After reading the newspaper.

Dean drew five or six circles on the map of the city, and the circles were marked with numbers such as 1.2.3.

Each circle represents a crime.

The numbers in the circle are the order in which they appear.

"The first case occurred in a remote park in the city, where the public equipment was old and there was almost no surveillance, and after the second time, it appeared in the urban area, in four directions, southeast and northwest.

The only area that doesn't show up is here! ”

Dean picked up his pen and drew a large circle on an area of the map.

There is a high probability that the murderer lives in this area!

He turned his head to look at Corolla: "Did you find the information of the person who delivered the newspaper?" ”

Prisons are not private places.

Out of humanitarianism.

Relatives and friends of the offender can send some letters to the offender.

But when these letters reach the criminals, they are opened, carefully examined by the prison guards, and the sender is registered.

Corolla nodded first, then shook her head: "According to the information provided by the prison, the sender's name is Jim, I asked people to check the other party's information, and found that Jim is a distant relative of Shemmy, who died eight years ago, and someone used his information to send a letter to Shemi." ”

"It's normal."

Dean was not surprised by the result.

From Shemi's accomplice, who chose to send a newspaper to remind Shemi, it can be seen that the other party is not the kind of stupid guy.

The information in the newspaper is cluttered.

The interval between each delivery is not always the case.

What's even more disgusting.

Every time Xie Mi finds the information he wants, he tears off that area, and then 'glues' it on the wall of the room to ensure that the content of the newspaper on the side of the person is normal.

In this case.

Even if a certain prison guard was suspicious of Shemy's strange behavior, he would never bear the disgust and tear off the side of the wall where the newspaper was stained with Shemy's descendants.

Because the duty of the prison guard is to ensure that the prisoner does not escape, not to break the eucalyptus.

So they don't have the sensitivity of a police detective to doubt everything and pursue the truth of everything, and most normal people don't want to be nosy and nosy.

"So where do you think you have the confidence to be able to break before you get off work?"

Carola's eyes were curious.

"Isn't it obvious?"

Dean pointed to the circle on the map that was not marked with a number:

"The sender's name can be disguised, but the handwriting written on it cannot be disguised, and the place where the letter was sent cannot be disguised!

Help me find the mailing place of each letter, mark it on the map, further narrow down the map, and then we can just check the households one by one!

】

Xie Mi's accomplice is most likely to be in a state of solitude.

Even if we don't screen those residents.

Those residents will also leave their own handwriting on the property.

He can't run away! ”

Hearing this, Corolla slapped her forehead, revealing a sudden feeling.

Dean's method is a bit stupid, but with the help of modern tools, even if tens of thousands of notes need to be checked in the end, the efficiency will not be slow.

The only problem is the tenant.

Property management companies, generally for the preservation of information, will sign residents' signatures and other documents, take photos and upload them to the Internet, as long as they can get their information, for comparison, it will be very fast.

However, some of the people who leave the information are landlords, but they do not have tenant information.

So when the time comes, it is estimated that it will take a little more effort.

Carola sorted out this and looked at Dean again with adoration: "I'm curious about how your brain grows, as if no matter what, in front of you, you can find a good breakthrough point!" ”

"It's not that hard.

A certain IQ plus enough experience is just that.

Corolla, your IQ is not lower than mine, but your vision limits your thinking.

Putting down your head high and taking a closer look at the world will help you grow faster. ”

Dean did not hesitate to teach this 'junior sister'.

Saliva and no money.

As long as Corolla doesn't have problems with her brain, her status in the Commonwealth in the future should not be low, and she is a potential stock.

This is actually the same as eating soft rice.

The pattern opens.

As long as you don't make enemies of yourself.

Dean loves to make some of these friends.

...

Between words.

A strange call came to Dean's phone.

Dean picked it up and saw that it was the Commonwealth phone, and hesitated for a moment before he realized that it should be a call from Nicol from the police department.

Before leaving.

He left his business card.

Dean answered, "Nicol?"

"Yes, Mr. Dean, we have worked hard to re-examine the evidence we left behind, and we have made a major discovery!" On the other end of the phone, Nicol's voice was a little excited.

Dean came interested: "Tell me? ”

Although he already has the idea of finding Shemi's accomplice.

But if you can save some effort, it will be better.

"In this inspection, we have two major discoveries."

"First, on the rope of the male victim who strangled him, we found the epidermal remains of Xie Mi and another unknown person from both ends and in the middle, respectively!

We extracted the genetic material above.

Although I didn't find each other's information in the database, after comparing the genetic material between him and Xie Mi, it was found that the genetic material between them is familial!

The other party is a relative of Shemi! ”

Hearing this information, Dean's mind immediately conjured up the bald face of Shemi's younger brother Jerington.

Could it be that this guy deceived him?

Dean immediately winked at Corolla, who was standing on the sidelines.

Corolla understood in seconds, walked to the side, took out her mobile phone, and prepared to call someone to check, where was Jerington when his brother Shemmy committed a crime!

The other end of the phone.

Nicol continued: "The second major discovery: we found cobalt on the bloody clothes on the female victim's body, the axe handle, and the rope! ”

"Cobalt?"

"Yes, this is an uncommon metallic element, cobalt that ordinary people can access, and is generally used in platinum jewelry, dental fillings, pigment configurations, and so on.

The most important thing is that Xie Mi is 'strong' over the female victim, but the clothes on his body have not been tested for cobalt elements, so these cobalt elements are very likely to be left by the second person! ”

said.

Nicol sighed.

Three years ago, they didn't add an X-ray spectrometer here, otherwise even if they were careless and tested according to the process, they would definitely be able to find the tragic destruction three years ago, and an unknown accomplice!

Dean was in a good mood when he heard this.

With these two important pieces of information that Nicol added.

It's easier to lock down the accomplices!

He didn't care about the sigh on the other end of Nicol's phone, and asked, "What are the other professions that have been contaminated with cobalt for a long time?" ”

"Raw material workers, carpenters... That's right! ”

Nicol spoke of the carpenter, as if thinking of something, and exclaimed:

"Mr. Dean, I remember!

Three years ago, I compared the injuries on the victim's body and found that the axe wounds on the male victim and the axe wounds on the female victim were not comparable at all, but their efforts were similar, just like the force of chopping wood!

At the time, I didn't think there were accomplices, so I didn't think much about it.

Now it seems that the accomplice must have had the same work experience as a carpenter, just like Shemy! ”

Because of the frenzied felling during the Industrial Revolution, the surrounding cities did not have abundant tree resources, which could not support some professional loggers, and there were not many jobs that required the use of axes.

Cobalt element、Always use an axe!

These two points are combined.

You can basically lock the accomplice who has engaged in the carpenter profession!

"Carpenter?"

Dean thanked Nicol sincerely.

The other party's discovery was timely.

This really saved him a lot of effort.

...

Hang up.

Dean said to Corolla, who was already busy, "Let's go, let's go find Gerrington!" ”

Corolla waved her phone:

"I have verified that when Xie Mi committed the crime, he was detained at the police station for the crime, and there was no time to do it!

Now that the occupation of the murderer has been determined.

We just need to do what you thought before, and it will be even simpler! ”

Dean shook his head: "The method I proposed before is not 100% correct, but since the accomplice is a relative of Shemmy and has worked as a carpenter together, then Jellington must know the identity of the other party!" ”

After speaking.

He helped Corolla, who had little life experience, to popularize science:

The profession of carpenter is very magical, no matter which country it is, it is basically an apprenticeship model with one belt or one belt and many belts, and it is difficult to open classes for mass production and vocational training.

When Xie Mi committed the crime, he had already changed careers.

But his learning experience cannot be concealed.

And this apprenticeship inheritance.

Unlike normal jobs, you can find them through an application, and they are often introduced by acquaintances.

Considering that Shemi and his younger brother, both parents died, he dropped out of school early to earn a living, and finally Shemi became an apprentice carpenter... There is a high probability that it was introduced by a relative on contact.

This man, Jarington, definitely knows!

Dean said in a calm tone, "So, let's go directly to Jerington, which is much less time and effort than my previous method." ”

Corolla blinked her eyes and habitually admired: "Dean, you are so amazing!" ”

This girl, who has a demonic IQ, experience and cognition, is about to become a salted fish who can only shout 666 in front of Dean.

on this.

Dean silently pulled out a cigarette and lit it.

He also wanted to keep a low profile, but his strength didn't allow it.