Back at the Criminal Investigation Brigade, Xiao Yu picked up the case file again and forced himself to let go of all emotions.

Only a calm mind can have clear thinking and complete rigorous reasoning.

With the in-depth understanding of various information and clues on the dossier.

His brain was like a CPU running at high speed, piecing together various information, and the case became clearer and clearer.

Summed up three doubts.

Why did the victim go to the roof of the dormitory in the middle of the night?

If it wasn't two female employees who killed people, who would it be?

How did the murderer transport the dead victim to the warehouse?

While Xiao Yu was analyzing and inferring the case, other police officers were also analyzing the case.

The time given by the superior is too short.

Two weeks, now almost five days have passed.

If you don't hurry up to solve the case, everyone will be in bad luck.

In his previous life, Xiao Yu encountered a murder case that was still fresh in his memory.

The criminal police stayed up all night, opened up their brains based on clues, and made several speculations about the course of the case.

Based on this, collect evidence.

Then they all overturned and re-reasoned.

After the case was solved, everyone was exhausted physically and mentally, and each of them was about to collapse.

Eating this bowl of rice takes effort, brains, and body, and it's a hell of a long life...

Until midnight, Xiao Yu came back to his senses and glanced at Guo Qiang, who was smoking a cigarette and thinking about the case beside him, "Master, let's go to the scene to see."

"Still going?"

Guo Qiang came back to his senses and glanced at his apprentice in surprise, "What did you think of?"

"no."

Xiao Yu shook his head, "I found that the dossier seems not detailed enough, I want to...simulate the scene of the case!"

Simulating the scene of the case is a compulsory course for every police detective.

In the police academy, the teachers will focus on teaching.

As long as all the crime process of the criminal at that time can be completely simulated, some details can be used to "chasing the murderer".

"Tsk!"

Guo Qiang smacked his lips, "Okay, let's go."

At night, especially in winter, it is very difficult to go to the simulation site.

If it were someone else, Guo Qiang would not even bother.

But this apprentice is not ordinary, his brain is too strong, he likes it very much.

What if something can be found out?

Then go for a walk with the apprentice...

...

A police car returns to the crime scene.

Xiao Yu didn't step on the roof of the staff dormitory immediately, but stood downstairs and waited and watched.

If, I am the victim...

He closed his eyes, blocked all distracting thoughts, and fantasized that he was the victim.

This is a psychological hint.

In criminal psychology, an integral part of simulating a case scene.

Imagine yourself as the victim, and go further to deduce all the actions of the murderer.

At this moment, Xiao Yu's adrenaline was crazily secreted, and his brain cells were highly active.

If pheromones can mimic.

So at this time, Xiao Yu's brain cells are like koi in the pond, fighting frantically for food, and the water surface is boiling.

Why did the victim go to the rooftop?

In winter, the victim is not stupid?

Someone must have called him.

This person is very likely to be the murderer!

So, how did the murderer tell the victim to go to the rooftop?

The case file shows that during the approximate time period when the victim was killed, there were no records of mobile phone calls, and no records of conversations on social platform software...

Xiao Yu's eyes lit up, dormitory? !

The victim was in the dormitory at the time, right?

He just went to the rooftop when someone came to look for him?

The people who can freely enter and leave the dormitory should be factory workers, right?

Someone who could go to the victim's dormitory, acquaintances, managers, or... female employees?

No, not the two female employees.

Through interrogation, if something is wrong with them, they cannot escape the eyes of a group of old criminal investigators.

Although they are suspected, but the suspicion is still not great.

Except for them, other employees are working overtime in the factory.

No, they are free to move about while working overtime.

It is also possible to leave the factory where you work overtime and return to the dormitory.

However, the workshops in the factory are monitored.

At the time of the incident, the surveillance video showed that only a few employees left during the period, but the time definitely did not exceed half an hour.

Sneaking back to the dormitory, finding the victim, taking the victim to the rooftop, killing people, transporting the corpse... half an hour is definitely not enough!

In other words, the suspicion of employees working overtime is not very great.

Ghost?

Xiao Yu became puzzled.

It's not the two female employees in the dormitory, and it's not the employees who are working overtime. Could it be an outsider?

But how did outsiders enter the dormitory?

After all, there are guards...

Wait, doorman?

A cold light flashed in Xiao Yu's eyes.

According to the investigation, the doorman was also a suspect.

There is little suspicion.

According to the guard's transcript, he was playing a mobile game at the time.

Through the investigation of the guard's mobile phone, there is indeed a record of his time playing mobile games at that time.

Only then did he confirm that his suspicion was not serious.

Small doesn't mean impossible.

In the cases handled by Xiao Yu in her previous life, many suspects deliberately fabricated alibi.

But the mobile game played by the guard is an online competitive game, and the network IP address is the WIFI of the dormitory, which is unmistakable.

Is it really a ghost?

Could it be that an outsider sneaked into the dormitory, called the victim away, killed him, and transported the body away in a grandiose manner?

Can he do magic?

Xiao Yu's face turned cold.

Even a group of old criminal investigators have a headache and can't find the key.

Now even he is stumped.

Judging by this, the murderer has a high IQ.

It seems like everything has been calculated.

Without leaving clues, this is definitely not something ordinary people can do.

The road of simulating the scene still doesn't work.

Wanting to solve the case is a desire, and it is also true not to be reconciled.

Sudden.

Xiao Yu's eyes flashed a gloomy look, and his mind ran wildly again.

If I were a murderer...*

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