The security office of the community is located in a corner of the entire community, and before going to Li Li's residence, Qiao Chuan first walked around the entire community.

As security guard Wang Shoude said, only the gate of the entire community has installed monitoring, and the monitoring of the three gates in and out of the community has been enabled.

The surrounding area of the community is closed with an iron fence, the height of the iron fence is about 2.5 meters, and the galvanized iron thorns are wrapped around the top of the iron fence.

If the murderer had not transported the body from the main entrance, but from the top of the fence, such a height would have been almost impossible without touching the iron thorns.

It seems that the murderer has a high probability of transporting the body through the gate of the community, which indicates that the murderer will definitely be recorded by the gate monitoring of the community.

If the murderer wants to transport the body, he must use a means of transportation, and this means of transportation must be ......

Car.

Qiao Chuan remembered in his heart that when Chen Ru performed an autopsy, he found that Li Li had two corpse spots on her body, one of which was on the side......

That's right, to form such a corpse spot, Li Li must have been lying on her side for a period of time after her death, and this way of lying on her side should be in the ......

The trunk of the vehicle!

Due to the lack of width of the vehicle, the murderer put Li Li's body lying on his side in the trunk of the vehicle, and formed a side corpse spot during transportation, and the formation of the corpse spot was about two hours after death, which means that the murderer put Li Li's body in the trunk for more than two hours, so what was he waiting for?

Wait for the rain to rain, and wait for the people next to the Huaizhi River to leave before throwing the corpse.

That's right, it's consistent with all the findings on the scene, except for the word "Feng" that is missing.

What exactly does that word represent, and does it really have nothing to do with the whole case?

Qiao Chuan scratched his head, forget it, don't think about that word for the time being.

Qiao Chuan's thoughts returned to the whole case.

Since Li Li took the elevator upstairs at that time, but did not take the elevator downstairs, is it possible to take the stairs?

"Do you know that Li Li usually has a habit of not taking the elevator when she goes downstairs?"

In order to understand the overall situation of the community, Qiao Chuan brought the security guard Wang Shoude with him, and by the way, he learned some information about Li Li, after all, he should be the most reasonable person among all the people currently investigated.

"Huh?"

Wang Shoude didn't think that Qiao Chuan would ask himself, so he thought hard about it, and then said:

"No, I see that she takes the elevator quite a lot, and I don't know if she takes the stairs at other times, and because there are not too many people who usually take the stairs, the stairs are not very clean, I feel that Li Li should not usually take the stairs."

Qiao Chuan nodded, it seems that Li Li should not have gone downstairs by herself, but was taken downstairs after being killed by the murderer.

This shows that the murderer did it at Li Li's home, and if this is the case, the possibility of an acquaintance committing the crime is the greatest.

At this time, two police cars drove into the community, and the people in the community were also frightened by the formation of the police car, and many people went downstairs to see the excitement.

Compared with Li Li's residence, Qiao Chuan is more interested in the stairs of the 15 buildings, when Wang Shoude said that the stairs are not cleaned often, Qiao Chuan felt happy in his heart, if he does not clean often, it means that more traces can be retained, I hope these traces have not been destroyed.

Sure enough, some shoe prints were found on the stairs of 15 buildings, the size of which looked the same as the shoe prints found on the side of the Huaizhi River, and the bottom of the shoe prints looked the same.

This shoe print extended from the basement to the fourth floor of this building, and did not go any further, which made Qiao Chuan even more convinced that this shoe print and the shoe print at the Huaizhi River scene came from the same person.

Qiao Chuan arranged for some people to continue to survey the stairs, while he led the other people to prepare to go to the house where Li Li lived.

Qiao Chuan asked the security guard Wang Shoude when he came to the building where Li Li lived, and he only knew the floor where Li Li lived, and he didn't know which household Li Li lived in. Originally, Qiao Chuan also planned to conduct an investigation among the three households on the fourth floor of Building 15, but then he remembered that he got the room statistics table that had been handed over from the sales department.

The statistical table shows that two of the 15 fourth-floor buildings have been sold.

Which of these two households are they?

Qiao Chuan closed his eyes and tried to recall the picture he had seen in the surveillance before: Li Li stepped out of the elevator and turned right.

That's right, this is it.

15 buildings 403.

"Xiao Cao!"

Qiao Chuan shouted.

Xiao Cao looked at Qiao Chuan and knew what he wanted to do. Xiao Cao asked for the tools to unlock the lock from the people in the technical department, although he didn't know how Qiao Chuan knew that the room 403 was the room they were looking for, but he knew that since Qiao Chuan had already determined the matter, then it must be right.

Xiao Cao put on his gloves, picked up the tool for unlocking, inserted the lock hole, and pulled it several times in a row, and the door opened with a sound of locking.

It's not that the technical department doesn't have people who don't pick the lock, it's just that Qiao Chuan is used to this kind of technology of Xiao Cao, no matter what lock he encounters, Xiao Cao can always open it quickly.

Xiao Cao looked at Qiao Chuan, he saw Qiao Chuan nodding, and opened the door.

The door opened without making a sound.

The April sunlight spills in through the floor-to-ceiling windows on the balcony, and the reflection of the wooden floor makes the whole room appear a dark yellow, and the interior decoration design is very popular.

The angle of the light is good, just enough to emit traces on the floor of the house.

Qiao Chuan did not step into this room, but leaned down to look at the wooden floor, and he found a very strange phenomenon, which seemed very reasonable but not so reasonable.

There is not a single footprint on the smooth wooden floor, as if it has been carefully cleaned.

It seemed to welcome Qiao Chuan's arrival.