Four days later, the investigation still made no progress.

Except for the police who suspected that the No. 3 female corpse might be a woman who worked in a nightclub based on the confession of an old pimp, all other aspects were in a deadlock.

Within four days, the police almost compared the DNA of a large number of relevant personnel, including students, security guards, school workers and teachers at that time, but still no match was found.

According to the DNA tests of geneticists, the DNA map was not narrowed down. The criminal was very lucky that no one in his close relatives had left DNA data.

In addition, 3D restores images and other missing cases are also difficult and progressing slowly.

Including today, the special transfer team led by Zhao Yu has been in Chengzhou for almost half a month, and no one expected that the case would be found to be so.

Now, the police have expanded their search scope and started to conduct extraction investigations on school sports students and other grade students related to Zhizhen Building.

At this moment, the atmosphere in the special-service office was a little heavy.

No one expected that the seemingly cracked case would be further and further investigation.

Nowadays, the public media has spread widely, and this old murder case has attracted attention from all walks of life.

Because the case appeared on the university campus, it attracted the attention of college students.

Although it seems calm on the surface, in fact, Heyang Normal University has long been pushed to the forefront of public opinion.

The school is naturally more anxious than the police. If the truth cannot be found out, it will inevitably have a huge impact on the school.

This is not only an impact on enrollment rates, but also a serious impact on the reputation of the college.

The public opinion media is powerful. So far, hundreds of vivid versions have appeared on the Internet. Some say that the school is involved in gangs, some say that a certain classroom is a perverted murderer, and even more evil, there are people who spread rumors, saying that the school was a kiln pool back then, and organized female students to sell meat, etc. It was simply amazing, how ugly it was...

Under this circumstance, Zhao Yu and others undoubtedly felt great pressure.

Only then did Zhao Yu deeply understand that this case is really different from previous cases. Moreover, he must ensure 100% investment.

So, in the past few days, he has regained his previous work status and is investigating the case with all his might every day.

I don’t know what happened. After Zhao Yu was serious, he never had any tinnitus again.

"Team leader," Zeng Ke reported to Zhao Yuhui at this time, "The boss who rented a bookstore and the phone house can no longer contact him. In terms of the school, he didn't even remember his name..."

It turns out that through the memories of students and the school, there was a row of bungalows outside the Zhizhen Building. The bungalows were rented out by the school. Many people started buying small buys such as shaving and hairdressing, convenience stores, selling fruits, snacks, etc. The most popular ones are renting bookshops and telephone houses...

This kind of school shop was very popular in that era and almost became an integral part of students' college life.

It is precisely because of these shops that there is no way to regulate management.

Zhao Yu considered that since this row of shops is very close to Zhizhen Building, the staff of the shop seemed to be likely to commit crimes.

So he asked Captain Mou to investigate this a long time ago. Unfortunately, the management of those shops is relatively scattered, and the shops are like a lantern, and they are constantly changing people every year, so it is quite laborious to find them.

Just now, Zeng Ke told Zhao Yu that until now, they have not found the owner of the bookstore and telephone house.

Before, Zhao Yu carefully analyzed that if the murder diary case is related to these shops, at least the shop will last longer on campus, at least between 1997 and 2001.

After some confirmation, the police found that the only ones were renting a bookstore, telephone house and barber shop that lasted the longest time, which was consistent with the time standard for the murder diary.

However, through the memories of Liu Wei and others, an old lady who opened a barber shop has been ruled out.

The owners who rented the bookstore and the phone house were both young men, so Zhao Yu now wants to find these two people and conduct a comparison and investigation on them.

Unfortunately, the row of bungalows was completely demolished in 2005. Since the school could not find the lease contract for that year, the police have not only not found these two parties, but they don’t even know their names.

Liu Wei and others also said that they just remember that these two bosses were both men, but they never asked what their names were.

The police found several classmates who often rented books back then and asked them to take portraits, but none of them could remember them.

In addition, the situation in the telephone room is similar, and the police can only investigate information based on the telecommunications bureau, but because of the age, it still takes a lot of time.

Of course, in addition to these people, the police, such as boiler workers, plumbers and even canteen masters, were all included in the search scope and are still actively investigating and searching.

"Team leader," Zeng Ke reported another situation to Zhao Yu, "Lao Song's nephew has been found and is checking his DNA, but... you also know that it is unlikely..."

"Well..." Zhao Yu nodded. Of course he knew that although Lao Song was no longer alive, the police had extracted the DNA of Lao Song's relatives before and compared it with the target.

Then Lao Song’s nephew, at least DNA, is similar, so it shouldn’t matter.

However, in order to ensure that everything is foolproof, the work that should be done must be done. What if this nephew has no blood relationship with Lao Song?

In this way, the investigation continued, and Zhao Yu and the agents did not rest for a moment.

In the blink of an eye, it was another quiet night.

In the office, Zhao Yu was the only one left.

This time, he was not standing in front of the whiteboard, but was watching the video of the association seriously.

Zeng Ke, Ran Tao and others have carefully checked the videos of the association before, and recorded information related to the murder diary.

For example, Lao Song’s nephew was found out through this method.

Through the investigation in recent days, they have basically eliminated most of the clues, but Zhao Yu was afraid that Zeng Ke and Ran Tao would miss something, so he insisted on reading it again by himself.

I said I would read it again, but in fact, this is the number of times Zhao Yu has seen it.

At this moment, he was watching a video of the school leaders. Those sitting at the dining table were all old leaders from Heyang College and new leaders now.

Among them, a current vice principal said with emotion while tasting the wine:

"If you want me to tell me, it is absolutely impossible not to admit the freedom of heaven in the dark!" He put down his wine glass and said to his colleagues present, "Zhizhen Tower should have been demolished long ago...

"In recent years, our Heyang Normal University's sports major has achieved gratifying results, so the school decided to demolish Zhizhen Building and build another auxiliary gymnasium!
Chapter completed!