwei arrived at the training institution, Feng Qianqian once again found the front desk where they had been received last time.
"Girl with short hair, you mean Teacher Wang, right? Yes, we have such a teacher, but Teacher Wang asked for leave and hasn't come to work for three days."
After the lady at the front desk finished speaking, Feng Qianqian immediately took out a photo and asked.
"Have you seen this man?"
The lady at the front desk took the photo, looked at it carefully and said.
"Don't tell me, I really have an impression of this person. He seemed to have come to our training institution before and said that his son's academic performance was not good and he wanted to find a teacher for guidance. He also specified that he wanted a general teacher. But we
There were no general teachers here, so this man chose Li Xiaohui, but at that time Teacher Li’s courses were already fully booked, so I persuaded her to change to another teacher, but this man was very stubborn and wanted Teacher Li.”
On the other side, Chen Bai led people to Shang Jie's residence, but after careful search, they could not find it.
"Teacher Chen, do you think Shang Jie would really hide people in his home?"
Da Binzi was a little confused. Anyway, if it were him, he would never hide someone in his home.
"Go and search Shang Jie's car."
After careful investigation, it was discovered that there were a lot of asphalt traces on Shang Jie's tires.
"Li Huan, please check quickly. Which places in Binhai are currently building roads?"
Chen Bai knew that with so much asphalt on the tires, Shang Jie must have gone near a road that had just been repaired or that had not been completely repaired.
"Okay, I'll check right away!"
After hanging up the phone, Chen Bai returned to Shang Jie's house. For some reason, Chen Bai always felt that there was something here that he had not seen just now.
"Teacher Chen, look at this!"
At this moment, Da Binzi found a photo on the bookshelf, and Chen Bai saw that the photo was of young Shang Jie and a girl.
"This girl..."
Chen Bai immediately saw something was wrong, because the girl in the photo also had short hair and a dimple near her mouth.
"Li Huan, if you want to help me check someone out, I'll send you the photo."
Li Huan moved quickly, and Chen Bai soon found out that the girl's name was Li Fang. She used to be a teacher at Binhai No. 25 Middle School. But she jumped off the building because of some things twenty years ago.
"okay, I get it."
After Chen Bai put down his cell phone, he immediately took people to Li Fang's house.
"Shang Jie? I really know this child. When Xiaofang was a teacher at No. 25 Middle School, there was indeed a child named Shang Jie in her class. She always told me that although Shang Jie could not learn well,
Good, but he has a good character, so Xiaofang often gives Shang Jie tutoring lessons."