I'm not a super cop

Chapter 27 The DNA of Deja vu
After a night of hard work by an old interrogator in the bureau, Zhang Cailiang confessed to the facts that he could not justify himself.

At around 07:30 on the night of the incident, Zhang Cailiang passed the first scene on a motorcycle.

At that time, an old man crossed the road carrying a large bundle of corn stalks. Because Zhang Cailiang hadn't observed the old man in advance, the motorcycle was too late to dodge and knocked the old man down.

The motorcycle also fell on the side of the road, causing damage to the small light on the right, and Zhang Cailiang injured his right index finger.

Seeing that the old man was seriously injured and no one was around, Zhang Cailiang got on his motorcycle and left, but he didn't know that a drop of blood had fallen near the scene.

However, it is uncertain from the current evidence whether a vehicle subsequently ran over the deceased.

About half an hour later, a full bus passed the first scene. Because there were a lot of corn stalks on the ground, the shuttle did not pay attention to the corpse on the road, so the body got stuck at the bottom of the bus and fell to the second scene fifteen kilometers away.

After Zhang Cailiang's description, the identity of the deceased was also clarified. He was a solitary homeless old man who was holding corn stalks to make a fire...

The case is basically over here, it's not the killing and throwing of the body as mentioned when accepting the case, but the rest is finishing work, sorting out the files and submitting them to the procuratorate.

That night, after Zhang Cailiang was brought back to the bureau, the members of the task force disbanded and went home.

Xiao Ran also couldn't wait to go back to the apartment. After all, in the past three days at the police station, the time was tight and the tasks were heavy. During the day, he was non-stop, and he didn't even have time to take a bath at night. He could fall asleep immediately when he touched the bedside.

So much so that Xiao Ran himself felt a bad smell emanating from his body, so he went back and took a good hot bath, and had a good night's sleep—hope that there will be no alarm tonight.

Seeing Xiao Ran's leaving figure, Qin Zihe silently encouraged himself in his heart, he must continue to work hard, try to keep up with Xiao Ran's pace, and not be left behind!
After sleeping soundly until he woke up naturally, Xiao Ran turned off the alarm clock, feeling happy that last night was another Christmas Eve.

As soon as I was happy, I wanted to do something, so when Xiao Ran entered the forensic room with two hearty breakfasts, seeing Yu Yu happily licking the caviar on the baked egg, Xiao Ran smiled more warmly.

"Nothing to be diligent about, either a traitor or a thief!"

Yu Yu felt more and more that there was a little devil hidden under Xiao Ran's handsome and sunny skin, the kind who would eat grapes without spitting out the skin.

"Don't rape and don't steal."

Xiao Ran shook his finger, and said against his conscience: "I see that you are busy so early, I think you must have not eaten yet, so..."

"Xiao Ran, you've changed."

Yu Yu's eyes were full of surprise: "You have learned to coax girls, you are no longer the cold-faced male god I know, your image in my heart has collapsed, woo..."

Xiao Ran glared at Yu Yu: "I'll give you a good face and you'll kick your nose, right... Is the cigarette butt I gave you earlier, DNA ready? It's been a few days."

"I knew you were not so kind!"

Yu Yu snorted, as if he had seen through Xiao Ran a long time ago, and threw a USB flash drive to Xiao Ran: "The information is all in there, you can compare what you want to do... By the way, this breakfast doesn't count, I want a big meal!"

"Know it."

Xiao Ran took the USB drive, tapped Yu Yu's head, turned around and left.

As for treating guests to dinner, did you mention that? What about witnesses? Is there such a thing?

Back at the office, I opened the USB flash drive Yu Yu gave me, logged into the system and started comparing the DNA sequence.

Although I don't know why the Eye of Justice warned against this cigarette butt, but since there is any suspicion, let's compare it.

After all, only DNA seems to be left on this cigarette butt. If it is not for DNA comparison, is the Eye of Justice trying to tell Xiao Ran that this cigarette butt is a fake cigarette?
how can that be possible!
But if you can't get any results from the comparison, it's really hard to handle.

Looking at the long DNA sequence in the USB flash drive for a long time, Xiao Ran suddenly felt a sense of déjà vu to this DNA.

Where have you seen it?
Xiao Ran tapped his head, he had read too many files in the past few days, and suddenly he really couldn't remember them.

Shaking his head, Xiao Ran didn't continue to worry about it. Anyway, the system was already doing the comparison. If he had seen it a few days ago, he would definitely be able to detect it in the end.

After taking a short break in the morning, Xiao Ran opened the fingerprint library, looking through one fingerprint photo after another boredly.

In the morning, I followed Pang Jinghui to the sub-bureau of the adjacent district to combine the two theft cases into one case, and then went to the procuratorate to hand over a file. When I came back at noon, the system on the computer was still matching.

"Di!"

Not long after Xiao Ran sat down, a notification sound came from the computer in front of him.

Xiao Ran, who was eating on the table, raised his head for a moment, and then saw the system words 'matching successfully' on the computer screen.

Pushing away the food, Xiao Ran quickly clicked on the matching file.

"The 721 rape and murder case..."

The moment the electronic file was opened, Xiao Ran's heart seemed to stop beating, and his deep eyes were filled with words on the screen.

"The murderer has not been found so far, an unsolved case eight years ago!"

Xiao Ran read through the file, feeling sweat dripping from the palm of his hand.

According to the file, eight years ago, on July 21, the Public Security Bureau of City H received a report from the masses that a homicide occurred in a community.

After receiving the police report, the police from the Public Security Bureau dispatched quickly and arrived at the scene. The police found that the deceased was a young woman named Cheng Ying, aged 25 or 6, with bare berries all over her body and scars on her body and neck.

After the forensic autopsy, it was determined that the deceased died of mechanical suffocation caused by being stuck in the neck, and the wounds on the deceased were also formed before death.

Then, the forensic doctor found white viscous genetic material in the lower body of the deceased, and found suspected skin debris in the dead man's nails. After comparison, the forensic doctor determined that the genetic material and the debris came from the same person.

So the police judged that this should be a homicide after rape, a criminal case of extremely bad nature!
However, when the police inspected the scene, they found that the criminal had cleaned the scene extremely carefully, and everything was neatly placed. Except for the genetic material in the deceased, there was no other trace left.

The police started with the genetic material and kept comparing it with all the men who had been with Cheng Ying, but found nothing.

In the end, after more than two years of hard work, the police had no choice but to temporarily shelve the case, leaving only a piece of DNA information, which was occasionally brought up for comparison in the information database.

This case has also become an unsolved case in the hearts of police officers in City H...

And now, the same DNA sequence as that of the case at that time actually appeared on a cigarette butt!
　PS: Thank you for your support. Really, I don’t have any confidence in writing a book for the first time. It really feels full of strength to be affirmed by you. Thank you, there is no way to repay but to work hard!

　　
　
(End of this chapter)