The next day, Su Nan went to Mingyue Middle School again.

In the past, Su Nan was always by the side of the deputy team, and he didn't speak quietly, but because Su Nan's appearance was too junior high, as long as the people visited by the deputy team before, they had an impression of Su Nan, which saved Su Nan's time to a large extent.

Fortunately, the monitoring of Mingyue Middle School is a small return every three months, so the monitoring within three months is completely retained, and Su Nan wants to check everything.

Su Nan first looked for the previous case.

According to the fact that Lu Yuanyuan appeared in the fifth class of the second and fifth classes of junior high school at about 10:25 that day, Su Nan pushed back to see Lu Yuanyuan's route.

Anyone who has ever been on surveillance knows that in order to find a person's trajectory in a large space, it is necessary to watch all the video images taken by the nearest camera at the same time.

This is a very time-consuming thing, but fortunately, Su Nan's patience is enough.

And just at the beginning of the case, Su Nan made a new discovery.

And this new discovery made her heart chill.

In addition to the one-dimensional teaching building of the second junior high school, the monitoring of other floors is still heard clearly.

It can be seen that Luo Xue once bumped into a person in the process of going to the second junior high school teaching building.

That person is Chu Yue'er.

But Chu Yue'er was coming out of a teacher's office in the comprehensive laboratory building, and when she passed the path next to the second junior high school teaching building, Luo Xue, who was a little depressed, bumped into Chu Yue'er.

After bumping into someone, Luo Xue came back to her senses, bowed to Chu Yue'er and apologized, and then continued to walk forward.

Chu Yue'er seemed to be very unhappy, she turned her head and frowned and glanced at Luo Xue, and it was also that glance that she saw Luo Xue turning at the intersection in front of her and entering the second junior high school teaching building.

Luo Xue didn't go to the complex? But what did she do in the second year of junior high school? There is no one in the second year of junior high school today.

Probably too curious, so Chu Yue'er kept looking back during the process of returning to the third junior high school teaching building.

It was precisely because of Chu Xue'er's inattentiveness that she soon bumped into someone.

This time it was Lu Yuanyuan who bumped into it.

Lu Yuanyuan saw that it was Chu Yue'er, grabbed him and asked something, Chu Yue'er answered her while turning her head and raising her chin, as if she was giving Lu Yuanyuan the appearance of the road.

Su Nan adjusted the monitoring and comparison from several angles, and when Chu Yue'er was giving Lu Yuanyuan, Luo Xue happened to be on the sixth floor of the second junior high school teaching building.

And after Lu Yuanyuan received the information that Chu Yue'er was wearing, he did not leave immediately, but stayed in place for a few seconds, as if confirming Luo Xue's final destination, and then continued to walk forward with the two boys.

In other words, if it weren't for Chu Yue'er, Lu Yuanyuan might not have been able to find Luo Xue that day, and Luo Xue might not have jumped off the building.

This discovery caused an indescribable chill to rise in Su Nan's back.

There is a conflict between Lu Yuanyuan and Luo Xue, and Su Nan doesn't believe that Chu Yue'er, who is Lu Yuanyuan's good friend, will not know about this.

Especially on that day, Lu Yuanyuan was followed by two tall and big boys, and at first glance, they were not good.

In such a situation, Chu Yue'er also showed them the way......

Su Nan pressed his temples, maybe he shouldn't think about people's hearts so complicated, maybe Chu Yue'er was really just subconsciously out of the principle of helping people at that time, and didn't think about it so much?

Su Nan continued to investigate, but she couldn't accept it when she found out later.