The fat man was confused by Gu Chen and Lu Weiwei's question. Why did he come up with the idea of his own drone?
It can be seen that the eyes of the two people are sincere, but they don't want to be joking, so they also ask weakly: "Can you play?"
"Don't we still have you? Why don't you lend it to us?" Lu Weiwei said shamelessly.
The fat man's eyes were blank, but after thinking for a moment, he readily agreed: "You want to take aerial photography, right? I can take some material for you for free, now or when?"
"wait for me a while."
As soon as the fat man agreed, Gu Chen walked directly to the nearby 24-hour convenience store.
Not long after, Gu Chen walked out of it, holding a bag of things in his hand.
The fat man took a closer look and found that it was a razor blade. He suddenly looked solemn and confused.
Gu Chen directly removed one of the blades of the Fat Man's drone and began to use strong glue to glue one of the sharp blades to the blade of the drone.
After completing the operation, Gu Chen waited quietly for a few seconds, then suddenly walked to the trash can on the roadside, found a piece of discarded foam, placed it under a big tree, and reminded:
"Help me operate the drone, fly over here, and help me cut through this bubble."
"Cut...cut the foam?" It feels like Gu Chen is almost 20 years old, right? Why does he still love to play like a child?
Are today’s police officers so boring?
Although he didn't know Gu Chen's intention, after all, the police did him a big favor.
Not only did he save himself from being beaten, but he also saved his drone.
Even if this young policeman is bored enough, then I might as well accompany him to be bored.
After debugging the drone, the fat man placed the drone on the ground, then placed his mobile phone on the operating handle and began to carefully debug it.
Since the blades have sharp blades glued to them, they are also more cautious to operate.
Gu Chen and Lu Weiwei stood on the left and right sides of the fat man, quietly watching the man operate.
After a while, only a "buzz" sound was heard, the four blades of the drone began to rotate rapidly, and the drone slowly approached the foam.
"Can your night camera see clearly?" Lu Weiwei asked him.
The fat man said confidently: "No problem, after all, mine has 20 million pixels and uses a Hasselblad 1-inch lens."
"If you pay attention to the focus at all times during operation, it should be an indisputable fact that you can shoot relatively high-definition works."
"I don't need you to take a very clear picture. I just want to be able to accurately see the way the blade cuts through the foam in the lens. Is this kind of operation possible?" Gu Chen is also more pragmatic.
After all, I am not doing such boring tricks just to confirm whether the drone at night can do what I want.
The fat man also roughly understood what Gu Chen meant. Although he didn't know what the intention was, he still reluctantly operated it.
On the screen of the mobile phone, the drone was positioned according to the lens and began to slowly fly towards the bubble.
Just as it was approaching the bubble, the drone suddenly issued an obstacle avoidance warning and paused again.
The fat man was unsure and turned to look at Gu Chen.
Gu Chen, on the other hand, said resolutely: "Fly over there. If the drone is damaged, we will be responsible for compensation."
"Okay, just your words will do." After receiving Gu Chen's accurate endorsement, the fat man no longer hesitated and directly pushed the operating handle forward.
As the drone swooped forward with a buzzing sound, the long foam strip placed next to the tree was instantly cut into two pieces.
The drone only shook slightly, but with the fat man's timely adjustment, it returned to a stable state in an instant.
"That's it." Gu Chen was overjoyed, and his tense nerves finally relaxed.
The fat man quickly parked the drone to one side, while Gu Chen and Lu Weiwei quickly stepped forward and picked up the cut foam on the ground.
Lu Weiwei came over and said, "Junior brother Gu, look, the incision is very clean. This is just foam. If it were a human throat, it must have been sealed with a knife."
"That's right." Gu Chen looked solemn, but he also recovered from his imagination: "This is just an ordinary modified drone, only one blade has a blade glued on it."
"I can't imagine how terrifying the result would be if all four blades of the drone were equipped with modified sharp blades?"
"So this is why there are no footprints at the crime scene?" Lu Weiwei couldn't help but smile as her auntie.
It felt like I had been investigating for a long time, and finally all the doubtful points were explained clearly with this late-night snack.
Lu Weiwei thought to herself that if she didn't eat a hearty late-night snack, she seemed to be sorry for her buzzing brain.
"Here." Gu Chen returned the drone to the fat man and said seriously: "If I break one of your blades, I will pay you how much."
"Are you kidding me?" Seeing that Gu Chen was serious, the fat man who took over the drone also took a step back and complained:
"Isn't it just that the blade was stuck by 502? It's okay. I'll pull the blade off when I get back and scrape off the glue residue. What a big deal."
"Okay, but I still want to thank you. Why don't we come over for a supper?" Seeing that the fat man was easy to talk to, Gu Chen took the initiative to invite him over for a supper.
The fat man glanced at the men and women at the table who had not yet left, and suddenly felt guilty and said: "No... no need, if there is nothing else, I have to go home quickly, and I have to go to work tomorrow, so I won't disturb you.
"
As soon as he finished speaking, the fat man left quickly, feeling that everyone he met tonight was weird.
Gu Chen, on his side, was also extremely happy.
The mystery that had troubled him for a long time was finally solved. Gu Chen instantly felt relieved. This was definitely the biggest breakthrough tonight.
Without any time to think about it, Gu Chen immediately took out his cell phone and started to contact Officer Wang.
The phone beeped briefly. Officer Wang, who was sleeping in the Furong branch office, weakly answered the call: "Hey, Gu Chen, how is your investigation going? When will you be back?"
"Senior Brother Wang, we are still eating supper outside."
"Supper?" Upon hearing that Gu Chen and Lu Weiwei were enjoying themselves outside, Officer Wang immediately became a little autistic, and quickly raised his voice and said, "Then can you bring back some chicken legs, duck legs, etc.?"
"Senior Brother Wang, I have something serious to discuss with you."
"Serious business? Eating... is very serious, right?" Officer Wang also said with a smile.
Gu Chen laughed dryly and explained seriously: "I already know how the murderer committed the crime."
"Really or not?" After hearing what Gu Chen said, Officer Wang, who was lying on the folding bed in the office, stood up instantly and couldn't help but say:
"what happened?"
"I can't explain it for a while now." Gu Chen paused for two seconds and explained seriously: "You ask Senior Brother He to help you check whether this Zhang Wenkai likes aerial photography?"
"Wait a moment." Officer Wang here just responded, but soon there was no movement.
Not long after, Gu Chen heard He Junchao's wailing on the phone, as if he was awakened from a sweet dream by Officer Wang.
After a while, Officer Wang replied: "I asked He Junchao to investigate. You can bring some food back now. You guys are still hungry."
"No problem." Gu Chen grinned and hung up the phone happily.
In the following time, Gu Chen and Lu Weiwei had a great appetite and ordered a lot of late-night snacks. After their taste buds were completely satisfied, they brought a few late-night snacks and hurried to the Furong branch.
…
…
Back at the branch, it was already 1:50 in the morning.
When Gu Chen and Lu Weiwei pushed open the door, Officer Wang and Yuan Shasha were still lying on the folding bed and resting, while tool man He Junchao stared at the computer and was still checking for clues.
"Senior Brother He." Gu Chen put down a midnight snack and reminded him, "Eat something first."
"Gu Chen." He Junchao took the midnight snack and reminded him, "How did you know that Zhang Wenkai likes aerial photography?"
"Is it true?" Gu Chen came over and said.
He Junchao nodded silently: "Yes, I have called many surveillance cameras on the Tianlu Yaju construction site for investigation, and I found that Zhang Wenkai once played with a drone on the construction site."
"And not only that, people on these construction sites are engaged in team building, and Zhang Wenkai has also taken aerial footage for everyone. It can be said that this guy is an experienced player."
"Later, I checked Zhang Wenkai's many social platforms and found that he is really an aerial photography enthusiast."
"That's right." After receiving He Junchao's affirmative reply, Gu Chen's confidence increased a bit.
At this time, Officer Wang and Yuan Shasha, who had woken up, also took the supper from Lu Weiwei's hand, came to Gu Chen's side, and asked in a low voice:
"Gu Chen, what did you find on the riverside tonight?"
"I didn't find anything, but it seems I found everything." Gu Chen said.
Officer Wang's eyes were stunned: "Why do your words sound like nonsense literature?"
"So Brother Gu has found a clue?" Yuan Shasha was also very curious.
Gu Chen didn't show off, and nodded directly and admitted: "That's right, although we didn't find any clues on the riverside, through a drone experiment, I seem to have found Zhang Wenkai's murder method."
"Method of murder? Drone?" Officer Wang hadn't woken up from his sleep and couldn't react for a while.
Lu Weiwei, who couldn't stand it, was also impatient, and immediately reminded her: "Old Wang, have you ever thought about installing sharp blades on the blades of drones, and then using drones to kill people?"
"What?" Upon being reminded by Lu Weiwei, Officer Wang's eyes flashed, and he suddenly realized.
As soon as he patted his thigh, Officer Wang also said excitedly: "Oh, why didn't I think of this? We have thought about such a simple truth for so long."
Looking up at Gu Chen, Officer Wang also asked with confirmation: "So Gu Chen, this Wang Baocheng and He Jun all died from this kind of drone killing method, right?"
"If this is the case, then the murderer can hide on the other side of the river, directly operate the modified drone, and use the blades on the blades of the drone to kill Wang Baocheng and He Jun on the other side without leaving any footprints.
The recruitment is really high."
"So that's it?" Listening to Officer Wang's explanation, Yuan Shasha was also surprised, feeling that the truth was actually like this.
Gu Chen also said cautiously: "This is just a reasonable speculation, but whether it is feasible or not, we just did a simple experiment tonight."
"I just went to the supermarket and bought a blade, and used 502 glue to stick it on the drone blade, but I successfully cut a strip of foam into two strips."
"I think that if we want to verify the circumstances of the crime, we must conduct careful experiments. At least we can prove that Wang Baocheng and He Jun both died from this murder tool."
"Yes, you must proceed with caution." Officer Wang walked back and forth in the office, suddenly kicked He Junchao's stool and reminded him:
"He Junchao, please quickly investigate the surveillance videos of the past week and see if Zhang Wenkai has ever bought anything like a razor blade."
"I'm looking for it, don't worry." He Junchao did a few simple operations, then pulled out several video files and reminded:
"Anyway, Zhang Wenkai doesn't leave the construction site very often. The last time he left the construction site, apart from going to your team building in Wangjia Village, he went to this nearby supermarket a week ago."
"Then where is his travel bag now?" Gu Chen asked again.
He Junchao replied: "Judging from his return to the hospital that night, after he still entered the blind spot of the alley, he changed his previous clothes and came out from another exit. His things should still be in the alley."
"But don't worry, I have already notified Ding Liang and Huang Zunlong to look for them. I think there should be results soon."
"Can't wait." It was getting closer and closer to the truth. Gu Chen didn't have time to think about it. He took out his mobile phone and started to contact Ding Liang and Huang Zunlong.
After a while, Ding Liang's cell phone was connected and he asked directly: "Gu Chen, what's the matter?"
"Where are you now?" Gu Chen asked.
Ding Liang said with some frustration: "In a small alley near the hospital, Senior Brother He asked us to search for a travel bag, but we have been looking here for a long time and just can't find it. It's really annoying."
"Send me your location and I'll come over now."
"What? Are you coming here?" When he heard that Gu Chen was coming, Ding Liang said with some distress: "Gu Chen, it's already 2 o'clock in the morning. You should take a rest. Besides, we have a lot of people here.
You’re not the only one.”
Originally, he wanted Gu Chen to have a good rest, but after all, no field team could be found, so it was in vain for Gu Chen to come over.
Thinking about it, it would be better to let Gu Chen stay at the police station.
But Gu Chen was resolute. After a brief conversation on the phone, Gu Chen hung up the phone and prepared to pack his things again and go to the alley.
Officer Wang was a little shocked and said: "Gu Chen, aren't you tired? It's already 2 o'clock in the morning."
"I would rather investigate the case than rest." After putting on his police equipment, Gu Chen glanced at Lu Weiwei.
Originally, I wanted to go alone, but I didn't expect that Lu Weiwei had already put on her equipment and seemed to want to go out with Gu Chen.
Gu Chen understood Lu Weiwei and didn't say much. The two nodded tacitly and left the office again.
Looking at the two disappearing figures, Yuan Shasha hesitated and said: "Are these two people really exhausted? I would definitely collapse."
"Lu Weiwei will definitely be exhausted, but Gu Chen, this guy has always been a hard worker. As long as there is a case, he is like a chicken blood, and he never feels tired."
"Lu Weiwei just follows Gu Chen and has a little bit of ambition, otherwise she would be worse than I was before."
Considering that the case has now made new progress, Officer Wang can naturally understand when faced with Gu Chen and Lu Weiwei's work of blood injection.
Afterwards, he tied the late-night snack in a plastic bag, threw it into the trash can aside, and continued to lie down on the folding bed to rest for a while.
…
…
On the other side, when Gu Chen and Lu Weiwei drove to the intersection of the alley, it was already 2:30 in the morning.
Also parked at the intersection of the alley were the police cars of Ding Liang and Huang Zunlong.
At this time, the two of them, along with two auxiliary police officers, were resting in the corner of the alley.
Perhaps because they were too tired, everyone was a little reluctant to get up when they saw Gu Chen and Lu Weiwei walking over.
When Gu Chen came to Ding Liang, he didn't say much and started searching the surrounding environment.
"Stop looking." Huang Zunlong said a little tiredly: "This alley is actually not long, and there are only a few families living here, but we have all asked the residents of these families and have not seen any trace of Zhang Wenkai.
"
"Moreover, these residents asked us to enter the house to search, but we couldn't find any trace of the travel bag."
"Yes." As soon as Huang Zunlong finished speaking, an auxiliary policeman also complained: "In this alley, it can be said that we dug three feet into the ground, but even that travel bag, we don't know where it is hidden.
"
Gu Chen didn't reply, but continued walking along the alley.
In 10 minutes, Gu Chen had walked to both ends of the alley three times.
This alley has a curved arc, so from the intersections on both sides, the middle position cannot be seen at all.
Gu Chen thought that Zhang Wenkai had to change his clothes in the alley and get his backpack.
In terms of time, it is very tight and takes a very short time.
This indicates that the backpack may be hidden in the middle of the alley.
When he reached the middle of the curved alley, Gu Chen could no longer see the exits on both sides.
"This should be the best hiding place, right?" Gu Chen murmured in his heart.
After all, even if Zhang Wenkai needs to change his clothes, it is impossible for pedestrians at the exit to see it.
At the very least some cover is needed.
The middle position of the arc-shaped alley solves this problem very well.
Standing in the middle of the curved alley, in front of me is the outer wall of a former building, with no doors or windows nearby.
There are only three households in the alley, two of them are located at the two exits, and the other one is also close to the exit. There is only one small door in the alley.
Gu Chen walked over and took a look. The door lock was rusty and had almost no trace of movement.
Thinking of this, Gu Chen looked up and down, and suddenly he knew something.
"It's impossible for Zhang Wenkai to put something in the sky, right? If not, then it's underground." Gu Chen decisively walked to Ding Liang's resting place.
Ding Liang's eyes were stunned, he looked up at Gu Chen and said, "What are you doing?"
"You have only searched these three households, right?" Gu Chen asked.
Ding Liang nodded silently: "Yes, I climbed over the wall by stacking Arhats, and sat on the wall to observe."
"The wall here is very high. It would be difficult for one person to climb over it alone. Moreover, we found no signs of climbing around the wall."
"Then it should be buried underground." Gu Chen walked back and forth in front of Ding Liang twice to determine the center of the arc-shaped alley, which was close to where Ding Liang was sitting.
This arc-shaped alley has only one underground passage, covered by a cement board.
There is a groove structure on the edge between the cement boards. When the two cement boards are joined together, a drainage gap is formed.
Gu Chen directly touched Ding Liang's butt with his foot.
Ding Liang was stunned and quickly asked Gu Chen: "What's wrong with you?"
"Stand up." Gu Chen reminded.
Ding Liang was confused and didn't quite understand Gu Chen's intentions. He just felt a little curious, but he still obeyed.
He stood up, dusted himself off, and gave way.
At this time, Gu Chen put his body against the ground and looked carefully at the cracks in the cement board. Sure enough, he quickly discovered the problem.
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