Ye Fan sat in front of the computer, and the screen was divided into four grids, which respectively showed the surveillance video of the two gates of the community, the lobby of the apartment building where the crime occurred, and the surveillance video at the door of Li Lanke's house.

The video time is played at 9 o'clock in the evening on December 31, and during this time period, there are not many people entering and exiting the entrance of the community, and they are basically owners who drive in and out of the car.

Dai Lumao is indeed very generous, this high-end community is surrounded by perfect facilities, and the property security is also good.

That night, the temperature was so low, the weather was very abnormal, the security guards of the two gates were dutifully in the security booth, and some owners forgot to bring their key cards, or there were visitors to visit, they would also brave the cold wind to register for the owners.

The police have also verified the registration forms of the outsiders that night, a total of twenty-three, all of them are relatives and friends of the owners who live in the community, and generally the owners themselves bring them, even if they don't, the security guards will dutifully call the owners to confirm.

Ye Fan looked at them one by one very carefully, and checked them one by one with the registration form for the visit that night in the community, and they could basically match, that is, the people who were sitting in and out of the car, she looked very carefully, and imprinted the faces of the people she could see into her mind.

The hall of the apartment was brightly lit, and at 9:05 a.m., five people came in from outside, including a young couple with a child of five or six years old, and two middle-aged men, and the five entered the elevator and pressed the fifth and ninth floors respectively.

At 9:08 a.m., four young boys and girls of fifteen or sixteen years old came in and pressed the elevator on the eleventh floor.

At 9:11, a cleaner dressed in property clothing walked in with tools, and instead of taking the elevator, he entered the safe passage.

At 9:20, Li Lanke, who was wearing a nickname coat, came in with a lady's shoulder bag, and in the unclear surveillance video, it can be seen that she had a tired look on her face, and when she entered the elevator, she pressed her neck with her hand.

When the elevator door was just about to close, someone outside pressed it, and then opened it again, and a man wearing a peaked cap came in, wearing a punk leather coat, and when he entered the elevator, he glanced sideways at Li Lanke, his mouth moved, as if he said something, but half of his face was covered by the brim of the hat, and he couldn't see the expression on his face.

The expression on Li Lanke's face was relatively clear, she frowned and glared at the man in the cap with disgust, took two steps back, and stayed away from him.

The corner of the cap man's mouth showed a malicious smile, and when he leaned forward to press the elevator button, he deliberately turned sideways to Li Lanke, and Li Lanke could be seen scolding and scolding.

Li Lanke lived on the fourth floor, and soon arrived, the man in the cap stood close to the elevator door, and when she was about to get out of the elevator, he deliberately blocked most of the doorway, and when she scolded and went out sideways, he also had intimate contact with her body.

The man in the cap pressed on the eighteenth floor, and when he was the only one in the elevator, he raised his hand and touched the chest that was in contact with Li Lanke, and smiled obscenely.

......

At 9:47, the elevator door opened, and nine people came down, standing a little distance from each other, three of them together, four of them together, and two others, all alone.

At 9:52 a.m., an electrician dressed in property costume walked into the apartment building with a tool satchel on his back, and greeted a certain owner who had just gone downstairs.

At 10:01, a pair of greasy and crooked young men and women stepped out of the elevator and hugged each other without scruples under the surveillance video, almost like conjoined babies.

At 10:11, the electrician with the tool satchel on his back walked out of the elevator, lifted the shoulder bag strap on his shoulder, walked a little fast, and shrunk his neck when he left the apartment door, as if he was cold by the cold wind outside, pulled the zipper on his clothes tightly, buried half of his face under the collar, and then mustered up the courage to rush into the wind and snow outside.

At 10:28, the cleaning staff came down from another elevator marked with passenger elevators, carrying two large black plastic bags in their hands, holding cleaning tools, and bent their backs slightly.

The cleaner put down the garbage bag in his hand, took the mop and carefully mopped the ground, and then lifted the garbage bag again and walked out of the apartment door.

......

The apartment building where Li Lanke lives is a two-ladder and three-family house, and the public corridor on each floor is equipped with surveillance, and the three households on the fourth floor, in addition to Li Lanke living alone, there are two other households, one of which is a family of five living and the other is uninhabited all year round.

The police investigated the two families at the beginning, and on the night of the incident, the family of five went out to eat and returned home at about half past nine, and all five said that they did not hear any unusual noise from Li Lanke's house at that time.

Ye Fan also saw in the surveillance video in the hall that this family entered the apartment building at 9:36 and appeared in the surveillance in the corridor on the fourth floor at 9:39.

The time of the surveillance video was seen from about nine o'clock to nearly eleven o'clock, in order to save time, she turned on the maximum double speed, of course, this speed is completely slowed down in her eyes, and she is not afraid of missing anything at all.

Looking at the computer with such a high degree of concentration, her eyes became sour.

Ye Fan's attention was on those who entered and exited the apartment building alone, and the man with a peaked cap who entered the elevator with Li Lanke and behaved irregularly towards her, as well as the electrician and cleaner in the property office.

Not only were the three men alone, but they were not able to see their full picture either because they were wearing hats or because of the angle monitoring.

Ye Fan picked up a copy of the investigation data of the community from his desk, which contained the confessions of the employees on duty that night in the property office, including the gate, as well as the security guards patrolling around, other employees who were active in the vicinity of the apartment building where the crime occurred, and naturally the electrician and cleaner who appeared in the surveillance video.

The electrician who went to the apartment building that night and the cleaner who was responsible for cleaning the building were found.

The materials include not only biographies of their lives, transcripts of confessions, but also photographs of them.

The electrician is a 56-year-old man who has been working in this property for five years, is an old electrician, with the appearance of an ordinary person, and outsiders come to Lucheng to work and live in the company dormitory.

That night, a family on the sixth floor called the property to say that the external electrical box was short-circuited, and the electricity at home was not used, so he braved the wind and snow to rush from the company dormitory to the maintenance, the whole process took less than 20 minutes, and the family who called the maintenance testified.

The electrician's suspicion is largely ruled out.