(September 28) countdown to the 93rd day

A copy of the information sent by the police in Q City was placed in front of Xiao Feng.

Soon after the murder of the Yuebanwan apartment, the possible witness Yao Xiaofei appeared in the police's field of vision, and through the investigation of Yao Xiaoyi's family background, it was learned that Yao Xiaofei had an only relative named Yao Xiaoyi, who had just graduated from college in Q City. After Yao Xiaofei committed suicide by jumping off a building, Xiao Feng asked the Q City police to assist in investigating Yao Xiaoyi's situation, but was told that Yao Xiaoyi had disappeared on the afternoon of September 24.

Xiao Feng quickly sorted out the time: On the evening of September 21, there was a murder case in the apartment of the moon and a half, and Yao Xiaofei may be a witness to the murder - on September 22, police officers Cheng Zhiyuan and Liu Qing visited Yao Xiaofei and found many suspicious points - on September 23, the police visited Yao Xiaofei again and found that Yao Xiaofei's door was damaged, someone entered the room before the police, and then someone drove to follow Yao Xiaofei, Yao Xiaofei appeared at the toll station at the highway intersection after successfully getting rid of it, Yao Xiaofei turned off the phone after making a phone call at 12 o'clock at noon, and disappeared completely- On September 24th, Yao Xiaoyi, who was far away in Q City, lost contact - on September 26th, Yao Xiaofei, who had evaporated from the world, took the initiative to appear on the roof of the Wansheng Building, and then committed suicide by jumping off the building, until today, September 28th, Yao Xiaoyi, who had been mysteriously missing for nearly 4 days and 4 nights, suddenly appeared.

The document just sent by the police in Q city mentioned that Yao Xiaoyi entered the waiting hall of the Q city railway station through the security check at 8:20 this morning, and her ticket information showed that she was going to take the high-speed rail to C city at 9:45, and the high-speed rail passed through two stations in H city and N city, and arrived in C city at 11:28 on time.

The police in Q City tried to contact Yao Xiaoyi and found that the mobile phone was turned off, and then mobilized the surveillance video of the waiting hall and found that Yao Xiaoyi disappeared after entering the women's toilet. The police checked repeatedly and confirmed that Yao Xiaoyi reappeared in the waiting hall after changing her makeup and passed the ticket inspection a few minutes before the ticket inspection stopped. The young man who walked into the waiting hall side by side with Yao Xiaoyi was named Gao Fei, who worked for a network technology company in City C. Gao Fei was invited to attend a network technology forum in Q City, and was further confirmed by the police. In addition, on the morning of the disappearance, Yao Xiaoyi participated in an interview with a listed company in Q City, and successfully obtained an invitation to join this company. Yao Xiaoyi has just graduated from a prestigious university in Q City, with excellent grades, and has no bad records during her time in Q City.

The above is the detailed information about Yao Xiaoyi provided by the Q City police.

After Xiao Feng obtained this information, he immediately mobilized the exit information and surveillance video of the security checkpoint of the high-speed rail station in City C, and found important suspicious points. Yao Xiaofei passed through the security checkpoint at 12:07, but the surveillance video showed that the person who passed through the security checkpoint at this point in time was not Yao Xiaoyi after changing her makeup in the waiting hall of Q City, but another young woman dressed sexy, judging from her appearance, it was definitely not Yao Xiaoyi. At about the same time, the young man Gao Fei also passed through the security check, but this person's appearance was also not the appearance of the young man who appeared in the waiting hall of Q City. After the two people holding Yao Xiaoyi and Gao Fei tickets passed through the security check one after the other, they walked hand in hand to the entrance of the C City subway station, and then disappeared.

Xiao Feng also noticed a bigger suspicion, which arrived at 11:28 in the morning. Under normal circumstances, Yao Xiaoyi and Gao Fei's ticket information should appear at the security gate at around 11:43, and there is a 22-minute time difference between 11:43 and 12:07, if the person holding the ticket is Yao Xiaoyi and Gao Fei themselves, then what are they doing in these 22 minutes, why don't they rush out of the station?

Just now, Xiao Feng checked the information of the train that departed from Q city to C city this morning, and found that after arriving on time at 11:28, the latest arrival time was 11:43. He thought of a possibility that the person holding Yao Xiaoyi's ticket, let's just think it was Yao Xiaoyi, deliberately stopped somewhere, waited for the second high-speed train to arrive at the station, and mixed in with the crowd to pass through the security check. Thinking of Yao Xiaoyi's sudden disappearance, her sister jumping off the building and suddenly appearing, mysteriously changing makeup in the waiting hall of Q City, deliberately turning off her mobile phone and other behaviors, she is deliberately avoiding something, which can also explain the unreasonable 22-minute time difference.

But what is she hiding? What made her have to do something like a change of makeup? Is there a direct relationship between her mysterious disappearance and Yao Xiaofei's death?

At present, there has been some new progress in the investigation of Yao Xiaofei's death.

This morning, he went to Wansheng Plaza again. Based on the video of the webcamer named "Sexy Nightingale", he deduced the approximate location where the webcamer filmed the video. He climbed to the top of a building opposite the Wansheng Building, looked closely, and determined the specific location where the online anchor was standing when he shot the video. Standing in this position, the roof of the Wansheng Building is in full view, and Yao Xiaofei's every move on the roof was clearly filmed by the network anchor. This position is also a good way to capture the crowd of onlookers downstairs, and one of the videos uploaded by the webcaster was also taken from this position.

Xiao Feng stood on the roof of the building and looked around, took out his mobile phone to simulate the process of filming by the network anchor for a while, and then imagined that the network anchor would run downstairs after finishing the roof shooting, shaking the mobile phone and running until he reached the staircase. He simulated it a few times, put the phone into shooting mode, and ran to the staircase again. He carefully observed the footage he had just taken, looking at it frame by frame, and then comparing it with the video taken by the anchor. He looked up around the rooftop, and quickly pinpointed the location of a vague shadow that flashed in the webcaster's video. That location forms a triangular relationship with the roof of Yao Xiaofei's station and the roof of the network anchor station, which is on the roof of a high-rise building opposite.

Xiao Feng came to the top of another high-rise building and confirmed the location of the figure. This location also has a panoramic view of the roof of the Wansheng Building, and more importantly, from this position, the water tank at the corner of the roof of the Wansheng Building is also unobstructed.

Xiao Feng finally understood the mystery of Yao Xiaofei's mysterious disappearance of his mobile phone and backpack before jumping off the building. He speculated that the person standing in this position used the phone to coerce Yao Xiaofei to throw her phone and backpack into the trash, asked Yao Xiaofei to hide the trash can in the water tank, and then ordered Yao Xiaofei to commit suicide by jumping off the building. The mobile phone and backpack were accidentally taken away by the cleaner, and the person standing in this position found the mobile phone missing from the roof of the building that night, found the cleaner, and randomly rushed to the Sunshine Community to kill the cleaner, took away the mobile phone and backpack, and took away the clues left by Yao Xiaofei to the police. And this person is the bespectacled person Yao Xiaofei wrote on the palm of his hand.

The question is, what other means does that person have to coerce Yao Xiaofei, who was already ready to commit suicide by jumping off the building, to take the initiative to throw away his mobile phone and backpack?

The words "Yao Xiaoyi" flashed in Xiao Feng's mind, and he planned to meet this girl who had just returned to City C but disappeared.