Digital Zhong Tian was following the murderer. He watched the murderer walk out of the unit building and subconsciously wanted to follow him out, but he encountered an invisible boundary and the whole person was bounced back.

Master level spatial imagination is an idea based on the clues you have mastered.

Does not have unlimited tracking capability.

Digital Zhong Tian is looking at the murderer who disappeared in the community. His body flashes and gradually disappears.

……

On the big balcony.

"Hoo..."

Zhong Tianzheng took a breath, recovered his mind, looked at the space left on the floor of the room again, and continued to walk in along the big balcony.

This balcony connects the whole flat floor. Along this balcony, you can get to any room.

Zhong Tianzheng also found that the vacant space on the balcony is obviously much more than indoor.

Deliberately left blank

Zhong Tianzheng frowned deeply, opened the door connecting the master bedroom, entered the master bedroom from the balcony, passed through the master bedroom and came to the bathroom.

Shen Mengxi has just arrived at this time and is sorting out his equipment.

Zhong Tianzheng looked down at Shen Mengxi squatting on the ground: "late?"

"Well, there's a traffic jam on the road."

Shen Mengxi did not look up.

"OK, the result will come out later. Just send me a message."

Zhong Tian nodded and went out with Ah Xiang.

There is not much information left at the scene. The cause of Li Yiguang's death should be as bad as what he inferred. The time of death should be as good as Xiao Zhang's guess.

Enter the elevator.

This elevator is relatively advanced.

On the panel of the whole elevator, there are only buttons on the first floor and the lower floor.

As for why there is no lower second floor, it should be that this is a large flat floor, there is only one family on the first floor, and the underground garage on the first floor of each building is enough.

At the top of the button.

It is a high-definition OLED display screen, which shows a face brushing interface and other operation buttons.

The display goes up. It's a camera.

On the side of the display screen is the induction button of the access control card.

If the owner goes upstairs from downstairs, either brush his face or swipe his card. After identifying the owner, the elevator database system will automatically rise to the owner's floor.

After a brief weightlessness, they came to the first floor.

When the elevator on the first floor comes out, the fire passage is opposite. The fire passage is blocked by a fire door, and there is still a face brushing and card swiping identification system on the fire door.

If you come out of the fire door of the fire passage, reach out and push the door.

Zhong Tianzheng specially learned about the security environment of the community.

In the community, the security facilities are very perfect.

Outsiders entering the community must register.

In addition to personal information, you will also ask which unit building, which owner's home and how long you will go.

Then, they will get through the owner's indoor call and confirm with the owner before release.

This is the first level.

The downstairs of each unit building is specially equipped with a separate security guard. The essence of their daily work is to stand in front of the concierge desk at the door of the unit building, receive the owner and ask each visitor entering the unit building.

Yes, of course.

The residents and security guards in the unit building basically remember and know, which is the basic work knowledge reserve.

It's like asking at the door,

The place and time of visitors will be asked clearly, and then call the home again to reconfirm with the owner.

After the owner confirmed, the security guard let you in.

The security guard swipes open the gate of the unit building, and then the security guard connects the owner with the call before operating the elevator.

The owner presses the elevator switch indoors, visitors enter the elevator, and the elevator automatically rises to the owner's floor.

This is the second level.

The whole security facilities environment is absolutely one of the best.

Even the security guards in the community can't enter the floor without the permission of the owner, unless there are leaders with higher authority.

Zhong Tianzheng and Ah Xiang came to the door of the unit building.

The security guard of this unit building is being asked by his colleagues.

Zhong Tianzheng was not in a hurry. He had just stayed indoors for a long time. The smell of blood was strong, so he put out his hand and lit a cigarette and wrapped it.

A cigarette ends.

The inquiry here is also similar.

Zhong Tianzheng put out his cigarette butts and went up.

"Brother Zheng."

The team member handed him the inquiry record.

Zhong Tianzheng took over, quickly looked at the inquiry on the record and basically understood the situation on the scene.

Zhong Tianzheng picked up several important questions and asked: "did you check your normal identity when visitors came in?"

The devil's eye watched the young security guard in front of him without any details.

"Yes, and they have all been registered."

The security guard spoke quickly and explained urgently: "this elevator can only go up after being confirmed by the owner. The owner himself also had a video conversation with the visitors before the incoming call."

In this high-end community, except for a murder case, the consequences are very serious, which can't be borne by a small security guard.

Zhong Tianzheng didn't tangle on this topic: "describe what the visitor looks like, and what he said when he checked in."

In terms of the security environment of this community, if the killer can go up, he must have the consent of the owner, which has little to do with the security.

"He said he was repairing electrical appliances and went up to the owner to repair the TV."

The security guard explained: "as for his appearance, he is very ugly. There are many spots on his face. This spot is very rare, so I am deeply impressed. By the way, he also wears a hat."

Ugly?

Zhong Tianzheng frowned and told the team: "take him to the portrait Department later to restore the killer's appearance and see if you can make a comparison in the database."

Then Zhong Tianzheng asked again, "did you check the canvas bag he carried up?"

The security guard shook his head and denied: "I checked, but I didn't find anything unusual." Then he pointed to the two monitors at the door of the unit building: "the monitor can see."

"Did you search him?"

Zhong Tian is asking questions, but this question is destined to have an answer.

A body search is definitely impossible.

"No."

The security guard shook his head and answered.

"Yes."

Zhong Tian nodded and didn't ask again.

There was basically no omission in the operation of the security guard. The killer was able to enter the floor of the deceased Li Yiguang, and the whole process was carried out with the permission of Li Yiguang.

The key point is still on Li Yiguang.

This time.

Xiao Zhang came back from the property: "brother Zheng, I have seen the monitoring in the corridor and can see the face."

Finish.

He took out his mobile phone and showed the screenshot of the monitoring to Zhong Tianzheng: "in addition, he has contacted the traffic control department to request to view the monitoring picture of the street outside the community. He has sent someone to negotiate and track the route after the killer left."