Card Room

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【Chapter 545, the truth】

When Xiao Lou and Tang Ci went out together, Yu Hanjiang was waiting for them in the corridor. A man in police uniform leaned against the window, folded his hands on his chest, and frowned tightly, as if he was thinking about something.

Meeting Xiao Lou's gaze, Yu Hanjiang immediately took a step forward and whispered: "You asked your friend to find a good lawyer so quickly. Are you planning to let this lawyer defend you?"

Xiao Lou looked calm: "After all, I don't understand the law, and I don't know what to say and what not to say."

Tang Ci glanced at the two of them and said to Xiao Lou: "Professor Xiao, please don't worry, I will definitely restore your innocence."

Yu Hanjiang raised his eyebrows and looked at Tang Ci with a calm and sharp gaze, obviously not believing what he said.

Tang Ci nodded towards Yu Hanjiang, turned around and walked away calmly. Xiao Lou was escorted back to Cell No. 1. Yu Hanjiang stood at the door of the cell, looked at him through the bars, and asked, "Have you thought of any new clues?"

Xiao Lou sat on the wooden bed with a serious look on his face: "Captain Yu, don't you think there are a lot of strange things about this case?"

Yu Hanjiang motioned for him to continue.

Xiao Loudao: "The evidence you have, first, is the call record between me and Ning Xue; second, the hair of me and Liu Qiao found at the autopsy site, combined with the photos of me in Ning Xue's phone, it is inferred that I The relationship with her..." Xiao Lou paused and said firmly: "However, these two pieces of evidence are not the so-called 'ironclad evidence'."

"Oh? This is very unfavorable evidence for you. Is your explanation still that your mobile phone number was stolen and your hair was stolen?" Yu Hanjiang said coldly, "But this explanation is not very convincing, and neither are you. It may be possible to convince the judge with this explanation.”

"Captain Yu, may I ask where the deceased Ning Xue's cell phone was found?"

"She accidentally left her backpack in the square where the fireworks were set off on New Year's Eve..." At this point, Yu Hanjiang frowned suddenly, raised his head and met Xiao Lou's calm gaze, and he suddenly realized: " At 9 o'clock in the evening on the 31st, Ning Xue answered the phone, then came to the lake and was pushed into the lake. The time when we received the alarm was around 9:15 in the evening. Her mobile phone was lost in the square. If she was then She answered the call in the square, so she..."

"Then she wouldn't have time to rush back to the scene of the crime." Xiao Lou said calmly, "If it were normal, it would take 10 minutes to take a taxi from the central square to the Conservatory of Music. However, on the evening of December 31st, due to the fireworks in the square, Fireworks, celebrating New Year, as usual in previous years, there will be traffic control around the square, taxis need to go around, and she can't get a taxi at all."

"..." Yu Hanjiang's mind gradually became clear.

The location of the deceased's mobile phone did not match the time and place of the crime. This was the first loophole.

The previous reasoning was that Ning Xue answered Xiao Lou's call and went to the lakeside and was killed by Xiao Lou. But on the night of December 31, if she really answered the call, she answered the call at Fireworks Plaza at 9 o'clock and showed up at 9:15 In a conservatory, it's simply not possible.

That proves that the call at 9 o'clock was definitely not answered by Ning Xue herself. Her cell phone should have been in the hands of another person at that time.

Since it wasn't Ning Xue who picked it up, it wasn't Xiao Lou who beat him.

The mobile phone was only used as a tool to forge a false statement of "Xiao Lou and Ning Xue talking".

Seeing that Yu Hanjiang frowned and obviously understood what he meant, Xiao Lou continued: "Let me analyze it for Captain Yu. At 9 o'clock, the murderer must have seen Liu Qiao and me at the Conservatory of Music, so he used The 136 mobile phone number prepared in advance was called Ning Xue's number. If the murderer was a person, he would hit with his left hand and pick up with the right hand. After the crime, he would return to the Fireworks Square and throw away Ning Xue's mobile phone; if he had an accomplice, then he His accomplices were probably in the Fireworks Square at the time, cooperating with him in a play."

Yu Hanjiang nodded: "Ning Xue's death time was before 9 o'clock."

Xiao Lou said happily: "It seems that Captain Yu has noticed the key points of this case. I believe that with your level, you will be able to find the real murderer."

Yu Hanjiang gave him a complicated look and turned to leave.

Xiao Lou breathed a sigh of relief and lay on the wooden bed, staring at the ceiling thoughtfully.

The murderer's method of frame-up was indeed very powerful, but unfortunately, he ignored the details of "traffic control" that night, which caused problems with the time difference. Furthermore, the entire crime process was too idealistic, which easily aroused suspicion.

Now that Xiao Lou has pointed out the key doubts, it depends on whether Tang Ci and "Yu Hanjiang" can do their best.

***

After leaving the police force, Tang Ci immediately took a taxi back to the company.

Liu Qiao stayed in his laboratory because Liu Qiao was also a wanted criminal and it was not convenient for him to show his face. The only relatively safe place he could think of was his own smart laboratory.

In order to prevent the police from monitoring Liu Qiao's communication equipment, Tang Ci did not contact her along the way.

After returning to the laboratory, he found that the entire room was empty. Tang Ci was shocked and hurriedly called: "Liu Qiao?"

"I'm here."

A familiar girl's voice came to his ears. Tang Ci turned his head in the direction of the voice and found that Liu Qiao had turned himself into the size of a thumb and was lying behind the ear of an intelligent robot. Even if a hunter came to her door, it would be difficult to find her for a while.

Looking at the little girl with big fingers, Tang Ci couldn't help but curl his lips: "You know how to hide."

Liu Qiao made a light jump

He landed on the table in front and asked with concern: "How was the meeting with Professor Xiao? Did he tell you his next plan?"

Tang Ci sat down, opened his laptop, and entered a series of URLs.

Liu Qiao lay beside him and stared at the computer.

She couldn't understand the large string of garbled characters that appeared on the screen. She could only hear the crackling sound of Tang Ci's fingers tapping the keyboard quickly. She waited patiently for a moment. Suddenly, the light on the screen lit up, and dozens of surveillance cameras appeared at the same time. Camera.

The densely packed surveillance windows look like the police handling a case.

Liu Qiao was surprised: "You have invaded the surveillance system? Where is this surveillance system?"

The blue light from the notebook shone on the man's fair face, making his skin almost transparent.

While typing on the keyboard, he said calmly: "The surveillance in the music school and the medical school next door covers most of the school area. We have to check one by one."

Liu Qiao immediately cheered up, changed himself back, and sat next to Tang Ci: "There are too many, let's check them separately."

Tang Ci found another computer, gave her half of the video, and said, "You came to check the medical school. You are more familiar with the environment of the medical school than I am. The surveillance near the anatomy room in the laboratory building must have been destroyed. But the surveillance on the main road is basically still there. Let’s see if Zhang Hengyu has appeared in the surveillance.”

Liu Qiao nodded and started to double fast forward, searching one by one.

Tang Ci is in charge of the video of the Conservatory of Music. He first checked the video of the lakeside after 8 o'clock last night - the camera on the lakeside was destroyed, making it difficult to capture the students passing by; and near the gymnasium, there were also several key cameras that would be destroyed. There are many blind spots that cannot be captured by surveillance cameras.

The murderer was very cunning and had made preparations in advance at the conservatory.

Tang Ci had no choice but to continue to expand the scope of his search.

Balloons, Xiao Lou once mentioned this keyword. When Xiao Lou and Liu Qiao walked out of the backstage, they saw a man in the corridor leaning over to sort out the remaining balloons from the event.

Tang Ci looked for balloons in all the surveillance cameras, and sure enough, a large number of colorful balloons were found in the surveillance cameras in the "Student Activity Center" building, which should be consistent with the balloons that were arranged at the scene that night.

At 18:30 in the afternoon, several students rode bicycles, carrying packages containing several bags of balloons, banners and other props, and headed towards the stadium. At the fork in the road to the stadium, these people lost track because the surveillance camera was destroyed, but if you think about it, you know that they must be the staff who went to decorate the final venue.

Tang Ci enlarges the picture——

That night, all the staff were wearing a blue sign that looked like "Volunteer" around their necks, and most of them were wearing black clothes. A total of 5 staff members were photographed carrying balloons and banners. , 3 men and 2 women, they were talking and laughing all the way. They should all be students at the Conservatory of Music and are very familiar with each other.

Tang Ci called up the surveillance camera at this fork in the road and checked the video after the event ended at 10pm——

At 10 o'clock in the evening, the singing competition ended, and a large number of spectators poured out of the stadium. Within a few minutes after the event ended, the instantaneous flow of people was too large, and due to the dim light at night, it was difficult to find clues from the surveillance.

Tang Ci had no choice but to enlarge the surveillance screen and watch it second by second, not missing every frame.

He didn’t know how long he had been watching, but just when he thought his eyes were going to go blind, he suddenly saw a figure in the crowd——

That person was not much different from the students around her. She was quite tall, over 1.7 meters tall. She was wearing a long black coat and a hat covering her face. In winter, it was not unusual to dress like this. However, Tang Ci noticed that she Her clothes looked familiar, and she was carrying a big schoolbag behind her.

Comparing the five people he saw before with balloons to the event, he found that the similarity of their clothes reached 100%.

In winter, of course there are students wearing the same coat, but this person's clothes have a special feature - a deflated red balloon accidentally hangs on the lower left corner of the coat.

She was left alone.

The staff should have tidied up the scene with their companions before leaving. Why did she leave early?

She disappeared at the end of the road destroyed by surveillance, and she didn't know where she went.

During the surveillance after 10 pm, she was wearing a hat and could not see her face clearly. However, at 6:30 pm, when she and her companions were carrying balloons to the venue, her frontal face was photographed!

Comparing her clothes, it is easy to identify which one of the five she is.

Tang Ci took a screenshot of this face and entered it into the database of the Conservatory of Music for data comparison, and quickly got the result——

"Chen Mengmeng, 20 years old, a junior student in the vocal music department, is in the same class as Ning Xue and lives in the same dormitory."

When Liu Qiao heard this, he immediately came over to look at Tang Ci's computer: "Is she targeted as a suspect?"

"Look, in this photo, does the black coat look familiar?" Tang Ci asked.

Liu Qiao recalled for a moment: "I seem to have seen it somewhere... By the way, when Professor Xiao and I came out from the backstage last night, we saw a man squatting in the corner arranging balloons. I didn't see the man's face clearly. But look at this Wearing clothes, it should be her!"

"Professor Xiao suspects that someone has been secretly watching you. When you walked out of the gym, he called Ning Xue to create so-called evidence of the call." Tang Ci squinted and looked at the enlarged photo on the computer. The girl had delicate features and lips. There was a faint black mole on his corner. He said: "The person spying on you is probably Ning Xue's roommate Chen Mengmeng, the real culprit who killed Ning Xue."

Liu Qiao didn't have much impression of Chen Mengmeng, but when she carefully recalled the police meeting minutes recited by Xiao Lou, she suddenly

Ran remembered some details: "I remember that Professor Xiao was hiding in the police force and eavesdropping on their meetings. The field team once mentioned that when visiting the roommates of the deceased, one of the roommates named Chen Mengmeng took the initiative to mention that Ning Xuezhen had I have had two boyfriends, and my ex was obsessed with Ning Xue and clearly reported the location of Ning Xue and Zhang Hengyu’s date last night.”

Tang Ci said: "Then, the police found Ning Xue's bag and mobile phone in the square where they were dating."

Liu Qiao's eyes lit up: "In other words, this Chen Mengmeng is intentionally or unintentionally leading the police to find evidence?"

Tang Ci also felt that this possibility was very high. He frowned and thought for a while, then said: "Why would Ning Xue go to the lake alone? Unless someone she trusted asked her to go, and that person also knew Which tree by the lake has the names of Ning Xue and Zhang Hengyu engraved on it? Overall, they are most likely to be roommates. As for why the mobile phone appeared in the square, it is most likely that the murderer killed Ning Xue and obtained her mobile phone to forge it. After collecting the evidence of the call, since you and Professor Xiao had already gone to the lake and the police would arrive soon, she did not dare to put her phone at the lake, so she had to hide it in her backpack and wait until the concert was over. Throw your phone in the central square."

The more Liu Qiao thought about it, the more it made sense. She went on to analyze: "My roommate Xu Mingyue went to the library that night and passed by the lake. A tire was punctured on her bicycle, and she screamed to attract Professor Xiao and me; Chen Mengmeng, as a student in the same dormitory, You must be very aware of Xu Mingyue's habit of going to the library every night, so you put nails on the road where she passes in advance?"

Tang Ci said: "Furthermore, Chen Mengmeng is a staff member of the singing competition that night. He is very close to the lake and can clearly grasp the movements of the lake. Suppose, at 8:30 in the evening, she invites Ning Xue to the lake to chat and pushes Ning Xue away. Go to the lake, take Ning Xue's cell phone, and then go backstage to ask someone to give her an alibi. The police initially believed that Ning Xue died after 9 o'clock, and Chen Mengmeng's alibi was actually invalid. She died at 8 p.m. At half past o'clock, I must use an excuse like 'going to the toilet' to go out."

Liu Qiao: "…………"

Such a girl hidden in the crowd was almost ignored by them.

Liu Qiao said solemnly: "What about the murderer who killed Zhang Hengyu?"

Tang Ci said: "In this world, since we have teammates, there will not only be one hunter, she also has accomplices."

Liu Qiao rotated the laptop 90 degrees and pointed it to Tang Ci: "My surveillance camera saw Zhang Hengyu leaving the medical school at 4:30 pm, returning at 9:00 pm sharp, and heading towards the direction of the laboratory building. Because the laboratory building All the surrounding cameras were destroyed, and no other suspicious targets were seen approaching here." She couldn't help but wonder: "How did the murderer get in?"

Tang Ci glanced at the surveillance camera and said calmly: "The murderer didn't go in, but never came out."

Liu Qiao quickly reacted: "You mean, the murderer has been waiting for him in the laboratory building for a long time?"

Tang Ci said: "This is the only explanation. Otherwise, why would Zhang Hengyu go to the laboratory building alone so late at night?"

Liu Qiao followed this train of thought and said: "The person who allows Zhang Hengyu to enter the laboratory building without any precautions must be someone he trusts. And the person who can stay in the laboratory building without attracting attention should be... from the school teacher?"

Tang Ci said: "If the teacher asks the students to help with the experiment, the students will naturally not be suspicious, especially a monitor like Zhang Hengyu who is more serious about studying, and might be proud of it. He made an appointment with Ning Xue to go to the square to watch the fireworks that night , why did they come back early? It is very likely that they each received news from someone they trusted and had to change their plans."

Liu Qiao frowned and thought carefully - she was not familiar with the Department of Forensic Medicine, but Professor Xiao seemed to have mentioned that he had a teaching assistant?

I remember that at that time, in order to concentrate on investigating the case, Professor Xiao even asked the teaching assistant to teach for him, so he went to the office to send an email to the teaching assistant...

Liu Qiao reacted suddenly: "Teaching assistant! That teaching assistant often helps Professor Xiao teach. It is easy to get close to Professor Xiao, know Professor Xiao's whereabouts, and steal his phone number card!"

The two looked at each other and stood up immediately.

Tang Ci picked up the car keys and turned around to go out: "Find these two people as soon as possible. If they run away, Xiao Lou will not be able to clean up."

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