After dealing with all the investigations, Ning Shuyi and Huo Yan set out on their way home with mixed feelings.

The return trip is relatively labor-saving, and two people only need to take a car to the nearest place with an airport and fly back to the city.

This trip to the far gate is not light, back and forth for more than a week, Ning Shuyi made up for a sleep on the plane, after the plane landed, the two of them didn't have time to go home, went straight to the unit, and first made a report on the harvest along the way.

Dong Weifeng was very happy with the results of their investigation, and he could see that they were tired all the way.

It's a pity that now is not a good time to give them vacations, so they can only insist on persevering and continue to deal with the things at hand.

After Ning Shuyi met with the rest of the group, he was also relieved to learn that everything was normal on the city's side.

"Chen Dagang and Li Yancui have been doing well lately, right? What's the case?" She asked Zhao Dabao.

Zhao Dabao waved his hand: "There is nothing abnormal, it is very good."

"Next, we have to go through Zhai Yujiang's house and Hong Xinli's residence again." Ning Shuyi said to others, "There are also two bus stops and shops around the community, which must be investigated, so we must cast a wide net, screen carefully, and screen out each other's routes."

"This is a very calm and cautious person, so the choice of route does not necessarily meet what we consider to be 'reasonable' standards." Huo Yan reminded the others.

Luo Wei was the first to pat his chest: "Don't worry! I'm sure I'm not going to make the same mistake this time!"

In the end, after the division of labor, Luo Wei, Qi Tianhua, and Zhao Dabao took a few people out to run the bus line together, Ning Shuyi and Huo Yan were tired from traveling because they had just returned from a business trip, so they were not allowed to run around, and they were responsible for expanding the scope and screening the internal monitoring of Zhai Yujiang's residence and the crime scene.

Before Ning Shuyi and Huo Yan set off, they first looked back at the part of the surveillance video that had been confirmed before.

According to the video collected at the time, it can be seen that "Yu Shufang" carried the child's small schoolbag in the morning, took the child to leave by elevator, and came back alone after a while, which should have sent the child to kindergarten early in the morning.

At about 10 o'clock in the morning on the day of the crime, she left from this side again, went downstairs as usual, passed the path in front of the unit, passed through the square in the community, and went out of the gate.

The time at the scene of the crime also corresponds to the time required to travel between the two communities.

Between these two time periods, she was never photographed in the surveillance of several pedestrian gates in the community.

Before her figure first appeared at the gate of the community at the scene of the crime, she was also not seen in the surveillance screen to the scene of the crime.

Generally speaking, this means that after sending the child home in the morning, "Yu Shufang" should have stayed at home until he went out to the scene of the crime for the second time.

But with their current speculation, this is absolutely impossible.

After Ning Shuyi and Huo Yan discussed, the two of them decided to go to that community again.

The two of them did not contact Yu Shufang this time, nor did they look for Zhai Yujiang, but went directly to the community and found the monitoring room of the property.

"The stairwell in our neighborhood also has access to the underground parking lot, right?" Ning Shuyi asked the staff of the property.

"Yes, yes!" The staff hurriedly said, "After all, sometimes you may encounter problems such as elevator failure or maintenance, and if the stairs cannot be passed, the owner will be more inconvenient."

"And how much surveillance coverage is in the stairwell?" Ning Shuyi asked again.

"We don't have cameras on the upper floors, but there is a monitor at the exit of the stairwell in the underground parking lot."

Ning Shuyi hurriedly motioned for her to help retrieve the video records of the surveillance camera outside the stairwell on the morning of the crime.

But after quickly reviewing the surveillance video that morning, to Ning Shuyi and Huo Yan's surprise, they didn't find any "Yu Shufang".

"Except for the stairs in each unit

Are there any other entrances and exits besides the underground parking lot?" Ning Shuyi asked.

The property staff subconsciously shook their heads, then realized that something was wrong, and quickly changed to nod: "Oh, there's another one!"

There's a small house next to their building, which is a clean utility storage room with a staircase that leads to the underground parking lot, which is kind of a backup emergency entrance to the underground garage."

"Is there any surveillance equipment in that utility room?"

The person in the property shook his head: "It's all in tatters, I didn't think about installing surveillance over there......

"And which is the closest surveillance camera down from this alternate emergency entrance?" Ning Shuyi continued to ask.

The property staff was a little embarrassed: "This ...... I'm so sorry, I really don't know! Our community itself is very large, and the basement is also like a maze, I have only been working here for less than a year, and I have never been in charge of the management of the garage, and I have never been there......

Why don't you wait a minute, I'll call a long-time colleague to come and help you!"

Huo Yan motioned that she didn't need to find someone, and said to Ning Shuyi, "That's too slow, delay your work. I'll go for a walk, and you'll wait here."

After speaking, he strode out of the monitoring room.

It didn't take much effort for him to go back and forth, and from this back and forth speed, it was clear that he had not just "walked" in a circle.

After coming back, he quickly searched the small screens that were densely packed on the wall, and pointed to two of them: "There is no monitoring equipment in the stairwell in the residential unit, and there is no monitoring in the utility room where the spare entrance and exit are on the ground.

Once out of the blind spot, there are two possible directions, and the closest and necessary surveillance equipment to these two directions should be these two."

"Then you are in charge of this side, and I am in charge of that side." Ning Shuyi's positioning ability to Huo Yan is still quite bottom-notch, even if the division of labor is made.

Neither of them delayed any longer, and immediately began to carefully comb through the time period after "Yu Shufang" returned home that morning.

It didn't take long for Huo Yan to make a discovery, he motioned for Ning Shuyi to go over, Ning Shuyi hurriedly came to the monitor in front of him, and sure enough, he saw a familiar figure in the slightly dimly lit surveillance screen of the underground parking lot, wearing a black shirt and pants, and walked quickly against the wall of the underground parking lot.