Serious Crime Unit 1

Chapter 1260 Devil and Angel (9)
"I killed someone? How is that possible? I said I was taking online classes at home at that time. Don't accuse good people unfairly. I have never been to Shanqian Park and I don't know where it is." He looked at Jiang Yiming resentfully.

"It's useless for you to talk to yourself. The only way to clear your suspicion is to compare your DNA with the suspect's DNA. If they don't match, we can rule out your suspicion. If you don't cooperate, we have We have the right to summon you to the Municipal Bureau’s Criminal Police Team to explain clearly, or to detain you.” Jiang Yiming said sternly.

"Okay, I'm willing to cooperate with you."

Zhou Ting stood up and used a cotton swab to extract Xie Feng's saliva. Then they went to the community's monitoring room to retrieve the surveillance video from the time of the crime. In order to speed up the case, Zhou Ting copied the surveillance video to a USB flash drive and brought it back to the team. Check with the detective team.

They asked Xie Feng to walk twice in the living room. Xie Feng did not dare to say anything, so he walked back and forth in the living room twice. Jiang Yiming took out his mobile phone and took pictures of his walking.Then I went to check all his rooms and found that the windows and doors of his house were sealed with anti-theft nets, and the living room door was the only entrance and exit.

Luo Jin handed Xie Feng's saliva to Luo Jin for processing, while Jiang Yiming handed the surveillance video to Lu Yingying, telling her to start checking it immediately and send Xie Feng's photos to Lu Yingying.Then, Jiang Yiming sent the video of Xie Feng walking to Wu Jiang's computer and asked him to analyze Xie Feng's gait to see if he could match it with the suspect.

All the data about Xie Feng came out in the afternoon.Luo Jin said Xie Feng’s DNA was 100% identical to the DNA of the suspect’s semen.The similarity rate of people's DNA between childhood and old age is as high as 99.99% and will hardly change. It can be determined that Xie Feng is the murderer of Jin Xiaosu.

但是，视侦组的结果却和罗进的结果相反，黛山小区602房门前的监控录像显示：谢风于8月4日傍晚18:18进入602房之后，直到8月5日08:12才走出602房。这让江一明百思不得其解。

"Yingying, will Xie Feng replace the hard drive that stores the surveillance video in the community like Hua Baifang did?" Jiang Yiming asked Lu Yingying.

"It's impossible. I've checked the surveillance system of Daishan Community. Their surveillance videos are saved on the server and the cloud. It's double insurance. Even if Xie Feng can replace the hard drive on the server, he can't save the surveillance footage on the cloud. The video has been replaced. Because only the administrator can replace the surveillance video on the cloud, and accessing the cloud disk requires a complex password, which Xie Feng cannot do with his ability," she said with certainty.

"Xie Feng must have used some trick to avoid the surveillance video?"

"I have the same idea. Have you and Zhou Ting carefully checked that there is no escape window in Xie Feng's house?" she asked doubtfully.

"After checking, 602 is a secret room. The only entrance and exit is the door of the living room. Anyone who enters or exits must pass through the monitor in front of room 602."

At this time Wu Jiang walked in and said to Jiang Yiming: "Xie Feng's gait is 80% similar to the suspect's gait. It cannot be confirmed that he is a suspect. To confirm that he is a suspect, the gait similarity must be as high as above 95."

"What method did you use as the standard for Xie Feng's gait?" "We used the gait of the shoe prints left by the suspect when he left the scene as a sample, because the suspect dragged Jin Xiaosu into the reeds, and gravity caused his The gait is altered so it cannot be used as a sample."

"Did Xie Feng deliberately distort his gait when leaving the scene to interfere with our investigation?" Jiang Yiming asked.

"It is possible that if he walked for a long time, he would not be able to distort his gait. However, the suspect returned from the reeds to the main road only 60 meters, and the suspect only left shoe prints within the first 10 meters, and other shoe prints It’s all been washed away by the rain, so it’s impossible to tell.”

"What do you think?" Jiang Yiming and the three people present were Luo Jin, Wu Jiang and Lu Yingying.

"Unless it's the same person, there are no two people in the world with 100% identical DNA. Even the similarity rate of identical twin brothers' DNA can only reach 99.99%. Therefore, there is no doubt that the murderer is Xie Feng. It's just that he used a trick and deceived Surveillance video, or escape from the hidden exit of his home to the scene to commit crimes." Luo Jin said.

"I also think it was Xie Feng who did it. He should have deliberately changed his gait to cause interference to us..." While they were talking, Wen Xiaorou walked in.

She walked up to Jiang Yiming and said: "We found Xie Feng in the traffic surveillance video of Shanqian Park. He entered the park at 8:4 on August 20 and then walked out of Shanqian Park at 15:23. Although he did He had to disguise himself, but I used technical means to restore his appearance. Look -" Wen Xiaorou opened her laptop to play the surveillance video.

Wu Jiang also stepped forward to take a look. After they watched the two surveillance videos, Wu Jiang said: "The suspect on the surveillance video has exactly the same gait as Xie Feng. We can apply to arrest him, and we also have a search warrant."

Jiang Yiming nodded and went to Fang Lihua's office to apply for a search warrant and a detention warrant.After listening to Jiang Yiming's report, Fang Lihua thought for a moment, then took out the search warrant and detention warrant from the drawer, wrote Xie Feng's name on them, and handed them to Jiang Yiming.

Jiang Yiming brought Wu Jiang, Xiao Ke and Zhou Ting to Xie Feng's home. After Xie Feng saw the search warrant and detention warrant, his expression changed: "Why did you arrest me?"

"Follow us to the Municipal Bureau's Criminal Police Team first, and we will show you the evidence. We'll talk about anything else at the Criminal Police Team." Jiang Yiming stared at him hard and told him to shut up.Jiang Yiming was very angry. The man he had rescued from hell by Lin Ke and the doctor dared to rape and kill Jin Xiaosu, who was as kind as an angel. At the same time, he brought shadow and regret to Lin Ke. He regretted that he had donated bone marrow and hematopoietic stem cells to the murderous devil. !
After careful search, Wu Jiang discovered that the balcony in Xie Feng's living room was actually electric.When it is opened, the glass window will extend outward and become a balcony. When it is closed, the balcony will become a glass wall. People who are not familiar with it cannot tell at all. When Wu Jiang used the remote control to open the glass wall, Xie Feng completely withered.

In the face of a large amount of evidence, Xie Feng finally admitted that he killed Jin Xiaosu.

(End of this chapter)