Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Chen Jiang continued to operate the projection and the picture enlarged.

"But he didn't take the elevator, but went into the stairwell, and then he never appeared again. Until the time of the crime, we didn't find this person appearing in the surveillance."

"Also, everyone, please pay attention. This person is holding three bottles of purified water. They are the same brand of purified water that we found on the roof of the crime scene."

I grass!

Everyone was excited.

In the surveillance video, this person entered the corridor from the 17th floor with three bottles of purified water found at the crime scene in his hands.

what's the situation?
"How was the subsequent investigation?"

Someone asked anxiously.

"It is interesting."

Chen Jiang started to operate the surveillance.

"He's dead. This person disappeared into the corridor on the 17th floor and has not appeared in the surveillance since then. So we started investigating the surveillance of the entire building to find out where he went."

"The interesting result is that we checked all the surveillance cameras in the building and found that no surveillance camera captured this person's presence during that time period, which means that he had the possibility and time to commit the crime. If he entered the ventilation duct in the corridor on the 17th floor and reached the rooftop, then there would be no surveillance camera that could capture him during this process."

Chen Jiang continued to explain.

"We have guessed that the other party might have been prepared in advance. In fact, although Tang Meijuan jumped to her death three days ago, the criminal suspect had entered the rooftop through the ventilation duct a day in advance to avoid surveillance or to avoid police investigation."

"We continue to investigate based on this possibility. If this possibility is true, then the other party should have stayed on the rooftop for a night. On the second day, he contacted Tang Meifang and left her alone. He appeared on the rooftop and killed the other party."

"But there is a problem here. The relevant police station personnel and we arrived at the scene very shortly after Tang Meijuan committed suicide. This means that she could not have stayed on the rooftop during this period of time. She had already left through the ventilation duct."

Chen Jiang spoke faster and faster, and became more and more excited.
"So if the other party left the rooftop after Tang Meijuan's death, then he would most likely reappear in the ventilation duct on the 17th floor about half an hour after Tang Meijuan's death."

"But we checked the surveillance video in the corridor after Tang Meijuan's death and did not find any suspicious persons. This means that the suspect most likely did not appear in the corridor after coming out of the ventilation duct on the 17th floor, but instead left the building via the stairs."

"but……"

As Chen Jiang spoke, he opened another surveillance video.

"The surveillance system in your Yuanfang Building is very complete. Although there are no surveillance cameras between floors in the corridor, there is a surveillance camera on the top floor, which is the 22nd floor, leading to the rooftop. There is also a surveillance camera on the negative 1st floor, which is the location of the underground parking garage. It takes pictures of all the people coming out of the stairs and entering the garage. Everyone, please look at this surveillance camera."

The surveillance time showed that a figure appeared about 45 minutes after Tang Meijuan's death. "We checked the entire surveillance data and found that this person was the only one who came out of the staircase after Tang Meijuan's death in the garage on the negative 1 floor. Although the quality of the surveillance video is not very good, we finally found this person."

Due to the lighting and the quality of the surveillance footage, the figure captured at the stairwell on the -1 floor is a bit blurry. We can only see that the person is wearing black clothes, but because he is also wearing a hat, his cheeks are not clearly visible.

"If the other party leaves from the negative 1 floor, there are only two ways to leave the building. Either he returns to the lobby and leaves through the main entrance, or he drives away because pedestrians cannot pass through the garage on the negative 1 floor. He can only leave by car."

"Then we checked all the vehicles that drove out of the Yuanfang Building after the other party appeared in the garage on the negative 1 floor and found something interesting. Look at this car."

This time it was not a surveillance video, but a high-definition photo, a photo exported from the parking lot management system. It was a Mercedes-Benz SUV.

"This photo only shows the license plate number, not the driver. Are you sure it's this person?"

someone asked.

Chen Jiang shook his head. "We just found this photo this morning. We locked onto this photo because we were not sure at first. The camera in the parking lot could not capture the driver's appearance. Moreover, the surveillance camera on the negative first floor only captured a figure and did not capture the driver's face. But this car is very special."

"This car belongs to the boss of the engineering company where Tang Meijian works."

Ok?
Many people became alert at once.

"That's not right. Didn't the boss say he didn't go to the company that day? How come his car was suddenly driven out that day?"

"Yes! According to our previous investigation results, the boss of this company did not come to the company after work the next day, but said that he had been at the construction site. However, this person's car drove out of the underground parking garage of Yuanfang Building after Tang Meijuan's death. So we conducted a detailed investigation of the boss's actions again and found that he did not go to the construction site at all!"

"We compared the body shape of the figure found in the surveillance video on the negative 1 floor with that of the boss of the engineering company where Tang Meijuan works. So we preliminarily determined that based on the clues we have now, the boss of the engineering company where Tang Meijuan works is very likely the suspect."

"That's easy. Didn't we find a hair in the ventilation duct? The DNA has been verified. Just bring this person over and draw blood to verify the DNA. We can also get purified water!"

"We have also extracted some DNA information from the purified water. We will compare it with his. If it is him, then he must have drunk the water. Then he will not be able to escape."

Chen Jiang nodded and looked at Lu Chuan.

"Director Lu, our intention is to investigate this person directly."

In fact, Chen Jiang and his team don’t have time now, otherwise their group would go there directly to investigate and extract the relevant information.

But it's not too late now. Once we have confirmed the other party's identity, it will only take a few minutes to investigate. (End of this chapter)