The atmosphere in the monitoring room at Zhongjiang Station was extremely tense. Guan Jie, the criminal police detachment leader of the Zhongjiang City Police Station, personally took charge and investigated the activities of the deceased Huang Kangcheng after he entered the station overnight.
Zhongjiang Station has two entrances. After asking Mr. Wang who sent Huang Kangcheng to the station, he confirmed that Huang Kangcheng entered the waiting hall from the north entrance.
Technicians first called up the camera outside the north entrance and found that Huang Kangcheng got out of a Mercedes-Benz at 11:01. After shaking hands with the driver, he took his backpack out of the trunk and put it on his shoulder.
At this time, you can clearly see that there are no water bottles in the mesh pockets on both sides of the backpack.
The video of the entry security area can also clearly see that there is no water bottle in Huang Kangcheng's backpack.
It can be seen from the video at the ticket gate that when Huang Kangcheng entered the station at 11:17, he had a water bottle inserted into the pockets on both sides of his backpack. This shows that Huang Kangcheng purchased two bottles of a certain brand of green tea drink at the station.
, and then insert it into the mesh pockets on both sides of the backpack.
Technicians began to search for Huang Kangcheng's activities in the waiting hall. Through a higher-positioned camera, they finally found that Huang Kangcheng had entered the Tielv Supermarket in the waiting hall. Because the cameras in the Tielv Supermarket were not connected to the station's monitoring system,
, the criminal investigation personnel immediately retrieved the surveillance video of Tielv Supermarket.
We can see from the video above the checkout counter of Tielv Supermarket that Huang Kangcheng did buy 2 bottles of green tea at Tielv Supermarket. He opened one bottle on the spot, took a few sips, inserted it into the net pocket on the left. Then he picked up the other bottle without
The open green tea is inserted into the mesh bag on the other side.
After Guan Jie discovered this situation, he immediately arranged for someone to go to Tielv Supermarket to check the production date of the green tea, and at the same time got in touch with Dr. Qiao.
Dr. Qiao quickly provided the production dates marked on the mouths of the two bottles of green tea drinks. The production date of the non-toxic bottle was 20200413, and the production date of the poisonous bottle was 20200327. The criminal investigators reported back from the supermarket that all the bottles in the supermarket had this production date.
The production dates of all brands of green tea are 20200413.
Based on this news, Guan Jie and others analyzed that someone must have taken the opportunity to drop the bag for Huang Kangcheng after he bought the drink. So where did the murderer drop the bag of the drink?
The technicians continued to check the video. A camera on the platform was facing the boarding area of Car No. 2 of the train, and the passengers could clearly be seen boarding the train. From the video, it was seen that Huang Kangcheng was carrying a bag with both sides of the bag on his back.
With a bottle of green tea in each hand, they boarded the train bound for Haizhou at 11:26.
"Wait a minute, rewind the video just now." Guan Jie said.
When the video played to the moment when Huang Kangcheng got into the car, Guan Jie said stop.
"Look, the label on the green tea bottle on the right is facing outward at this time. Then turn on the video of Tielv Supermarket to see where the label was when the green tea was first sold."
The technician reopened the video of Tielv Supermarket, adjusted to a clear picture and pressed the pause button.
"Look, the green tea label is facing inward at this time. This means that someone did switch the drink before Huang Kangcheng got in the car."
"Then let's take a look at the video directly facing the ticket gate, where we can see the back of the passenger," the technician said.
"OK."
After calling up the video on the opposite side of the ticket gate, Guan Jie and the others discovered that the green tea label on the right side was facing inward when checking in.
"Does it look like the murderer dropped the bag on the overpass?" Guan Jie said.
Technicians began to search for surveillance videos of the inbound overpass and the elevator entrance to the overpass.
"Look, Team Guan, this man is walking behind Huang Kangcheng, holding a bottle of green tea drink in his hand." The technician pointed at the computer screen and said.
"Okay, keep an eye on him and watch what he does next."
From the videos of several cameras on the inbound overpass, we can see that behind Huang Kangcheng is a short, thin man wearing a gray jacket who has been following him. The man always has a bottle of wine in Huang Kangcheng's bag.
Green tea drinks of the same brand.
Huang Kangcheng and the man in the gray jacket turned and entered the escalator from the overpass to the platform. The surveillance video was transferred to the camera above the escalator. The man in the gray jacket was very close to Huang Kangcheng when he got on the escalator. He was close to Huang Kangcheng.
Kang Cheng's back. The man in the gray jacket took the green tea drink in his hand to his chest. At this time, because the elevator was going down, the camera above the escalator could no longer see the next move of the man in the gray jacket.
The camera switched to the camera located below the escalator. Through the video of this camera, it can be clearly seen that the man in the gray jacket pulled out Huang Kangcheng's drink bottle with his left hand on the escalator, and inserted the drink bottle he was holding with his right hand. And this
At that time, Huang Kangcheng didn't feel anything.
After identifying the murderer, technicians quickly extracted a clear photo of the murderer, compared it with the station's identification system, and found the criminal's identity information and ticket and seat number.
The criminal is named Zhong Hongcai, a 38-year-old Haizhou native. He purchased a hard-sleeper ticket from Zhongjiang to Haizhou. The seat information on the ticket is No. 23, upper berth in Carriage 7.
The information was quickly transferred to Dr. Qiao's mobile phone. Dr. Qiao sat up from the bunk in excitement and hit his head on the upper bunk due to excessive force. He ignored the pain and immediately reported the news to the group.
Dr. Qiao: The murderer has been found!
He Xiaohui: Ah, where is it?
Deng Ru: Great!
Dr. Qiao: In the upper bunk of No. 23 in Car No. 7.
Ding Yiran: Shall we catch him now?
Dr. Qiao: I will go with the train conductor to confirm whether the person is still there. Then we will discuss the action plan.
He Xiaohui: Okay, be careful not to alarm the other person.
Dr. Qiao suppressed his excitement and asked the conductor to walk together to Car No. 7. Since the train was traveling at night, the lights in the car had been turned off, leaving only the aisle lights at the bottom of the car.
The conductor patrolled along the carriage with a flashlight. From time to time, she reminded passengers to take care of their valuables, and did not forget to tidy up the curtains that had been messed up by passengers. When they came to bunk No. 23, the conductor illuminated the upper bunk with a light.
, Dr. Qiao saw a man lying on the upper bunk. Since the man was facing inward, he could not see his face clearly, but he could see the gray shirt he was wearing. In order not to alert others, Dr. Qiao and the train conductor did not alert the people on the upper bunk and patrolled
After that, I returned to the box in Car No. 1.
Dr. Qiao: Team He, it has been confirmed that there is someone in the upper bunk on the 23rd, and the color of the shirt is consistent with that in the video.
He Xiaohui: Okay, Deng Ru and Yiran, you go and meet with Dr. Qiao to discuss how to arrest the criminals.
Deng Ru, Ding Yiran: Received.
Dr. Qiao: Car No. 1, Box 9.
In box No. 9, Dr. Qiao, Deng Ru, Ding Yiran, the conductor and the police were discussing how to catch the murderer.
"We need to confirm the appearance of the murderer before making an arrest."
"That's easy to do. We will conduct a ticket check for the entire train before arriving at the station. By then, the passengers will have woken up from sleep, so it will be very convenient to confirm." said the conductor.
"When will the ticket checking start?" Deng Ru asked.
"It's half past five as planned."
"We need to formulate an arrest plan in advance to prevent the murderer from jumping over the wall, committing extreme acts, and threatening the safety of passengers," Deng Ru said.
"Yes, when are we going to catch him?"
"At least wait until he comes down. If he is on the upper bunk, it will be difficult for us to take action."
"Yes, should he take action immediately after he gets off the bus? Or should he wait until he gets off the bus?"
"There are many people in the carriage, so I'm afraid of injuring the passengers if I take action."
"But if we arrest him after getting off the car, will he be able to escape?"
"I can inform the police at the station in advance and ask them to wait on the platform," the police officer said.
"No, if a large number of police appear on the platform, the murderer will be discovered early. If he behaves excessively in the car, it will be difficult to handle."
"Then let them all wear plainclothes," the policeman said.
"It's okay to wear plainclothes. Ask them to block the car door directly. We will follow the murderer and attack him from both sides."
"But which car door is it at?"
"This is easy to do. We can lock one door and ask all passengers to get off from the same door." said the conductor.
"Okay, then Yiran and I will follow him. The police will get out of the car first and get in touch with the people on the ground. They will take action when the murderer walks out of the car."
"Okay, then I'll notify the station right away."
"Don't want too many people, just four people." Deng Ru explained.
Everyone discussed the plan, and Dr. Qiao told He Xiaohui the news in the group.
Dr. Qiao: Team He, the plan has been decided. Arrest the murderer when he gets off the bus. The police at the station have been contacted to block the murderer's path.
He Xiaohui: Okay. I can't leave here for the time being. I have to prevent the killer from attacking Duan Rumeng. Thank you for your hard work.
Deng Ru and Ding Yiran carried their bags to Car No. 7 before checking the tickets. Ding Yiran sat very close to the No. 23 bunk, while Deng Ru sat a little further behind the No. 23 bunk.
The people were attacking from the front and back, sandwiching the murderer in the middle.
The conductor and the conductor in Car No. 7 checked the tickets together. When they arrived at No. 23, the sound of checking tickets had already woken up the murderer in the upper bunk. He took his ticket, stuck his head out and handed it to the conductor.
The conductor carefully checked the name on the ticket, then handed the ticket back to him and said:
"The bus will arrive at the station soon. Don't sleep. Come down and pack your things."
Ding Yiran looked at the murderer who stuck out his head and checked it with the photo of the murderer on her phone. She then sent a message to the group.
Ding Yiran: The verification is correct, he is indeed the murderer.
The train was about to arrive at the station, and the conductor came to the carriage and shouted to everyone:
"Attention passengers, the rear door cannot be opened. Please get off the car through the front door."
The train slowed down slowly, and the policeman was already standing at the door in front of Car No. 7. Passengers picked up their luggage and moved towards the door in front. Ding Yiran stood there without moving. The murderer stood in the aisle where he had made his bed,
Holding the bag in one hand and preparing to get out of the car, Deng Ru quietly squeezed in behind the murderer.
The train entered the station, and the police officer saw three police officers in plainclothes on the platform. After the door opened, the police officer was the first to get out of the car, and then stood in front of the door to remind the passengers getting off to be careful of the gap under their feet. At the same time, he and the 4 police officers on the platform
The plainclothes officers made eye contact, and the four plainclothes police officers were divided into two groups and lined up on the left and right of the car door.
The passengers were walking slowly in the carriage. Ding Yiran deliberately gave way to the murderer at the corner of the carriage leading to the door, so that she and Deng Ru stood side by side behind the murderer. In front of the murderer was an old lady.
, she walked very slowly, and when she got out of the car, the policeman walked to the side of the car to support her.
Just after the policeman helped the old lady out of the car, Deng Ru and Ding Yiran took action at the same time. One of them grabbed one of the murderer's arms. The murderer was startled by the sudden arrest. He subconsciously ran forward, his
As soon as his feet touched the platform, four plainclothes men pushed him down on the platform and pinned him down. Deng Ru took out the handcuffs and quickly cuffed his hands tightly behind his back, then pressed the murderer and quickly