Chen Weibin and Wu Lei have reached the end of that journey, but they have not made any special discoveries along the way. Chen Weibin stood on the sidewalk, his hands on the guardrail on the outside side of the sidewalk, and poked his head out to look down.

I saw that outside the guardrail was a vertical fort, about ten meters from the ground below, and below the fort was a large open space, which was overgrown with weeds. Chen Weibin looked into the distance again, and on the edge of the weedy field were some prefabricated houses used for construction sites. Suddenly, in the middle of two prefabricated houses about 30 meters away, Chen Weibin found that a white pole with a height of about 20 meters had come out from the ground, and several large words "Road Settlement Observation" were sprayed on the pole, which was very conspicuous.

Chen Weibin immediately became excited! In order to observe the subsidence of the road all year round, the memory card used to store the video is very large and has a long storage period. According to the installation position of the camera, it can be inferred that it is used to observe the section of the road where it is standing, and it is also just enough to photograph the passing of cars on the road of 300 meters.

Chen Weibin hurriedly instructed Wu Lei to contact the management unit of the camera, extract the video of Zhou Yuanliang's car passing by in the early morning of the day of the crime, and take it to the detachment to see. Then, Chen Weibin hailed a taxi on the side of the road to return to the detachment, and Wu Lei returned to the parking position and drove the police car to extract the video footage.

At five o'clock in the afternoon, Wu Lei took a USB drive, came to Chen Weibin's office, and said: "Chen detachment, we have extracted the video taken by that camera, and the video of that day has really not been covered!" We looked and found Zhou Yuanliang's Mercedes-Benz. ”

"Good!" Chen Weibin nodded and said happily, "Immediately put the video on the big screen in the conference room, notify Li Jun, and take a look together in ten minutes." ”

"Yes." Wu Lei replied while going out to make arrangements.

Although the missing video was found, it didn't necessarily have any effect. In Chen Weibin's heart, it is just necessary to be foolproof and not miss a detail.

Ten minutes later, Chen Weibin, Li Jun, and several criminal policemen from the three major teams were sitting in the conference room, and Wu Lei began to play the copied video at a normal speed.

In the video, on the road of more than 300 meters, an off-road vehicle appears on the screen from left to right. In less than half a minute, the video was quickly finished.

"Is that the Mercedes-Benz off-road vehicle that Zhou Yuanliang was riding?" Chen Weibin asked Li Jun.

"Yes. Although you can't see the car logo and license plate, judging from the outline and lights of the car, it is Zhou Yuanliang's car! Li Jun replied affirmatively.

"This is the one that was missing from the last video, right?" Chen Weibin asked.

"Yes. The video we extracted some time ago was taken at close range by the high-definition camera of the traffic police department, which is very clear, and we have carefully checked it and found nothing unusual. But...... In this video, because the distance of the camera is relatively far away, and the light of the street lamp is relatively dim, the image is relatively blurry, and you can only see the vehicle driving normally, and there is nothing unusual for a while. ”

"Wu Lei, slow down the playback speed by half and take a look." Chen Weibin said.

"Yes." Wu Lei slowed down and played it again.

However, nothing has been discovered.

"Slow down another half and see." Chen Weibin said.

As before, nothing was found.

"Slow down another half." Chen Weibin said.

Wu Lei slowed down the playback again. The video was moving slowly at one-eighth of the normal speed, and Chen Weibin stared intently at the big screen carefully.

"Stop!" Suddenly, when the video was played to the sixteenth second, Chen Weibin immediately shouted.

Chen Weibin noticed that the reflection of the street lamp on the window glass had changed slightly.

Wu Lei immediately stopped playing.

"Pour back a little, just a little!" Chen Weibin said.

Wu Lei played back very slowly.

"Stop, this is it!" Chen Weibin shouted quickly.

Wu Lei immediately stopped.

Chen Weibin immediately stood up, pointed to the big screen, and said: "Look, is the reflection of the glass on the right rear seat window a little different from the street lamp?" ”

Everyone stood up.

"Yes, there is a change." Li Jun took a closer look and continued, "The upper part of the window glass is black, and there is no reflection from the street lights!" ”

"Yes." Chen Weibin nodded, and then said, "Wu Lei, go back a little more." ”

Wu Lei played it back a little more.

"Stop!" Chen Weibin stopped the playback again and said loudly, "Look again, is there a reflection of street lights on the window glass at this point?" ”

"There really is! That is to say...... At that moment, someone rolled down the window glass! Li Jun began to get excited.

"That's right! Wu Lei, it's the speed just now, play it back! Chen Weibin said.

Wu Lei began to play backwards.

Immediately after the window glass was rolled down, a small white dot appeared on the video.

"Stop!" Chen Weibin shouted quickly.

Wu Lei stopped, and everyone in the conference room saw the small white dot.

"What's that?" Everyone asked.

Chen Weibin's heart was in his throat.

"I can't see clearly! It looks like something has been thrown out of the car. Li Jun said.

"The light is too dim to see what's going on inside the car! At that time, in the right back seat, it was Zhou Yuanliang who was sitting, right? Chen Weibin asked.

"It's him! According to the surveillance video at the entrance of the Nangong nightclub, when Zhou Yuanliang got into the car, he was sitting in the right back seat. And, judging from the previously extracted vehicle driving video and this video, no one got in the car or got out of the car halfway, and the one on the right rear seat must still be Zhou Yuanliang! Li Jun said.

"That little thing...... Who would have thrown it? Chen Weibin muttered to himself.

Li Jun took over: "This ...... I think Zhou Yuanliang is the most likely! There were only two people in the car at that time, Zhou Yuanliang and the driver Zhao Xiaojiang. Zhao Xiaojiang is driving, sitting in the driver's seat, if he wants to throw something outside, he only needs to open the window glass next to the driver's seat, and he can't throw it out from the window of the right rear seat! ”

"Can Zhao Xiaojiang control the window glass in the right back seat?" Chen Weibin asked.

"That's fine! We once inspected the car, and there were buttons on the door next to the driver's seat to control all the windows in the car! Li Jun said with certainty.

Chen Weibin sat down and didn't speak again, his brain was running rapidly. If that little thing was really thrown out by Zhou Yuanliang, what would Zhou Yuanliang throw out at that time? Is it something like a napkin thrown around? Also, why did he choose to throw it out instead of temporarily leaving it in the car and waiting for the driver to clean up the car? Zhou Yuanliang at that time, what was he thinking?