Criminal Investigation Files

At 09:30 in the evening, the grand ceremony on the banks of the Lunjiang River in the center of Nancheng City, where there are many high-rise buildings, has just ended.

In the dark night, with the evening wind blowing, passers-by on the road are still reminiscing about the unforgettable moment just now, and the air is filled with the smell of fireworks.

On the fifth floor of Lianhua Mingyue Building, Song Wen and Lu Siyu were standing in the corridor half a meter apart. Song Wen was taken aback when he heard Lu Siyu's words: "How do you want to confirm it?"

"We only have a few confessions in our hands now, and all judgment criteria are only the descriptions of the parties, and there are no more video materials." Lu Siyu continued. In the empty and quiet corridor, his cold voice caused a slight echo: "I think ,We are relying too much on the suspect's confession now. Some of the current confessions do not seem to match. I just thought of a method that may be able to identify who boarded that platform tonight ..."

The key issue in the case is who was on that platform.This is like the black box of this case. If you want to know what the truth is, you must crack the code inside.

Lu Siyu pointed to the ground in front of him. The ground of Lianhua Mingyue Building is made of non-slip and transparent imitation white marble floor tiles. Then he pointed to the lamp on the side, and then pointed to the camera in the corner. Under the reflection of his handsome face, his handsome face looks even paler, the color of his lips is thinner, and the long eyelashes cast a shadow.

Song Wen's gaze followed the direction of his fingers, but he didn't realize what he meant for a moment.

Seeing that Song Wen was puzzled, Lu Siyu licked his lower lip and further explained: "The camera's shooting range cannot monitor who walks on the platform, but according to the principle of physical imaging, the lights in the corridor and the white marble floor can reflect Some reflections."

Song Wen lowered his head and looked at the ground in front of him. They had ignored the environmental factors before. The white and smooth white marble floor tiles were like a huge mirror, reflecting a hazy reflection from it.

Song Wenxue once drew a picture, and immediately understood: "That is to say, we can judge who has passed the corridor and walked towards the roof through the shadow on the ground and the reflection on the wall."

Lu Siyu nodded: "But this is just my inference. I hope the video is clear enough to be recognizable."

If it can be clearly seen, the surveillance that was originally only auxiliary can become decisive evidence of who went to the roof, and can make up for the lack of evidence in this case due to insufficient video data.

"Smart!" Song Wen suddenly became excited, wishing he could hug Lu Siyu and spin around.He looked at Zhang Ziqi, who was standing in the corridor not far away, obediently monitoring the suspects in several rooms, restrained himself, snapped his fingers and said, "Come on, let's go to the manager's side to watch the surveillance!"

Since Song Wen asked the store manager about the surveillance video before, the store manager has already called out several surveillance cameras in the store.At this time, I heard that they wanted to watch the surveillance for verification, so I gave them the entire surveillance room.

Song Wen compared the time: "It can be inferred from the previous alarm records, that is to say, we only need to check the monitoring in the corner of the fifth floor from 06:30 to [-]:[-] in detail."

Lu Siyu sat on the swivel chair and manipulated it. He quickly confirmed the video of that camera and started playing it.

Song Wen caressed the back of the swivel chair with one hand, supported the table with the other hand, and stood beside Lu Siyu.

Lu Siyu raised his head and glanced at Song Wen. From this angle, he could see Song Wen's side face. At this time, he had a serious expression on his face, and his eyes were fixed on the monitor in front of him. The white fluorescent lights reflected in the monitor illuminated Looking at his cheeks, he looked a little tough and handsome.It made his heart beat faster for a moment.

The monitoring began to play, and the electronic data that had been recorded formed an image, which was constantly changing.

Lu Siyu watched carefully, and the video in that place was like what the store manager said, it was about the financial room and the logistics department at the back, and some waiters could be seen walking around, taking things and invoices out of it.

"It can be faster." Song Wen said.

Lu Siyu pressed double speed, then thought for a while, and pressed quadruple speed.

Finally, the edge of a little shadow appeared in the corner of the video.

Lu Siyu pressed the pause button, and Song Wen leaned down beside him and observed carefully: "Looking at the shadow, it should have short hair and is relatively tall. This may be when Zhao Yuliang said he was going out."

The video was played for another minute, and another shadow appeared. The shadow appeared very quickly, and passed away in just a flash.

Lu Siyu paused, and took a few screenshots. Song Wen squinted his eyes and looked at it carefully: "I don't see it clearly, this shape..."

Lu Siyu thought for a while and said, "Could it be two people, such as Zhang Dongmei and Tan Shan walking over together?"

Song Wen frowned and said, "Let's look at the back first." This image is too blurry to judge at all, and I hope the back is clear enough.

The monitoring continues to play backwards.

"Here!" Song Wen saw it this time, and rushed to press the pause button.He suddenly leaned down and was so close to Lu Siyu that Lu Siyu could almost hear Song Wen's breathing, which made him lick his lips nervously, but Song Wen didn't care. He lowered his head and pressed his fingers on the keyboard. After a few clicks, I zoomed in on the picture.

Lu Siyu followed Song Wen's gaze.A little bit of blue light appeared in the corner of the screen, if it wasn't for Song Wen's sharp eyes, he wouldn't be able to see it at all.

Song Wendao: "This is probably what Tan Shan said, when she went down from the rooftop."

Tan Shan is wearing blue clothes today, and it is aqua blue, so it is easy to miss if you don't observe carefully. Fortunately, Song Wen's observation ability is excellent.

Then... it was time to test whether Tan Shan had lied.

The play button of the video was pressed again with a click, and both of them stared at the surveillance screen breathlessly.

Time passed by, and at the moment when they were almost sure that Tan Shan was the murderer, a red light suddenly appeared on the white ground on the screen.

The reflection of red on white is undoubtedly much more obvious than that of blue and other colors, although only a corner.

The red light stayed at the surveillance station for a moment, then hesitantly walked towards the rooftop.

Song Wen and Lu Siyu continued to watch, and adjusted the monitoring speed to normal. Half a minute later, the red flashed past again, at an extremely fast speed, as if they were running.

After the red, there was another shadow passing by. This was probably the time when Zhao Yuliang stepped down from the rooftop, and according to the current monitoring time, Zhang Dongmei should have died, lying downstairs in Mingyue!

Among them, only Ji Meiyun was wearing a red windbreaker all the time!

She was the last person to climb onto the roof. Ji Meiyun said she was flustered just now, and according to the reaction of the shop waiter just now, Ji Meiyun was the one who went down the stairs the fastest to reach the scene. Tan Shan followed her closely. Shan said that when she stepped off the platform, Zhang Dongmei was still alive.

Suspicion between Zhao Yuliang and Ji Meiyun suddenly increased, and Ji Meiyun had been saying just now that she had never been on the platform, and her lies made her look even more suspicious.

But why did Ji Meiyun kill her teacher?

She is a bride who is about to get married. At this time, she should not do such a murderous thing due to emotion and reason.

But monitoring won't lie...

Lu Siyu continued to lower his head and bit his nails, concentrating on it, his long eyelashes drooping down: "Ji Meiyun lied just now, she kept saying that she had never been on the rooftop..."

Anyway, they discovered Ji Meiyun's lie, she must have said that to cover up something, that could be their breakthrough.

"But according to Zhao Yuliang's testimony..." Song Wen said half a sentence, and suddenly realized, "No, Tan Shan said before that when they first played the big adventure, Zhao Yuliang said that she liked Ji Meiyun, so his testimony is not credible .”

The movement of Zhang Dongmei's fall was not small. Zhao Yuliang was on the rooftop, and he undoubtedly saw or heard something. He might also be lying, or even be an accomplice.

Song Wen straightened up, bowed his head and muttered silently: "But what is Ji Meiyun's motive for killing... Is it because of blackmail, or is it revenge for her past?"

Lu Siyu thought for a moment, licked his lower lip and said, "Do you feel that there are some problems with Ji Meiyun's narration just now?"

"What's the problem?" Song Wen asked.

Lu Siyu frowned, his eyelashes trembling slightly, thinking about how to describe this feeling: "That's... that's... She seems to hate Zhang Dongmei too, but what she said is not like that. As strong... When she talked about Zhang Dongmei, there was a feeling that I couldn't express."

Song Wen couldn't figure out the problem at first, but when he heard what he said now, he also realized something was wrong. The story Ji Meiyun told before was originally very sad, but her description of the first half was a bit understated.

Such a thing happened, and she was forced to abort her child. For a woman, it was a serious injury, and she should have an unforgettable memory...

But Ji Meiyun's description is like a bystander.

Lu Siyu frowned for a moment and suddenly said: "I figured it out! Maybe, the girl in front of us is not the girl from back then!"

Song Wen also thought of a possibility, he frowned and said: "You mean, the person who came to the party tonight is not Ji Meiyun at all, but her sister?!"

Today's special time, special location, destroyed physical evidence, and impossible forensic autopsy can only allow them to conduct an informal pre-trial here, and many steps have been simplified.

This kind of interrogation process relies more on the confessions of these people. Those confessions and witnesses can give them more information and outline the relationship among the characters, but they can also mislead them.

The teacher-student relationship that was confessed from the very beginning was the basis of this case, and they naturally entered into the misunderstanding that these people were classmates!

But memories can be wrong, people can lie, and reality may not match what they see.

If Ji Meiyun is not a student in this class, but the real murderer, she is obviously taking advantage of this to hide her identity.

Lu Siyu thought for a while and shook his head: "The ID card can't be faked. Zhang Ziqi recorded it against the ID card before. It is very likely that Ji Meiyun is my sister's name."

Song Wen asked: "Then why didn't the other students point this out?"

Lu Siyu said softly: "Because she and my younger sister are biological sisters, they look very similar. We haven't seen each other for many years. During the whole process, they kept calling her beauty..." That simple nickname has long been Replaced my sister's tongue-twisting name.

Song Wen opened the previous record sheet for checking. There was simple information on each person, including name, age, gender, mobile phone number, ID number, address, etc.After the incident, Zhang Ziqi asked everyone to fill it out separately. When they arrived, the work had already been completed, and Ji Meiyun's information was written in the last one, so no one noticed the abnormality, or someone found it. Did not expose her.

From the moment they took over the case, they subjectively locked the suspects in the case among these few parties, hurriedly checked the basic information of these people, and found that there was no criminal record, and did not dig further.

"What should her sister be called..." Song Wen hastily dialed Zhu Xiao's phone, "Zhu Xiao, can you call me the names of all the students in Teacher Zhang Dongmei's class who graduated from Nancheng Junior High School ten years ago?" .”

"Okay!" Zhu Xiao had been waiting in front of the computer tonight and was on standby at any time. At this moment, he got the order and began typing on the keyboard quickly. The student directory is not confidential information. After the student status is digitized, it is easy to find it.

Just 2 minutes later, a list was sent to Song Wen's mobile phone.

Song Wen held the phone in front of Lu Siyu, and the two of them checked it together, matching the names one by one.

Tan Shan, Zhao Yuliang, Qian Jiang, Meng Tiantian...these are all people they have contacted and interrogated tonight.Originally, they were strangers to these people, but after today's night, they are already very familiar with those names.

"Ji Meiyu..." Song Wen pointed to a name on the list, "My younger sister's name is Ji Meiyu."

He thought for a while and then sent a voice message on WeChat: "Zhu Xiao, please check the ID photos of the two names Ji Meiyu and Ji Meiyun. I want junior high school ID photos and adult ID photos respectively."

Soon, a few photos were sent, and the two sisters did look very similar.Song Wen zoomed in on the photo of the two of them, looked carefully, and concluded: "It's not wrong that Ji Meiyun is here today. Ji Meiyu has a tear mole under her right eye, her forehead is wider than her sister's, and her chin is wider than her sister's." Slightly shorter, but these features may not be distinguishable in the eyes of classmates who haven't seen them for many years."

Time will dilute everything, the memory will be blurred, and the appearance will slowly change.

In college or high school reunions, everyone may still have an impression of each other, but elementary school, junior high school... as time goes by, many names have long been unclear.

This is a very frightening question to think about. At a class reunion, can you be sure that the person sitting next to you and smiling at you is actually a classmate from your class back then?

What's more, Ji Meiyun and Ji Meiyu were originally sisters from the same school, they were like two bright flowers growing side by side, they looked similar, and they would confide in each other's hearts in the middle of the night.

This may be why Lu Siyu felt that Ji Meiyun was wrong, because in the description just now, she was talking about her sister's experience.

In her mind, the identity transformation must be carried out first, and then the description should be carried out.

She heard many things, not her own experience, so she couldn't describe them very empathetically.

Zhang Dongmei was not her teacher, and she had not had much direct contact with Zhang Dongmei in the past. Her reaction was not at all like a student who killed her teacher with her own hands, so she was able to muddle through the layers of questioning.

As for the name, Ji Meiyun may have used her younger sister's internet contact information to communicate with other people. After everyone met, they all called Ji Meiyu by her nickname—beauty.So some people don't even know that she is not a classmate in the class.

"Do you think Zhao Yuliang knows?" Lu Siyu asked while biting his finger.

"I think Zhao Yuliang probably knew about it. He should have discovered what was wrong with Ji Meiyun a long time ago." Song Wendao.

"Then what is your basis for judgment?" Lu Siyu raised his head and asked him.

"Have you ever had someone you like? If you dream about the person you like, his facial features, appearance, and expression will all be carved into his mind by a knife. After graduation, he will try his best to understand the other person Find the other person’s photo.” Song Wen lowered his head and looked at Lu Siyu with hot eyes, “If he really liked Ji Meiyu when he was in junior high school, he should be able to recognize that the person in front of him might not be his own. Classmate. After all, Ji Meiyun doesn't have that tear mole in the corner of her eye."

"So Team Song, did you have someone you liked when you were in junior high?" Lu Siyu continued to ask.

"Not in junior high school." Song Wen replied firmly, "But now."

Lu Siyu regretted asking that question a bit, his ears were red again, he lowered his head and said the question back to the case, he said softly: "Ji Meiyun is here to replace Ji Meiyu to participate in the class reunion, so what is Ji Meiyu doing now? "

Song Wen was also thinking of this, and the two said in unison: "This may be her motive for killing!"

Song Wen quickly said: "Zhu Xiao, check Ji Meiyu's big data file and try to contact her." He thought for a while and then said, "Other people also transfer a copy and send it to me quickly."

With the investigation of the case here, Tan Shan's suspicion has been reduced, and Ji Meiyun is more likely to be the murderer.

After Song Wen collected all the information, he did not forget to call Cheng Mo, and the three called Ji Meiyun to the temporary interrogation room again.

Ji Meiyun seemed a little surprised why she was called again, and she was not too clear about the progress of the interrogation. She looked at the three people in front of her with some doubts, her expression showing a little panic, then she lowered her head and fiddled with herself When she raised her head again, that trace of panic was replaced by indifference.

Cheng Mo didn't analyze the case with Song Wen and the others just now, so he didn't know why Song Wen suddenly shifted the object of suspicion, but he has learned to be smart. Looking at Ji Meiyun, he stopped talking and just waited for Song Wen to ask. talk.

Song Wen asked: "Ji Meiyun, did you lie during the interrogation just now? You were not a student in Zhang Dongmei's class at all, but your sister Ji Meiyu was."

Knowing that her secret was finally discovered by someone, Ji Meiyun simply put one slender leg on the other, crossed her arms and said, "Yes, I'm here to attend today's class reunion instead of my sister. In front of me, I have always used the identity of my sister. I thought it was difficult to explain this matter, so I lied. However, I think these have nothing to do with tonight's case, so I didn't confess before."

Now facing the three policemen, she finally told the truth, but in her words, there was no remorse or panic of being exposed.

"Do you still want to continue to quibble?" Song Wen continued: "We just checked the surveillance video of the rooftop and found that you were the last person to climb onto the rooftop. When you were on the rooftop, it was Zhang Dongmei who fell to her death from upstairs. Time, you are her murderer."

"I just walked to the door of the rooftop, and just as I was about to go up to the rooftop, the murder happened." Ji Meiyun's face remained unchanged, and she pushed back the question.She seemed to be sure that there were no cameras on the rooftop, probably because she had been on the rooftop, or she felt that if there was such definite evidence, the police would have suspected her long ago.

In fact, that video was only able to remove part of Tan Shan's suspicion, increasing the possibility that Ji Meiyun was the murderer, and it was still a little short of pinpointing her as the murderer.

Lu Siyu thought about it for a while, maybe it was because Song Wen used Zhao Yuliang's testimony to defraud her once, and this kind of tactic would not work well the second time. Ji Meiyun should have figured it out now, and the police may not have found the direct evidence. evidence.

"Your current explanation is still illogical." Song Wen looked at the woman and continued to ask, "What about your sister? Why did you come to the class reunion instead of her?"

Ji Meiyun lowered her head and did not speak.

Just as he was speaking, Song Wen suddenly received a message. He checked it out and looked at her seriously, "Ji Meiyun, we checked just now. Your sister died of illness three days ago."

Due to the short time of death, many registration procedures have not been completed, and the ID card and household registration have not been cancelled. This is the latest information they found when they tried to contact Ji Meiyu.

This timing is too coincidental. A substitute bride suddenly died of illness. Does all this have something to do with Zhang Dongmei?Most importantly, why did Ji Meiyun hide this?

This older sister didn't see the sadness of her younger sister's death. She didn't take care of her younger sister's funeral at home, but instead attended a class reunion here instead of her younger sister...

All this in itself is a huge doubt.

Suddenly something shiny appeared in Ji Meiyun's big eyes, she hesitated for a moment, then lowered her head, her long hair fell down on both sides of her beautiful cheeks, she said: "Officer, I just admit that today I Instead of my sister who passed away, there was a class reunion that shouldn't have happened."

Song Wen thought she was about to cry, but when she raised her head, he realized that Ji Meiyun's eyes were dry and without tears, but a sneer appeared on the corner of her mouth, "I said I was lying just now, but I didn't do anything else. As for my sister's death, it has nothing to do with what happened tonight, I came here only after I found out that there was such a class reunion in her mobile phone."

Song Wen asked: "Then why did you pretend to be your sister and not tell the truth to other classmates?"

Ji Meiyun hesitated for a moment and said: "I didn't deliberately hide my identity at the beginning, but they acquiesced that I was Ji Meiyu when they saw me. I discovered the nature of this dinner. I don't think this is a good time to confess the truth. I took advantage of the situation and played the role of my sister. In fact, I have been thinking about how to tell them the truth..."

She paused and said, "Officer, none of this has anything to do with tonight's case. If you don't have other evidence, I have nothing to say. And didn't you just say that Zhao Yuliang was on the rooftop? Did you?" Maybe he pushed Zhang Dongmei down?"

Ji Meiyun has now discovered the crux of the case, the evidence!

The video evidence they got can only point out that she had been on the rooftop at the last time.

The fact that she is not Ji Meiyu can only mean that she came to a class reunion instead of her younger sister.

All these can only prove that she is very suspicious, but not that she is the murderer of Zhang Dongmei.

Falling from a tall building is a way of death that is difficult to define whether suicide or homicide.

The police are still unclear whether Zhao Yuliang did anything on the rooftop.

Apart from Zhang Dongmei's body, monitoring, physical evidence, and confession, what else can be proved, what happened on the rooftop at that time?

One crucial piece of direct evidence is now lacking.

If they couldn't prove it and Ji Meiyun killed his confession again, it is very likely that in the end, the case would not be able to pinpoint the murderer.

The air in the room froze for a moment, both the judge and the judged fell silent, and even those who had seen the fireworks in the street below had already started to leave.

That grand performance has come to an end, but they haven't identified the real culprit yet.

A suspect looms, but there is no way to conclusively identify her incriminating evidence.

It seems that there is only one step away from the truth, but it has to stop here.

Lu Siyu raised his head and looked at Ji Meiyun. The woman in front of her was like a hot flame. Her tears had dried up a long time ago, and the corners of her eyes and brows showed a little smugness. red.

Lu Siyu's beautiful eyes suddenly moved, he thought of something, stood up from the table, took out the evidence gloves in his pocket, put them on, and walked straight to the woman in front of him.

Song Wen was a little puzzled, but he knew that Lu Siyu must have discovered something.

Ji Meiyun didn't seem to expect that the little policeman across from her suddenly made such a move at this time, her neck shrank slightly, and her beautiful eyes looked at Lu Siyu vigilantly.

Lu Siyu walked across to Ji Meiyun, and bent down a little in a gentlemanly manner.

For a moment, the eyes of the two met.

Lu Siyu faced Ji Meiyun's beautiful face and looked at her bright lips. If the woman in front of him is a murderer, then she must have excellent psychological qualities. She is bold, meticulous, and has excellent acting skills, like a cunning fox.

She dared to say that, because she had already confirmed that it would be difficult for the police to find any evidence. It is likely that she had considered it before. There were no traces, no witnesses, and if any evidence was left, she would definitely handle it carefully...

What is the truth tonight? !

Lu Siyu blinked his eyes, and suddenly stretched out two slender fingers wearing gloves, and grabbed the red silk scarf tied around Ji Meiyun's neck. Very well matched.

The silk scarf was tied with a loose button, and a red flower was tied on the side of her neck, making her even more pretty and beautiful.

With Lu Siyu's finger pulling, the red flower moved slowly, untied slowly, and finally was pulled down with his movements, turning into a light and fluffy red square scarf.

Ji Meiyun's eyes flickered for a moment, and her face suddenly turned pale.

Lu Siyu took the silk scarf in his hand, and then he said: "When I checked Zhang Dongmei's body earlier, I found out that the deceased fell from upstairs, and her rigor had already formed. Her left hand was Half a fist, and the right hand is a clenched fist. When I started to examine the corpse, I thought she might be holding something in her hand, so I used my hand to explore, but I found nothing..."

Having said that, Lu Siyu lowered his head and looked at the red silk scarf in his hand, "Now that I think about it, maybe when he fell from the building, the deceased did catch something in his hand, and the murderer was the first to go down the stairs." , and took away the things in her hand. This caused her right hand to still maintain a clenched posture when it was stiff."

"What exactly was Zhang Dongmei holding in his hand at that time?" Lu Siyu lowered his eyelashes, and asked Ji Meiyun softly in front of him.

Ji Meiyun looked up at him with her beautiful eyes, and after listening to Lu Siyu's words, she pressed her red lips tightly, feeling unprecedentedly nervous.The question he asked was not as aggressive as Song Wen, but pointed at the root of her fear...

Lu Siyu didn't expect her answer, his eyes fell on his right hand, his eyes mixed with light and dark: "I think it might be this silk scarf?"

Listening to Lu Siyu's description, a picture appeared in front of Song Wen's eyes. The last one to board the platform was Ji Meiyun. She didn't have much communication with Zhang Dongmei, and angrily pushed Zhang Dongmei off the guardrail.

Zhang Dongmei was caught off guard, she stretched out her hand, trying to catch something, at the moment of falling, she grabbed the red silk scarf around Ji Meiyun's neck, and the red silk scarf was untied in an instant, as Zhang Dongmei fell, fell down.

Panicked, Ji Meiyun ran downstairs in a hurry, and threw herself on the corpse before everyone else, blocking everyone's sight. Before people could react, she secretly pulled out the red silk scarf from the corpse's hand...

That is the decisive evidence that has been hidden all this time!

Lu Siyu's delicate face was still calm, and he clenched the silk scarf in his hand: "Zhang Dongmei fell to her death and coughed up a lot of blood foam before she died. Do you think this silk scarf might be held in her hand?" , will it be stained with some? Will the blood stains match the splatter marks? This silk scarf is red, and you don't want us to find out that you have less silk scarves around your neck than when you were eating before, so you put Tie the silk scarf back. If you let you go tonight, you will probably destroy the silk scarf, but unfortunately..."

Ji Meiyun once thought about whether to throw away the silk scarf, or go to the toilet to clean it, but she felt that either way would aggravate her suspicion.

She chose a more daring way of covering up, and tied the silk scarf back.

She may be only a short distance away from escaping, but the French Open is wide open, and there are no omissions...