In a mental hospital, Bai Fumei forced me to be her boyfriend

Always have a certain range.

But it is impossible to know the identity of the deceased now, and it is impossible to make an effective judgment at all.

Even Wang Ze couldn't advance the investigation just after learning about the case.

Pang Qun remained silent for a while, and said, "Wang Ze, what should you do next?"

Wang Zedao: "I don't know much about Xicheng, can you show me the map first? Mark the location of the crime."

Pang Qun nodded: "Of course."

·························································

After finishing speaking, he turned to look at one of the police officers and said, "Zhang Chao, turn on the projector."

Zhang Chaodao: "Good captain."

After speaking, he got up and turned on the projector, and then operated on the computer for a while.

Soon, the big screen lights up.

A map is displayed.

Among them, there are three circles with red dots.

Zhang Chao said, "Captain Wang, these three places are the scene of the crime."

Wang Ze stared at the map for a while, then said, "This murderer..."

"There seems to be no psychological safety zone."

"Captain Pang, have you noticed this problem?"

Psychological safety zone is a term often mentioned in criminal investigation.

Everyone has their own familiar and frequently active areas.

0 .. 0

This is the so-called psychological safety zone.

For extreme behaviors like crime, the psychological safety zone is even more important.

Especially serial murders.

Most of the murderers who commit crimes in a row are basically within their own psychological safety zone for the first few crimes.

The scope of the psychological safety zone is usually centered on the murderer's residence, work unit, and frequented entertainment venues, and radiates to the surroundings.

If the habit is walking, then the radius of the radiation does not exceed one kilometer.

If you ride a bicycle, the radiation radius does not exceed three kilometers.

If you drive, the radiation radius is more than five kilometers.

Pang Qun nodded: "Found it."

"So I think……"

"The murderer should not be a local, which is very strange."

Wang Ze was thoughtful.

The three crime scenes radiate to the surroundings, and the area they cover together is basically the murderer's psychological safety zone.

But from a practical point of view, they are too far apart from each other.

You need to radiate more than [-] kilometers to see the intersection.

Even if you choose the wilderness, it is impossible for the gap to be that big.

Exclude small probability events.

maximum possible.

That is, the murderer has no psychological safety zone at all.

His location was chosen at random.

He is not familiar with the place Xicheng.

After being silent for a while, Wang Ze said, "There is another possibility."

"The murderer's anti-reconnaissance ability has reached the level of breaking through the psychological safety zone."

……wide.

Chapter 186 Thorough investigation of Yuan Shengqiang [3]

Wang Ze's words made the entire meeting room fall into silence.

If the murderer's anti-reconnaissance ability has really broken through the psychological safety zone.

This means that the other party not only has strong anti-reconnaissance capabilities, but also has an understanding of criminal psychology.

As for how much is known, no one knows now.

Deliberately avoiding the psychological safety zone?

If so.

So the murderer's caution and high IQ are really rare.

Pang Qun was silent for a while, and said, "Wang Ze, do you prefer that the murderer is a local?"

Wang Ze nodded and said, "It's more likely that the locals, or those who have lived in the local area for a long time."

"The murderer chose the method of burning to create this serial murder case."

"Motivation, nothing more than two."

"First."

"The murderer has a serious anti-social personality, and the purpose of killing is to avenge the society "[-]"."

"Then, the possibility of creating three cases in an unfamiliar city at the same time is very low."

"It's okay to cross regions."

"However, all three cases occurred in Xicheng, so the possibility is unlikely."

"second."

"The murderer is killing for revenge, and he has a high degree of hatred for the deceased."

"Being able to have life-and-death feuds with three people in the same city at the same time."

"To say that he is a foreigner who stayed for a short time, the credibility is a bit low."

"And the most important point: the killing time span."

"A few years is definitely not short."

"It's enough for a foreigner to be thoroughly familiar with Xicheng."

"So, I am more inclined that the murderer is familiar with Xicheng."

"The reason why there is no psychological safety zone for investigation is because he has extremely strong anti-reconnaissance capabilities."

After listening to Wang Ze's words, Pang Qun took a deep breath and said, "That will be difficult."

Serial murders are already difficult to detect.

If the murderer has strong anti-reconnaissance capabilities, it will be even more difficult.

Especially under the premise of not knowing the identity of the deceased.

It was almost black in both eyes, and there was no way to start.

Wang Ze said, "It's true...it's a bit difficult."

He rarely said it.

"Our biggest problem now is that we are still outside the case."

"It just doesn't get to the heart of the case."

"wrong."

"Let's not talk about the core, we didn't even enter the edge of the case."

"So the first task now is to find a breakthrough and forcefully enter the case."

Pang Qun sighed.

He understood what Wang Ze meant.

In the cases I have encountered before, the outline and direction can be seen to some extent.

But in this serial murder case, they have been wandering around the periphery, unable to find an effective clue.

As long as you can find the end of the thread, you can check it along a line.

Even if the identity of the murderer cannot be quickly identified.

At least, I can slowly know what is going on in this case.

"Have you checked the source of gasoline?"

Wang Ze asked.

Pang Qun said: "I checked, but I found nothing."

"Oil prices are not low now, and there are many small gasoline workshops, so it is difficult to find out."

Wang Ze nodded slightly, and murmured to himself in a low voice: "The body is burnt like this, I'm afraid it's impossible to judge the time of death."

Hearing the voice, Pang Qun said: "Yes."

"Normal criminal investigation methods are difficult to find effective clues."

As far as this case is concerned.

Their luck is very bad.

It can also be said that the murderer was lucky.

Yuan Shengqiang, the only one who knows his identity, still lives alone.

When he was killed, he had already separated from his wife and lived alone.

Although they have children, they seldom see each other except during holidays.

In this case, even the monitoring does not know where to start.

That's why Pang Qun said.

Normal criminal investigation methods seem to have lost their effect.

Wang Ze rubbed the space between his eyebrows: "Moreover, there are no ruts or footprints."

The murderer chose to kill in the wilderness and brought a wheelchair.

Definitely need transportation.

Unfortunately, it had rained before the body was found.

All three cases.

All traces were washed away.

Corpses, burned.

Death scene, water flushed.

As a murderer, it can be said that he is good at anti-reconnaissance.

When mentioning this matter, Pang Qun was even more helpless: "This bastard, how the hell is he so good at timing."

"Choose to do it before it rains."

"Before the body was found, it was all washed away by a rain."

Wang Ze was silent.