Back at the police station, Li Jie and Leng Xiaobing parted ways, one going to the interrogation room on the first floor and the other to the archives room on the second floor.
Of course, before this, Leng Xiaobing had already applied to the archives office for access to files.
Arriving at the archives room, Li Jie went straight to the 14-year-old database, pretended to search for a while, and pulled out a file.
On October 29, 2014, Xiao Huajun committed arson.
The cause of this case was that Xiao Huajun's dog was hit and killed by a car. The driver didn't take the dog seriously at all and just paid the money.
And his attitude is extremely arrogant.
Then, the car caught fire inexplicably. The police investigated the cause of the incident and finally found Xiao Huajun, who had a conflict with the car owner.
Xiao Huajun was taken to the station for questioning by the police, but because Xiao Huajun had psychological problems, and the psychiatrist Shen Yu provided him with an alibi.
As a result, Xiao Huajun's suspicion was cleared.
After getting the file, Li Jie did not leave the archives immediately. Instead, he continued to stay in the archives and dug out all the files on lost pets in recent years.
Although it took a while to do this, it is a normal process.
You can't just take a dossier and hand it over, right?
A dossier that clearly cannot be handed over.
The police can have subjective wishes when handling cases, but subjective wishes cannot be used as the basis for deciding the case. There must be reasonable reasons.
About half an hour later, Li Jie left the archives room with a large stack of files.
Back in the office, Leng Xiaobing had already finished questioning the victim's family, and he got the information he wanted from the victim's family.
The victim did have the habit of abusing pets, and every time he went hiking, he would bring a large bag with animal bones in it.
At first, the victim's family was prepared to conceal this fact. After all, death is like a light going out, and the victim's family hoped that the victim would die a more dignified death.
If this incident were to be exposed, the victim would inevitably gain notoriety.
But the victim's family obviously did not expect that the police had already mastered this information, and Leng Xiaobing broke through the victim's wife's psychological defense in a few words.
"Hey, Xia Mu, are you back?"
After Leng Xiaobing recorded the latest developments in the case, he raised his head and relaxed his neck, and happened to see Li Jie who was flipping through the files.
"How's it going? Are there any suspicious files?"
With that said, Leng Xiaobing stood up and walked to Li Jie's desk, picked up a file and started to read it.
"have."
Li Jie nodded and handed over the file in his hand.
"Team Leng, look at this case."
What Li Jie handed over was "Xiao Huajun's Arson Case". Leng Dui quickly read through it and then frowned unconsciously.
He was somewhat impressed by this case.
A dog was hit and killed, and the car that hit the dog was burned.
In the eyes of ordinary people, dogs and cars are obviously not equivalent. It is somewhat extreme to burn someone else's car after a dog dies.
In particular, the suspect is a mentally ill person, which further aggravates his impression.
After looking through the file, Leng Xiaobing did not make a judgment immediately, but asked Li Jie a question.
"Do you think this case is related to the current case?"
Li Jie casually replied: "It won't take much effort to hunt rabbits in the grass. It won't take much effort to check. What if I get something."
Leng Xiaobing nodded. This mentality was correct. Although Xiao Huajun was finally cleared of suspicion, the case was not without doubts.
It is recorded in the file that when Xiao Huajun was brought back, he was particularly nervous and looked as if he had committed a crime.
The number of suspects police officers encounter in their work is countless. Over time, you can more or less get a clue as to whether there is a problem with a person. Gu
However, Xiao Huajun later received the testimony of a psychiatrist, and the car owner himself changed his attitude and stopped being aggressive.
In the end, the car fire was determined to have been caused by the spontaneous combustion of the lighter in the car, and all the car owner's losses were borne by the insurance company.
"Team Leng, Ma Yu's computer has been brought back."
At this moment, police officers from the technical team walked in in a hurry.
"After repair, a large number of videos of cat and dog abuse were found on the computer, all of which were taken by the victim Ma Yu."
Just as the police officer finished speaking, another police officer from the technical team approached.
"Team Leng, not long ago a post suddenly appeared in the pet section of the Haizhou forum. The content of the post was about the case of Ma Yu's murder. It also included screenshots of the video of Ma Yu abusing cats and dogs."
"After comparison, these exposed photos came from the same source as those stored in the victim's computer."
Leng Xiaobing frowned. Less than twenty-four hours after Ma Yucai was killed, the police did not officially announce it to the outside world, and the specific details of the case were exposed.
And it also specially includes pictures of Ma Yu abusing dogs during his lifetime.
Obviously, this was premeditated, and the person who posted the message wanted to discredit Ma Yu.
In addition, the poster is most likely the murderer, or one of the murderer's accomplices.
This person may be the one who hacked into the Forest Park surveillance system!
“Can the information of the poster be found?”
Although Leng Xiaobing already had the answer in his mind, the person who posted the message dared to break the news, and the technical department probably couldn't find anyone specific.
But you still have to ask.
detail!
All details in the case handling process cannot be ignored.
The technician shook his head: "The poster used an overseas IP and it was obviously redirected. The poster should have certain computer skills."
"I'll try."
While talking, Li Jie sat in front of a computer.
"you?"
Leng Xiaobing looked at Li Jie in surprise, what does this kid want to do?
"In my spare time, I learned a little bit about network security."
Li Jie glanced back and said with a smile: "It's just so-so."
After saying that, Li Jie began to concentrate on searching for traces on the Internet.
Although the network is virtual, the people who use it are real. As long as you have a little more patience, it is only a matter of time before you catch that hacker.
It didn't take long for Li Jie to follow the forum's backend and lock the IP address of the post.
Obviously, this is a broiler.
Following the IP address, Li Jie hacked into the broiler very easily.
Scanning it inside and out, no surprise, this broiler is very clean, leaving no traces.
Normally, the search will not proceed after reaching this point.
But before Li Jie left, he wrote a simple honeypot program and put it into the broiler.
Skilled hackers usually do not use the same machine to do repeated things, especially since this is quite risky.
It’s just broiler chickens. As long as the technology is good enough, you can easily catch a lot of them online, so there is no need to take risks.
Li Jie left this bait just for convenience.
It's good if you can catch it, but there's nothing to lose if you can't catch the opponent's tail.