Ye Anjin watched the two brothers competing with each other. He couldn't help but be curious and knocked on the door.
The two of them looked back and were immediately overjoyed.
"Professor An has come at the right time. Come over quickly and find out who this female student is?"
Feng Gang ran over and pulled her in front of the screen, asking her to sit where he had just been, and he pulled a small square stool to sit beside him.
Ye Anjin took a look and pressed the pause button on the video. On the still screen, a girl wearing a forensic medical school uniform stood sideways in front of the building, as if taking a taxi.
Needless to say, at first glance, this female student does look like Zhou Xinying, but upon further inspection, she looks like Li Sisi in many places.
Don't blame them for being so angry that they were so angry.
Ye Anjin slides the mouse, the pause mode is resolved, and the video enters slow-forward mode.
The time showed that it was 10:40 on the night Zhou Xinying was murdered.
Downstairs in the apartment Zhou Xinying rented, the female student walked out of the corridor and stood on the roadside waiting for the bus.
"We previously found out that Zhou Xinying's rental house was under surveillance. Didn't it mean that she entered the door that night and never came out again?"
All the questions that came to Ye Anjin's mind when he read Zheng Jiying's diary immediately came to mind.
"Zheng Jiying told us that Zhou Xinying rented the building in the middle of the building. In order to maximize profits, the landlord removed the stairs between the two floors, but the corridor entrance was still left, separated by a wooden board. After moving in, Zhou Xinying felt uncomfortable It was safe, so I rented the floor downstairs, installed a convenient spiral staircase, and moved the wooden board away."
Feng Gang said, "But when we went to her rental house that day, the wooden board was not only restored to its original position, but also had a tea cabinet on it. We didn't expect that she rented both the upper and lower floors, and they could go up and down."
Qiao Xin nodded, "That's right. Zheng Jiying said that that night, she and Li Sisi went to Zhou Xinying's place, and Zhou Xinying opened the door for them downstairs. So we only looked at the surveillance at the door upstairs and didn't see Zheng Ji Ying and Li Sisi come in and out."
"After Zheng Jiying told us, we immediately went to see it. The strange thing was that there was no spiral staircase on the downstairs floor. The landlord also said that there was someone else renting the house downstairs, a foreigner. He went there not long after renting the house. I’m doing business out of town.”
Feng Gang said, "We also contacted and summoned this out-of-town businessman, and he said that this was indeed the case. He rented the house for a year, but only lived there for a month and a half before going out to do errands. We also specifically asked him to use the key to open the door to verify After a moment, he successfully unlocked the door and led us in.
In other words, if what Zheng Jiying said is true, it was Zhou Xinying who secretly opened the passage upstairs and downstairs while the tenant downstairs was not at home; if Zheng Jiying lied, then it would be even more difficult to explain clearly. Besides, there is no need for Zheng Jiying to lie. "
Qiao Xin glanced at Feng Gang and said, "You dare to say this to death. Zheng Jiying's mental state is up and down, and she talks confusingly. People don't know which of her words are true and which are false."
"Did you ask the out-of-town businessman or landlord if there were any mistakes in key management?"
Ye Anjin asked.
"No. The two were interrogated separately, and they said the same thing. The door lock was changed with the landlord's consent after the out-of-town businessman rented it. There were four keys in a set, all of which were in the hands of the out-of-town businessman. He also gave them to We looked and he said the key was never given to anyone."
Feng Gang answered fluently.
Everyone investigated the case meticulously and carefully.
Ye Anjin roughly understood what was going on.
After thinking about it, her heart suddenly tightened.
Yesterday, when she returned to Longgang Yuewan, she found someone to change the door locks first. After entering, she locked the security door on the first floor before going to the study on the second floor to look for the roster.
However, Xie Chenfei easily opened the door and entered with a master key.
It wasn't until Xie Chenfei opened the study door that she discovered that the ordinary door lock was useless for the master key.
Could it be that Zhou Xinying also has a master key in her hand?
This is the only reasonable explanation.
However, master keys are not easy to obtain.
Also, how could Zhou Xinying, a girl with both good character and academic skills, take up other people's space when she was not at home downstairs?
Moreover, Feng Gang and Qiao Xin also said just now that when they went to investigate on the spot, the passage was not open and there was a tea cabinet on it.
Normally, the entrance to the corridor between the two floors would not be too small, and the wooden board must be large and thick.
Zhou Xinying couldn't move it alone.
What's more, Zhou Xinying was killed before the board was restored to its original position, so who could have faked the illusion that the board was intact?
Ye Anjin watched the video again.
This time, she was sure that the female student in the video was Li Sisi disguised as Zhou Xinying.
"How are you sure she is Li Sisi?"
Feng Gang and Qiao Xin said in unison.
"I have observed her walking posture. Her chest is hunched over, her steps are small, and her footsteps are light. Also, look here, she is wearing a diamond ring on the ring finger of her left hand, which is reflected under the streetlight."
Ye Anjin enlarged part of the picture.
The surveillance pixels were not high and the picture was blurry, but the outline of the diamond ring and the reflection of the diamond on the ring were relatively clear after magnification.
Feng Gang and Qiao Xin suddenly realized it, and both looked confused.
"Where is Li Sisi going in the middle of the night dressed like this?"
Feng Gang asked.
Ye Anjin didn't answer him, but thought thoughtfully, "At ten forty, that's when Zhou Xinying was killed. Li Sisi was wearing Zhou Xinying's school uniform and wig, and walked out of this apartment dressed as Zhou Xinying. Coming out of the building means that Zhou Xinying has been killed, and the first crime scene should be on the floor downstairs!"
Qiao Xin and Feng Gang looked at each other in confusion, "Isn't it possible? We've gone to see it, and everything has been tidied up..."
"That's even more wrong! Since the out-of-town businessman hasn't been back for a long time, how can the house be so tidy?"
Ye Anjin asked back.
"That's right!" Feng Gang slapped his thigh, "Hurry and report to Captain He!"
After Qiao Xin reported to He Bin, he and Feng Gang rushed to review the scene with two investigators.
It's time for class too.
Ye Anjin had to go to class first and planned to go see Zheng Jiying after class.
Unexpectedly, after class, she called Zheng Jiying's mobile phone and turned it off.
Ye Anjin had a bad feeling.
While she asked the classmates in Zheng Jiying's class to help her find her, she contacted the director of the Political and Education Department to check the surveillance by the guards.
I searched every corner of the college and found nothing.
The security guard did not retrieve any video containing Zheng Jiying's image.
Zheng Jiying, a living person, seems to have evaporated from the world. No one can be seen alive, and no corpse can be seen after death!
Could it be that something happened to Zheng Jiying?
An Jin's spine felt chilly at night, and he was about to call the police when Cheng Yuan ran over panting, "Professor An, no, it's not good, Zheng, Zheng Jiying is trying to burn himself down in the laboratory building at the back!"
