"Can you tell me why?" Mo Yunwan asked simply and calmly, "You said you wanted to investigate Wei Gaochi, but why do we have two protagonists here?"
She pointed to the computer screen.
On the screen, on one side is Mr. Wei's home, a surveillance camera at the entrance of an ordinary residential building. Occasionally, a figure walks by; on the other side is a classroom with bright and clean windows. There are rows and rows of countless students in the camera, some of whom are immersed in watching. When writing homework, some jump up and down very lively.
"Why do you think Tang Qian knew the existence of the treasure and was able to find the photo?" Liang An asked, "Could it be that he could remember the existence of this thing when he was six years old, or that he had the ability to find the body before others discovered it?" Open the corpse's mouth, find the broken piece of porcelain first, and then put it back?"
How can an eyewitness on a street be allowed to be arbitrarily interjected and understood by others?
"So what we are looking for now is actually the intersection of these two people." Shao Zi pointed to the screen.
The images displayed on both sides are images from the same moment.
"Actually, there is one person who can open the corpse's mouth before me." Mo Yunwan replied faintly, "Doesn't that very powerful killer count? Since he can strangle someone in public without being discovered, it is not necessarily necessary to pry the mouth open by the way. It’s something big.”
Shao Zi looked a little surprised: "You mean a high school student who works as a part-time killer directs and stars himself? This idea is so fashionable."
Mo Yunwan was determined not to admit that he was making excuses, so he was happy to be treated rudely by him: "I didn't say that was the case, you have such a rich imagination."
She leaned against the table, had already taken off her white coat, and looked like an idler after finishing her work.
Even Shao Zi was surprised. She was obviously the forensic scientist in charge of all the detachments of the Criminal Investigation Brigade. Why was she bound to the three detachments these days? She always liked to come together to study the case together even during breaks when things were done.
It's like there's something delicious here.
Mo Yunwan is a magical woman who can fight with anyone, even Shao Zi, who is considered to have the best temper, is no exception, which shows how "powerful" she is.
This woman seems to have a magical ability to arouse provocative interest in others. The most outrageous thing is that in most cases it is not she who actually provokes the "war", but the object of her dispute.
I don't know if it's because her psychological suggestion skills are too strong, or because her attitude is so justified that people can't help but refute fiercely.
The picture on the screen keeps moving.
On the left, you need to pay attention to the people coming in and out of the door. It is more difficult to identify. On the right side, there is an obvious pattern, because the school has fixed start and end times.
The time currently displayed is 5:11 pm, which is still some distance from the time when Tang Qian ends get out of class on the right - 5:25 pm.
But at this time, the figure they wanted to see appeared on the left screen.
Mr. Wei Gaochiwei, who was still alive, was wearing the brown short-sleeved T-shirt he was wearing when he died, and walked out of the door of the residential building in a hurry.
"His legs are not lame yet." Mo Yunwan held his breath and leaned over, using his naked eyes to observe Wei Gaochi's walking posture in a flash, and said softly.
She was a medical student, but she did not major in forensic medicine at the beginning. She was supposed to be an ordinary doctor who treated illnesses and saved lives, and could more clearly judge the normal status of some living people.
Shao Zi called up other surveillance video records.
This is the most time-consuming step. From the corners of different streets to every passing road, search with the naked eye for the figure wearing brown short-sleeves.
The conclusion drawn was that Wei Gaochi passed through many twists and turns from the residential building where he lived, which lasted twenty-seven minutes, and finally disappeared from the sight of the last surveillance camera.
"The density of surveillance cameras in the next block is not very high." Shao Zi tried to call out the cameras in another block. "The next tracking may be a little more difficult."
At the same time, Tang Qian, who was in school, also put down his pen at five-thirty.
The last class of the day was a self-study class. After the bell rang, many people did not leave directly, but chose to finish their homework. The people who left were either dormitory students who went to the dining hall to have dinner, have fun and chat for a while, and wait for the evening self-study. Or a day student like Tang Qian, pick up his schoolbag and leave the school directly.
And Tang Qian also walked out of the school normally.
So far, there is nothing unusual about his actions, and there is not much difference between him and other students. I even said hello to the acquaintances I met by chance on the way out of school.
But after he went out, his trajectory became somewhat different.
"This is not the direction he is going home." Shao Zi frowned.
Liang An also knew that the map near Tang Qian's house had been displayed aside. The location of surveillance cameras is also under control.
Tang Qian took so many turns in the alleys of the village in the city that it was difficult for Shao Zi to catch his movements. There are not many surveillance cameras available in that place, so we can only rely on the calculation of time difference and traveling speed to find out the possible location.
Then, the three of them watched Tang Qian walk into an Internet cafe.
The time has reached exactly six o'clock.
"If I remember correctly, this child is not yet an adult." Mo Yunwan frowned, as if he felt that the original evaluation was somewhat distorted.
Shao Zi sped up the video until 7:17, when Tang Qian walked out of the Internet cafe, still carrying his conspicuous schoolbag.
A sophomore in high school has quite a lot of homework, and the thickness of that schoolbag is also quite conspicuous.
"The exact time of Wei Gaochi's death is 7:31," Shao Zi glanced at Mo Yunwan, "At least he couldn't rush to the murder scene after that, right?"
He also holds a grudge.
"Is this kid just going to the Internet cafe to play on the computer?" Mo Yunwan did not follow up on the topic.
Because the next journey was very simple, Tang Qian walked towards home again, only stopping by a convenience store to buy a pack of cigarettes.
Although it is also unusual for minors to buy cigarettes, Song Qiaoyu also said that Tang Qian's uncle did have the habit of smoking, and maybe he brought it to others.
Liang An had some doubts, but he didn't say much. He just pointed out the next target: "Look at Wei Gaochi's side."
Shao Zi finally found Wei Gaochi's destination.
Wei Gaochi on the other side has already caught a taxi on the road. At this time, the tracking method is undoubtedly more complicated, and another system needs to be used to retrieve the video.
But at least the surveillance on the highway is connected to the public security system, and the retrieval of the surveillance is much simpler. There is no need to go through the procedures to retrieve the process that Shao Zi was worried about.
The car disappeared at a major intersection.
When he reappeared, there were no passengers in the car.
"Get off the bus before 6:34." Shao Zi looked solemn, "The fare should be paid in cash, otherwise there would be no record in the system."
This is close to the place where Wei Gaochi finally died, only three kilometers away.
"What is this place?" Liang An watched as Shao Zi pulled up a nearby map.
"This is not a residential area, and no one stays for a long time. So there are no surveillance cameras..." Shao Zi was a little confused, "It is difficult to ensure that pedestrians can be photographed. However, if there are vehicles coming in and out, they can basically only enter and exit through these major roads. "
He also called up several surveillance videos of must-pass places and played them on the screen at the same time.
There are not many vehicles entering and exiting, but because the area lacking surveillance video is quite large, there are many places where people need to stop and check.
The clarity of the surveillance camera is considered to be the highest, and it is more than enough to check the figure in the driver's seat.
Soon, the target was a gray car that drove out at 6:50.
There was indeed a figure wearing a brown T-shirt in the driver's seat of the car.
He lowered his head slightly and couldn't see his face clearly, but the color of his clothes and body shape matched Wei Gaochi's.
"Is that him?" Shao Zi freezes the picture at the clearest moment, "Where is he going?"
The car's speed clearly exceeded the speed limit and disappeared after turning around the exit.
"There are no vehicles following?" Liang An asked hurriedly.
Shao Zi shook his head. There were no vehicles coming or going from this exit for the next twenty minutes.
"He was driving, and his expression couldn't be seen." Mo Yunwan seemed to realize Liang An's suspicion, "I don't know if he is injured now."
Shao Zi paused, raised his eyes and asked, "You mean, Wei Gaochi was attacked for the first time here?"
"And where does his car come from..." Liang An did not answer for the time being and continued to stare at the content on the screen, "This is also a question."
Wei Gaochi came by taxi. When he left, he drove out a car.
This car, obviously, had been parked at this location a long time ago.
