As soon as he said that, Zhou Nan wanted to sew his mouth. Is it true that he has too much time to breathe? What a big fake, it is estimated that he has three points more than his normal working schedule.

Sleep until you wake up naturally, cook instant noodles, tease girls, and raise Doule small trumpets. Is it not moist in small lives? Why do you have to ask for trouble?

It’s too late to find a supplement if you are interested in finding a supplement!

"Okay, Zhou Zhi, here!" Zhang Gaoming could still hold it, but Zhang Yaobin jumped up, and he was almost pushing it away directly.

No matter what, if one spits and one nail is said, there is no reason to take it back. So in Ma Chu's meaningful gaze, Zhou Nan pushed to the serious crime detachment half-heartedly.

On the way, Zhou Nan finally had the opportunity to speak, "I just look at it, maybe it won't work."

It’s not that he is humble, Luo Sheng didn’t even see the reason. He could tell if he doesn’t make sense, right?

Zhang Gaoming was calm and steady, but Zhang Yaobin was still coming forward. "Chengqing Chengqing, you can help you, which is the greatest help to us."

The tail shook again, Zhou Nan couldn't help but wonder, can human changes be so big? The young man really didn't do this before.

I don't think about why this change is.

Zhou Nan is not unfamiliar with the territory of the Serious Crime Detachment, and the people inside are more familiar with each other. Because of the case alone, he has been exposed to many people more than once, and he can still call them up the names.

"Old Liu, is the lumbar spine better?"

"Brother Jiang, your son is not doing his homework well yet?"

"Little Tong plays some games."

“…”

He greeted a few people casually, and everyone's already eager eyes became more warm. Naturally, there were also many mutterings in their hearts, but they were not the mainstream.

Zhang Gaoming's expression was a little complicated for a moment. Although his deputy captain had long been promoted, this person... is more suitable for this position than him in terms of business ability and leadership affinity.

As he thought about it, Zhang Gaoming suddenly laughed. Oh, he was still obsessed with it. He was not in a high position enough. No wonder he could go further.

Retrieving his true heart, Zhang Gaoming brought the rhythm back to the case itself. After entering the small conference room, he played three videos one by one on the projection screen.

Intuitive images are thousands of times better than pale language.

The quality of the first picture is obviously different from the last two pictures, indicating the huge difference in the year.

But in the picture, in the dark and closed room, the man wearing a black robe and a mask acted violently at the woman tied to the bed, but for ten years.

It has nothing to do with sexual crimes, purely violent punches and kicks, plus blunt-arm strikes, and those with good eyes are like Zhou Nan, and they can even clearly see the blood beads that splash in an instant, just like a close-up shot in a movie.

Because the angle is limited, you cannot see the faces of the perpetrator and the victim at all times, but when there is no picture, the screams outside the picture are even more unacceptable.

One is a scream, the other is an excited scream. The two voices are mixed together to form a non-complex but cruel enough hell music.

More than thirty minutes, from abundant, to weak, to completely silent...

There is no fast forward, and the length varies depending on the severity of the perpetrator's attack and the victim's physical constitution, ranging from thirty to forty minutes.

The three sections took nearly two hours in total, and there was no fast forwarding. Zhou Nan looked at them bit by bit and only came to a conclusion that the murderer was very careful. It was normal. I believe that compared to him, the personnel on Zhang Gaoming's side should have studied them repeatedly one frame after another, so he didn't think he could see any "breakthrough" at once.

Although I don’t know how many times I have watched these three videos over and over again, my mood was gone every time I watched them, but the indignation and excitement at the beginning became heavier. The picture went out, Zhang Gaoming nodded to his apprentice, and Zhang Yaobin hurriedly reported the current investigation one by one, focusing on several key issues.

"First is the problem of death determination. Because there are only videos, no corpses have been found so far. However, Zhou Zhi, you are proficient in forensic medicine. I believe that there is no need to say more about it. Some physiological reactions in the video cannot be faked at all. Even if it is the first case video ten years ago, it is not difficult to determine this in the repaired high-definition version."

Zhou Nan was silent.

Death is the termination of the body's life activities and metabolism. Currently, the standards are divided into heart death and brain death.

Brain death does not meet the test conditions, so let’s not mention it. Heart death means that the blood circulation of a person is completely stopped, pulse and breathing. This is a recognized standard of death in humans and is also the easiest form to observe and determine.

In the video, the black robe did not give up violence as soon as the victim stopped calling for help, but was immersed in his emotions and stopped moving. It took at least five to ten minutes to stop moving. During this process, the victim's breathing was not observed except for the stopping convulsions of his body. Because it was a blunt weapon, there were not many bleeding areas, but it was not difficult to see the blood flow slowed down until it solidified. Of course, there were more details, so there was no need to go into details.

After watching the screen, Zhang Yaobin continued, "The second is the question of whether the murderer is the same person. After our preliminary discussion, it is determined. From the three videos, we can simply observe that the places of the violence in the last two cases are the same, but this is not the main reason we determine. The main reasons are the following two points: First, the movements of the black robe. The figure may be distorted over the past ten years, but it is difficult to change the movements. Every time he swings a fist or a baton, his right shoulder will habitually move upwards to this angle."

As he said that, Zhang Yaobin personally demonstrated it, and he did some of the differences.

"The second and most important point is here," Zhang Yaobin put down the information in his hand and turned around and started operating the computer.

In the screen projection, in the first video, a certain fist waving in the black robe was instantly frozen, partially enlarged, and then enlarged.

Even with Zhou Nan's eyes, I didn't notice it just now. In a certain frame of the picture, the guy's sleeve was slightly raised for a moment, and a small piece of his wrist was exposed.

The part that has been enlarged by the computer now focuses on the exposed skin between its gloves and sleeves, with a dark shadow.

"Is this... a tattoo?"

Zhou Nan said that even after processing, the picture still cannot be clearly seen.

Zhang Yaobin nodded, and Ma Liuer's operation called out a certain frame in the third video. Thanks to the rapid development of modern equipment, the screen after processing this time is much clearer.

"Insect? Snake? Fish?"

Despite this, what Zhou Nan said was still not sure. The main exposed part was too small and was not enough to judge.

It's really hard for technicians to dig out such inconspicuous things, and I don't know how many eye drops I dripped.

Zhang Yaobin shook his head, "We have consulted many tattoo artists, but they can't confirm that the main thing is tattoos, which represent personality and all the possibilities for tattooing."
Chapter completed!