Detective: I have a split personality, but I’m really not a murderer

Killing indiscriminately?

Beicheng Investigation Bureau!

Xiong Leilei, Lin Xiaoxiao and Hu Manying all frowned slightly after hearing Gao Ting's analysis.

"Gao Ting, you said that the murderer killed indiscriminately because the victims had nothing in common?"

"The victims of the inventions found now are indeed quite different.

Age, occupation, gender, family background, etc., are not exactly the same."

"But!

Is it possible that the murderer's criteria for selecting victims this time are quite special and bizarre?

It is a feature that ordinary people cannot notice, so we haven't found it yet!"

After hearing the analysis of the three, Gao Ting nodded:.

"What everyone said actually makes sense.

When a serial killer chooses a target, some criteria are indeed difficult to determine.

Just like the case of the necrophiliac, the murderer chose the person who had just had her manicure done. This characteristic is not a long-term characteristic of the victim.

It is a characteristic that has been temporarily changed!

Relatively speaking, it is difficult to find.

If the case in Bay City this time is similar to this situation, it is not completely impossible.

However!

From my point of view, the probability is still a little low. ”

Gao Ting looked at the three people:

“As everyone knows, in the Bay City case at that time, although the most prominent feature of the victim was the red manicure.

And he had just had a manicure done by the murderer. “060”

But at the same time, there are other similar characteristics Signs.

For example, the victims are all women!

And they are all mothers!

These are also their common characteristics!

In short!

In serial murder cases, due to the influence of the murderer's occupation, upbringing, and modus operandi, the victims usually have some similarities.

This similarity may be the result of the murderer's deliberate choice or the result of accidental cause.

But this case is different!

Except for the same place where the bodies were dumped and the same method of murder, the victims themselves do not have highly similar characteristics.

Even the time when the victims disappeared, the location when they disappeared, etc., are very different.

This is very strange Strange.

Whether it is the serial murder cases we have solved so far or the serial murder cases that I know of, this is the first time I have seen such a situation. "

Lin Xiaoxiao thought for a while:

"In this case, let's assume that the murderer did not have a preset target with fixed characteristics when committing the crime.

Then the murderer this time just wanted to kill people?

Or!

Is this case a group crime?

As everyone knows, this case involves paganism.

Is it possible that the targets are selected by different members of the pagan group each time.

And the process of killing is carried out by the pagans together.

So the place where the bodies were dumped and the methods of killing were the same, but the characteristics of the victims were very different? "

Xiong Leilei and Hu Manying's eyes lit up:

"It seems... it makes sense!"

"After explaining it this way, it seems to make sense."

Gao Ting thought about it, but shook his head directly:

"No!

The method of killing the victims was consistent, indicating that the murderer was most likely one person.

It doesn't seem to be a group of pagan members.

And the evidence on the victims and the clues found at the place where the bodies were dumped basically show that

This case is unlikely to be a gang murder.

It is more likely to be the work of a serial killer.

Hu Manying frowned:

"In fact, whether the murderer is a gang or a serial killer, it doesn't seem to make any difference!

It doesn't seem to be helpful for our subsequent investigation.

Or!

Boss, what do you think? ”

Gao Ting smiled and nodded:

“I do have some ideas.

For this case, it seems that it is unlikely to find the direction of investigation from the subjective killing of the murderer.

So, we can only find a breakthrough from the inevitable aspects caused by certain coincidences…”

Inevitability caused by coincidences?

The three of them frowned slightly when they heard this.

What does this mean?

Why does it sound so awkward?

Hu Manying asked in confusion:

“If you want to solve the case, it’s better to use evidence as the basis!

What does this inevitable caused by coincidence mean?”

Gao Ting smiled:

“It’s actually simple to say.

Didn’t the eight victims found in the deep ravine disappear in different places at the beginning?

I have used a detective technique before, called criminal geographic profiling?

This technique is simply put!

It is to find out the places where the murderer dumped the bodies, the murders, the places where the bodies were handled, and the places where the victims were controlled during the murderer's crime.

All these clues involving the location are related to the murderer's residence.

The principle of this technique involves the concept of a "comfort zone" in the criminal's psychology.

Humans are usually most comfortable in their permanent residence, that is, in their daily life.

In this comfortable place, doing something is usually more reassuring and less anxious.

Especially when criminals commit crimes!

Some criminals will be anxious and nervous, while others will be excited.

But no matter which emotion it is, it will cause inner agitation.

This agitation will cause the criminal to feel uncomfortable to some extent.

Therefore!

Subconsciously, when criminals commit crimes, they will choose the location near their residence.

The same applies to places where bodies are dumped, places where people are killed, etc.

Sometimes!

The murderousIn order to avoid the investigators' suspicion, the murderer may deliberately choose to commit the crime far away from his residence.

If it is a single murder, there may be no way to solve it.

But serial murders are different!

Serial murders involve multiple locations.

According to research, even if the criminals can stay away, these locations usually have a certain geographical relationship with the criminals' residence.

The simplest is that these locations will show a certain pattern and surround the murderer's residence.

Or!

The locations related to the case will show an arc-like shape with the victim's residence as the core.

No matter which situation it is, there must be a certain connection between the two.

In order to identify this connection, researchers have established various different models.

These computational models can also be used to find the approximate range of where the victim lives. ”

After listening to this, Lin Xiaoxiao and the other two all looked thoughtful.

Hu Manying said first:

“It seems to make sense!

I have also heard of the technique of criminal geographic profiling and learned it in school.

However, in daily applications, it is usually used very simply and roughly.

Using computational models is usually rare. ”

Xiong Leilei said:

“Gao Ting, you used this case before, it was the revenge case, right!

In that case, there were also several murderers who could not find a clear connection.

And the residences of several people, that is, the places of death, were very far apart, and they were not even in the same city.

You used criminal geographic profiling at that time to determine a place called Shishan Temple.

Finally, the connection between all the victims was determined.

Can a similar method be used in this case? ”

Lin Xiaoxiao pondered and said:

"Gao Ting, now that you said that, this case seems to be quite suitable for using criminal geographic profiling.

Because the places where the eight victims disappeared are far apart.

And they are very scattered!

This is definitely not conducive to direct case investigation... 0

But if we use criminal geographic profiling, this can become our advantage.

Because the more scattered, the more suitable it is to use computational models.

Also!

The deep ravine where the body was thrown, and the place where Sun Qianni disappeared, can also be added to the computational model if necessary."

Gao Ting nodded directly:

"That's right!

What you said is basically correct."

Xiong Leilei smiled:

"Gao Ting, since you specifically proposed this idea, it must be possible to do it? ”

Gao Ting was not so confident:

“You can try, and it’s worth a try.

But for this kind of thing, no matter how good it sounds in theory, it may not work in practice, and there may be various accidents.

Let me study it first! ”

This is the reason, Lin Xiaoxiao and the other two naturally understandAll understood.

According to Gao Ting's request, they brought a map.

On it, they marked the places where the eight victims disappeared, their daily residences, and their places of work in the deep ravine.

When they disappeared, their whereabouts and other information.

After everything was ready!

Gao Ting came to the map!

He first checked the places on the map himself, and used a ruler to measure the distances between different places.

Then, according to certain requirements, these places were connected between certain places.

Then the distance of the connection was measured again...

After that, he wrote and drew on the paper, and re-marked on the map.

This operation confused Xiong Leilei and the other two.

They all knew the technique of criminal geographic profiling, and they had all learned this technique in school, but they still couldn't understand what Gao Ting was doing.

Xiong Leilei looked at the densely packed calculation formulas written by Gao Ting on the A4 paper, with a face full of question marks:

"What is this?

Is this also the content of criminal geographic profiling?

Why can't I understand it at all?"

Hu Manying next to him also scratched her head:

"Don't talk about you, I don't understand it either.

And I can't understand it at all!

This seems... a bit beyond the scope!

The criminal geographic profiling I studied in school is not so complicated?"

Lin Xiaoxiao stared at the formulas carefully, but said:

"This seems to be what Gao Ting said, the calculation model for dealing with different situations!

He wrote and drew on the map before, as if it was for 1.2 to determine which calculation model is suitable for this case.

However!

I didn't expect that this case would be so complicated.

Such a complicated calculation is needed, and I don't understand what Shen Ting is doing at all.

Since it involves a calculation model, it is obviously different from the simple application of geographical portraits that we learned in school.

It is estimated that experts in this field are needed to understand what Gao Ting is doing! "

Xiong Leilei next to him curled his lips and muttered:

"You said it so nicely, I thought you could understand it!

It turns out that you can't understand it either!"

Lin Xiaoxiao raised his eyebrows and clenched his fist towards Xiong Leilei:

"What did you say?

Are you asking for a beating again?"

Xiong Leilei curled his lips in fear and quickly hid beside Gao Ting.

Just like that, several people stood there inexplicably, watching Gao Ting write and draw.

It took half an hour for Gao Ting to stop writing.

The three saw Gao Ting draw a circle at a certain location on the map of Bay City, and they all gathered over immediately:

"Gao Ting, found it?"

"Is this the area where the suspect usually moves around?"

"There doesn't seem to be anything special here!

Looking at the location, it doesn't seem to beRight in the middle of the location related to the case.

It even looks a bit off!

Is this the right location? ”.