Watching the ambulance leave, the security guard was dumbfounded and looked at Xiao Yunshen, "Who are you? You are not the police. What are you..."

Xiao Yunshen took out his ID and said, "We are a special operations team. Please cooperate with our investigation."

With that said, he asked his men to start investigating the building, and at the same time went to the security room to investigate the surveillance.

On Saturday night, the school does not arrange late self-study, so after school on Saturday, there will be no one in the teaching building.

Lu Yuebai asked, "Will someone come in while school is out?"

The security guard said, "If you are someone from outside the school, they will definitely not be able to come in. We all need to register when we come in. No one from outside the school will come in when school is over today."

Xiao Yunshen said, "What if they were wearing school uniforms."

This alarmed the security guards. After all, they were wary of people outside the school. If someone sneaked in, it would be really difficult. Last time, someone from outside the school came in disguised as a student from the affiliated high school.

In the surveillance video, after all the students left, the teachers also left one after another. After that, no one came for a long time.

Lu Yuebai said, "That boy probably didn't leave after school, but stayed at school."

Xiao Yunshen nodded, "That man may have known those people, so he stayed, and then those people used him to attract Shen Chutang to the scene."

There is no surveillance on the rooftop, and the surveillance on the stairs to the rooftop has been destroyed. No one knows who has been there.

But there are surveillance cameras everywhere in the teaching building, and it is impossible for them to avoid every surveillance camera.

Lu Yuebai pointed to a place, "Look, there is a pair of shoes here!"

These people are probably insiders of the school who are familiar with school surveillance. Otherwise, how could they avoid every surveillance perfectly?

After discovering a pair of shoes, Lu Yuebai kept up his efforts and found another piece of clothing, "It's on the third floor. When my brother went up, they had already hid on the third floor!"

Because it was dark, the surveillance was a little blurry.

Xiao Yunshen's people checked all the classrooms and found no one there.

They have escaped.

Lu Yuebai and Xiao Yunshen were sitting in front of the surveillance camera together, and they could only check some news from here.

Xiao Yunshen controlled the mouse, "Where is the back door of your school?"

The security guard explained, "We don't open the back door, which is just over the north door. Students must go through the east door."

Lu Yuebai interjected, "What school doesn't have a place where students often climb over the wall and escape from prison? Since that person didn't go through the east gate, he must have escaped over the wall."

The security guard smiled bitterly, "I really don't know this."

Half an hour later, Lu Yuebai pointed at the surveillance camera, "Look, here!"

Xiao Yun stretched his head to see, "What?"

"People!"

"?"

Lu Yuebai went crazy, "Didn't you see the reflection? There is a reflection here. They must have walked from here!"

I have to say that Lu Yuebai is very careful.

Perhaps it was because he had been sick before and was unable to do strenuous exercise and had little entertainment, so he was more careful than others when it came to reading and checking information.

Lu Beiqin would occasionally give him some puzzle-solving books to play with, and he could often see where the problems in the patterns were at a glance.

The ground was bumpy due to rain, and the shadows on the water were indistinguishable at all, but there was a patch of white where the water had accumulated.

This kind of white is probably from the school uniform!

The two people immediately came to the place discovered by the surveillance, walked forward along the line, and climbed over the wall to find a snack street.

Xiao Yunshen put his hand on Lu Yuebai's shoulder, "You have made a meritorious service."

There are a lot of surveillance cameras on the snack street, so you can definitely take pictures.

At this time, the hospital.

Shen Chutang was sent to the hospital for rescue, while Yan Ruyu drank a lot of sleeping pills and needed gastric lavage.

The hospital notified Yan Ruyu's family, and soon Yan Feng and Kuang Shuhua came with anxious faces.

"What's going on? Why do you need gastric lavage when everything is fine?"

Lu Beiqin didn't speak, just looked at the operating room silently.

Yan Feng asked his wife to calm down and wait until further notice.

At this time, the operating room door opened, and Lu Beiqin's eyes flashed. Just as he was about to go up, he saw the nurse running away, "How is the situation inside?"

"The patient is still undergoing surgery. Don't worry. There are not enough blood packs in the operating room. I will go to the warehouse to send some blood."

Lu Beiqin nodded stiffly and continued to look at the operating room.

Yan Feng had a very good impression of Teacher Shen, and he regretted it at this time, "This is really too sinful."

Kuang Shuhua's eyes were red with worry, "What's going on? Why does my son have to have a gastric lavage when he's fine? Is it you..."

Yan Feng hurriedly covered his wife's mouth, "Don't talk nonsense!"

Lu Bei and Qin Sen looked at her coldly with cold eyes, "She didn't have to go to school today. She went because your son sent her a message. Within half an hour, she was pushed down from the fifth floor. , you ask me?”

Being pushed downstairs?!
Chapter completed!