Xun Mu also cast his gaze over: "Old Wei, please tell me in detail."

"The conclusions are mainly drawn from the analysis of various traces such as footprints." Old Wei pushed up the glasses on the bridge of his nose and said: "I guess you don't like to hear the specific analysis process, so I will just show the restored 3D animation.

, who can help me insert this USB flash drive?"

"I'll do it." Qi Yuan immediately raised his hand, then stood up and walked to him, took the USB flash drive and immediately ran to the multimedia device, inserted the USB flash drive into it, then opened the folder, found the video file, and started playing.

Lao Wei explained at the same time, saying: "This is probably the situation. One of the two colleagues, Cao Mingyang and Chu Xunliang, passed by the first scene - of course, it is also possible that he was lured here, because this location is relatively remote and nearby

There are no surveillance cameras.

At this moment, a suspect came over, and the two stood there chatting for a while. I speculated that the suspect lied about something.

After that, the two of them walked out. After walking into the corner, another person suddenly rushed out and quickly controlled him. He may have used cotton cloth soaked in ether, or other similar means. The specifics cannot be determined, but in short, he was let

He passed out quickly and was unable to scream.

After that, the criminal took off all the equipment on his body, threw the useless ones that might have positioning devices into a nearby trash can, and kept the useful ones. Then he put the person in the car and stripped him again.

His clothes were also thrown away.

Another person came right after him. Of course, he was probably tricked by them, but for some reason, they didn't plan to do the same thing this time. It may also be that the remaining 'him' was more alert and didn't fall for the trick.

In short, this time, someone looked at him from behind, and then hit him hard on the head with a blunt instrument such as a stick. He should have reacted and turned around instantly - this can be seen from the footprints we repaired

He could clearly see it - but he still didn't hide away and was hit right on the spot.

After that, he lost his balance, and the long footprints that Xiao Qi found at the scene were made in this way. However, he did not fall to the ground, and was supported by others, and another person lifted his feet and carried him away.

, and then also stripped off all the equipment on him.

Finally, because there were some blood stains on the ground, they rinsed it roughly. Instead of using a washbasin, I guess they used mineral water, a large bottle, I think it was 4 liters in size. The focus of cleaning was the blood stains rather than the footprints, so although the scene was

It was damaged, but only partially, and many clues remained.

After doing this, the criminals took Cao Mingyang and Chu Xunliang away. How long the whole process lasted, and how long the time interval was between the two people being charged one after another, we cannot estimate, but it should not be too long.

According to other colleagues, Cao Mingyang and Chu Xunliang should have disappeared around 10:30. After their disappearance, they needed to be transferred to the second scene, which was the scene of murder, injury and video recording. The two places were not far apart.

But it also takes time.

The video was first released around 12:30, and I heard from my colleagues in the picture detection department that there were traces of simple and rough editing. They might have watched it again during the period, so it might have been at 12 or even

Earlier, around 11:30, the video recording was completed.

From 10:30 to 11:30... let's just say it's 12 o'clock. This interval is already too short, so the criminals didn't have enough time to kidnap Cao Mingyang and Chu Xunliang successively. On the contrary, it was very tense."

As soon as Lao Wei finished speaking, the video just finished playing.

Xun Mu asked Qi Yuan to put him aside again.

After playing it again, Su Ping withdrew his gaze, focused on the case file again, flipped through it again, and then said: "The video is very intuitive and comprehensive. It is not easy to do this. There are extracts at the scene. Blood?"

"I tried to extract it, but it's hard to say whether the blood can be separated." Old Wei shook his head, looked at Tu Zhongxin, and chuckled: "The next work depends on Director Tu."

"Well, I heard that I have received several test materials." Tu Zhongxin said, "After the meeting ends, I will see if I can extract the blood cells by evaporation, centrifugation or other methods. If so, I can detect DNA from them. You can determine who was violently attacked. However, are you sure it was the violent attack behind you?"

"Sure." Old Wei nodded.

"There is another clue." Su Ping said softly: "Mineral water. Old Wei, what is the basis for you to draw this conclusion?"

"Analyze the footprints, and then infer the direction and size of the water flow, and further analyze the outflow speed and diameter." Old Wei immediately answered: "The impact of the water flow is relatively weak, but it is still much stronger than ordinary beverage bottles and mineral water bottles."

After a pause, he continued: "We determined the direct impact point of the water flow, and after analyzing the direct impact point, we determined that the water flow was imposed with a horizontal initial velocity facing away from the garbage pool, and the dumping height should be sixty. About centimeters.

Then we conducted a large number of experimental simulations and finally determined that the bottle mouth radius of the water container is slightly larger than that of common beverage bottles and mineral water bottles, about one-third larger.

After that, we further compared the mouths of various Spelling bottles on the market, and finally determined that it was probably a 4-liter beverage bottle, which is a bit sweet.

Of course, the caliber of the five-liter specification seems to be the same, but the reason why the four-liter specification was finally determined was that we found this mineral water bottle in the garbage pool. There was still a small amount of water left in it, about twenty or thirty milliliters. Unfortunately, there were no fingerprints on it. The perpetrator was obviously wearing gloves."

As he spoke, he walked aside, took a posture, and said: "According to the results of our gait analysis, he was in this posture at that time, bending over, holding the ear on the mouth of the bottle with his left hand, and holding the bottle with his right hand. I dumped it and flushed it for a while, and then I left after all the water in the bucket was flushed."

Xun Mu touched his chin: "So, where did this bottle of water come from? Did you bring it yourself? Or... bought it from a nearby convenience store?"

"Captain Xun, it's still early. I'll immediately go to the convenience store near the crime scene to ask." Wang Zhao stood up immediately and said, "Ask if anyone bought it between ten and twelve o'clock in the morning. Mineral water of this size can be used to handcuff the surveillance camera back."

"Okay." Xun Mu nodded and said, "Let's go now. Go back quickly. If you find anything, call and report it as soon as possible."

"Yes!" Wang Zhao saluted, then looked around and asked, "Who is coming with me?"

Qi Yuan raised his hand again: "Brother Wang, let me go with you."
Chapter completed!