It was a summer morning.
The morning glow reflected the faces of the people and the entire earth.
The sun quietly peeked out and sprinkled its light on the human world…
Zhou Chen, who was chewing on a pancake, stared at the residential building in front of him without blinking.
The victim's house was on the sixth floor.
Because it was an old-fashioned building, the entire building was seven stories high and did not have an elevator.
Although there were no surveillance cameras in the corridors, surveillance cameras were set up in the community later.
Through the surveillance camera, anyone who entered the residential building from the community could be recorded.
However, it could only be recorded for 20 days!
This was normal.
The storage function of any monitoring equipment would not last long, basically around 15 to 40 days.
Storage of data required memory, or even hard disks.
The higher the quality of the video, the more storage space was wasted.
Anyone who knew about surveillance cameras would know how big a hard disk was that could store 40 days of surveillance video!
Even 20 days of surveillance footage was enough.
After checking, he found that no suspicious person had entered the residential building in the past 20 days.
Most of them were residents, takeaways, couriers, moving companies, and so on.
Even if there were some people who visited relatives and friends, they had all been investigated by the police.
Nothing could escape the eyes of the old detective.
Therefore, the murderer who killed the family of three definitely did not enter from the door of the residential building.
"Could it be that he can fly?"
After eating the last bite of the pancake, Zhou Chen came back to his senses and muttered as he chewed.
The logic in his brain became rigorous and clear again.
His gaze fell on the air conditioner hanging on the outer wall of the victim's house.
When they were at the forensics bureau, Zhou Chen and the forensic doctor had roughly deduced why the victim's family of three had gone crazy.
Gas!
Since there were no traces at the crime scene, it could only mean that the cause came from the outside.
Through the investigation of the scene.
Although the windows of the victim's living room were open.
However, based on the angle of the distortion and the traces of glass shattering.
The preliminary judgment was that the high temperature in the room had caused the window to be deformed and cracked. After that, the window frame was opened.
Zhou Chen thought of the 'oil wax' he found on the chandelier at the crime scene, and a cold light flashed across his eyes.
He deduced a scene…
……
At noon, it was summer.
The victim's family of three was enjoying lunch at home.
However, someone used the air conditioner to release some kind of gas into the victim's home.
After that, it caused the victim's family of three to go berserk?
Then, he remotely controlled the air conditioner, causing the temperature in the victim's home to rise and melt the wax.
It caused the flammable crystal pendant to break, fall to the ground, and catch fire?
The fire and high temperature caused the glass in the hall to explode and the window frame to distort, causing the air to circulate.
Eliminate the traces of gas and crystals from the crime scene…erase all traces!
……
Could he do it?
Zhou Chen repeated his reasoning, reviewing and deliberating over and over again.
Finally, he got an answer.
Yes!
" Then, what about the flammable crystals?"
Zhou Chen could roughly deduce the process of the murder, but he could not figure it out.
How did the other party put the 'crime tool' in the victim's house?
"Wait…"
Zhou Chen slapped his forehead and laughed.
His eyes were fixed on the air-conditioner hanging on the outer wall of the victim's house.
Since the perpetrator had tampered with the air conditioner, it meant that he had the ability to work at heights.
They could work at high altitudes, yet they still needed to enter the victim's house from the residential building?
If not for that, reasoning was like facing a messy ball of yarn.
Each clue was like a thread.
He had to list all the clues one by one, combing them out like a strand of yarn.
Finally, he could untie the ball of yarn.
If he didn't comb it, it would only become more and more messy if he tried to forcefully untie the ball of yarn…
……
At noon.
"According to the surveillance, there are two types of tools for aerial work. One was an aerial work truck, and the other was a moving company's ladder truck.”
A secret service agent reported with the investigation report," After checking the surveillance cameras, we have already investigated. In the past 20 days, the aerial platform truck has entered once, and the ladder truck has entered twice. However, the only suspicious thing that was close to the victim's house was the ladder truck.”
" As for the air conditioner…"
Another agent said," We found some strange chemicals. We're conducting tests. The test report will be released at night.”
"The preliminary investigation of the surveillance cameras of the victim's family has been completed.”
Hu Li, the team leader, had a serious expression as he reported,"After performing a special repair on the damaged surveillance memory in the victim's house, it was discovered that this memory card was actually empty. The strangest thing was that the cloud surveillance data of the victim's family seemed to have been modified!”
"Ha!"
After listening to his subordinates 'reports, Zhou Chen sneered." Then there's nothing wrong. Go and check…the ladder truck!”
"Yes, sir!"
The secret agents responded and left.
As for Zhou Chen himself, his expression gradually became strange as he looked up at the rooftop of the residential building.
"It's not enough to just have a ladder truck. Did you do something else?”
This book comes from：m.funovel.com。