Serious Crime Unit 1

Chapter 1018 Delaying the Time of Death (7)
"Could it be that there were spots on the pressed parts of Wang Wenbing's body?" Jiang Yiming asked doubtfully.

"You are right, I suspect that the body has been touched, which means someone may have massaged the body for a long time."

"Why do you need to massage the body of the deceased?" Jiang Yiming still didn't understand.

"Because if someone continues to massage the corpse for a long time, it can delay the formation of cadaveric plaques and rigor mortis. We know that human cadaveric plaques usually form two to three hours after death, and then gradually worsen, basically within 24 hours. Stable. If the corpse is turned over within 24 hours, the corpse spots will form again at a new lower position. If the formation of corpse spots and rigor mortis is delayed, it can interfere with our judgment of the time of death, thereby making us mistakenly The purpose of determining the time of death.”

"Are you saying that you misjudged the deceased's time of death?"

"This is just a hypothesis and cannot be completely confirmed because there is no evidence. Unfortunately, nine days have passed since the case was taken away. Rigor mortis has disappeared and the spots on the body have been fixed."

"What a cunning murderer! So, the murderer should be someone who works at the Phoenix Foot Bath Center, right?" Jiang Yiming asked. This was his first time coming into contact with this kind of case.

"This is not necessarily true, because the blood vessels buried deep under the neck muscles of the deceased could not withstand the pressure of the murderer's fingers, and they broke suddenly, leaving large amounts of bleeding between the muscles. The large horns of the hyoid bone also rattled under the gradually increasing pressure. It squeaked, and finally broke suddenly. The blunt end was deeply penetrated into the muscles by the strong elasticity of the tough bone. Even the extremely elastic tracheal cartilage also suffered obvious fractures. The severed end pierced the trachea, causing The bleeding flowed down the inside and accumulated in the lungs. Therefore, the murderer must be a very strong person. This should be a man, and the Phoenix Foot Bath Center only has two security guards and Zhao Minglei and the vice president. If it is a man, They commit crimes and can be easily detected by us, so I guess it’s not them.”

"Yes, Zhao Minglei and Wang Wenbing have no intersection, and the two security guards don't know Wang Wenbing. It is impossible for them to kill Wang Wenbing." Zhou Ting said.

"If the murderer wants to massage the corpse, he must use massage oil, and the composition of massage oil of different brands must be different. If the massage oil on Wang Wenbing's corpse is from the Phoenix Foot Bath Center, then it is most likely from there. If it was done by someone, if the composition of the massage oil is different from that of the massage oil from Phoenix Foot Bath Center, then it could be someone from outside, right?" Jiang Yiming asked Luo Jin.

"Captain Jiang is absolutely right. During the autopsy, I extracted the massage oil from the corpse surface and went back to test it to find out. I'm leaving. I'll go to Phoenix Foot Bath Center to get their massage oil back for testing before doing it. Compare and the results will be out soon." Luo Jin called Xiao Ke and went to Phoenix Foot Bath Center with him.

After the two of them arrived at the Phoenix Foot Bath Center, Luo Jin asked Zhao Minglei: "Manager Zhao, do you purchase the massage oil at the Phoenix Foot Bath Center together?"

"Of course, we have been using Qinghua brand massage oil for the past three years, and we bought it from a fixed store. It is definitely not a fake product."

"Do you usually keep the massage oil together?"

"Yes, after the technicians work, they have to take the massage oil back to the warehouse for unified storage. Qinghua brand massage oil is very expensive. A bottle of 300 ml massage oil costs 198 yuan, which is still the wholesale price. We are worried about being taken away by customers. Let’s go, so after each technician completes his one-hour task, he must return the massage oil to the warehouse. When he needs to use it, he will go to the warehouse to get it.”

"Can you give me an empty bottle of massage oil? We can use it." Luo Jin thought that there would definitely be trace amounts of massage oil left in the empty bottle.

"No problem, I'll get it right away." Zhao Minglei walked out of the office and went to the warehouse to get an empty bottle of Qinghua brand massage oil and handed it to Luo Jin.Luo Jin took it and took a look. There was still some massage oil left at the bottom of the bottle. That was enough. He put the empty bottle into his bag and returned to the team with Xiao Ke.

After testing, Wang Wenbing's massage oil contained 25% emollient oil, 21% vitamin E, 29% olive oil, and 25% pure oil. These are the ingredients of Ambergris massage oil, and Qingqing The content of various ingredients of Hua brand is completely different from that of Ambergris massage oil. Qinghua massage oil has particularly high lavender and juniper berry ingredients. This shows that the suspect brought Ambergris massage oil to the crime scene and used it on the body. Massage for a long time results in lighter and wider distribution of corpse spots.It can be judged that the suspect should be a customer, not an employee of the Phoenix Foot Bath Center.

If the suspect wants to bring Ambergris brand massage oil into the Phoenix Foot Bath Center, then he will definitely have to carry a bag or carry a bag. As long as the customer with the bag is investigated, the suspect can be found.Therefore, Lu Yingying and Wen Xiaorou led the visual investigation team to review the surveillance videos of the three entrances and exits of the Phoenix Foot Bath Center.They identified three suspects from surveillance video.When Jiang Yiming was preparing to investigate these three people, Luo Jin found a tiny piece of skin on Wang Wenbing's body. Luo Jin suspected that it belonged to the suspect, so he took the skin for DNA testing and the result was After he came out, he compared it with Wang Wenbing's DNA, but it was not Wang Wenbing's.It is a man's DNA. Therefore, it can be ruled out that it is the skin flakes left by technician Jiang Xiaoyun on the corpse. Then, this piece of skin flakes is most likely to belong to the suspect. He was accidentally massaging Wang Wenbing's corpse. The skin flakes from the handle stick to it.

After Jiang Yiming learned the news, he was very excited because the case might be solved soon.He and Zhou Ting went to extract the biological samples of the three suspects, gave Luo Jin a DNA test, and then compared them with the suspect's DNA. The results were disappointing. The DNA of the three people did not match. DNA left in dander on corpses.Everyone was very disappointed.It seems that we have to find another way and look for clues again.

Everyone believes that the murderer is among the 27 customers (three of them have been excluded). If biological samples are extracted from all 3 customers and then DNA testing is performed, the murderer should be found, but this is a lot of work. However, when the case reaches a dead end, this is the only stupid way.

Jiang Yiming, Zhou Ting, Wu Jiang, Xiao Ke, Luo Jin, and Wen Xiaorou were divided into three groups to extract biological samples from 3 suspects. The 27 suspects were very cooperative, so the work went smoothly. After the samples were extracted, they were handed over. Conduct DNA testing on Luo Jin and his assistant.

Three days later, all the suspects' DNA came out. Luo Jin compared it with the suspect's DNA, but none of them matched. This result made everyone disappointed and didn't know what the problem was.

Jiang Yiming convened a meeting to discuss and analyze the case and look for clues again.

Wu Jiang believed that the murderer should have sneaked into the Phoenix Foot Bath Center in advance, and then hid in the closet of the Phoenix Foot Bath Center, or under the massage table. He waited until Lin Chao left, then ran out of the closet and strangled Wang Wenbing to death.

After the murderer strangled him to death, he hid in the closet and waited until Yu Ping and Ai Yaner came to work the next day before sneaking out because the cleaning time was from 8 a.m. to 2 p.m. every day, so the murderer could easily escape. Therefore, to watch the surveillance video, you need to start watching it from September 9th until 14:15 in the morning of the 8th.The murderer probably didn't have the guts to hide in the closet after Crime Squad No. 1 arrived.

Jiang Yiming believed that Wu Jiang's analysis was reasonable.If things are as Wu Jiang said, then Lin Chao must be an accomplice, because he is the only one who knows that Wang Wenbing will go to Phoenix Foot Bath Center for a massage at 9:15 on September 00, and it will end at 30:01.After Lin Chao left, the murderer sneaked into Room 30 and killed Wang Wenbing.

江一明叫吕莹莹带领视侦组，对凤凰足浴中心的三处监控录像进行重新查看，已经看过的监控录像就不要看了，主要看9月14日08:00以后到15日00:30的监控录像，还有15日04:30以后的监控录像。

经过视侦组一天的工作，他们终于发现一个穿一套黑色运动服的人很可疑，因为他于14日下午13:13走进凤凰足浴中心之后，一直到15日04:30还没有出来。

It wasn't until 15:08 on the 10th that this person came out of the back door of the Phoenix Foot Bath Center. In other words, he hid in the Phoenix Foot Bath Center for a full 20 hours.This is a young man, about 24 to 26 years old, with a thin build, about 165 centimeters tall, and weighing no more than 55 kilograms. Can such a man strangle Wang Wenbing to death?

Lu Yingying enlarged his face, took a screenshot, and then used FutoSoft software to clear the image. She got better results. She printed 7 pictures of the suspect's face and handed it to Serious Case No. 1. All members of the group.

After Wu Jiang and Xiao Ke got the image, they went to Phoenix Foot Bath Center and called all the technicians to identify the suspect one by one to see who had served him before. As a result, none of the technicians knew him. The suspect was The possibility of the murderer suddenly increased.

Wu Jiang asked Zhao Minglei if all the technicians had come to work?Zhao Minglei said that there are still 12 technicians working the night shift who have not come.Wu Jiang was just about to ask Zhao Minglei to take him and Xiao Ke to the technician's dormitory to identify them. At this time, a technician named Gao Yiyi walked up to Wu Jiang and said, "Officer Wu, I just remembered that he looks like the same person. But, I’m not sure if it’s him.”

"Oh, great, let's go to the office and talk. There are too many people here." Wu Jiang and Xiao Ke brought Gao Yiyi into the office and asked her to sit down and talk.Gao Yiyi is a very beautiful girl, with first-class figure and appearance. Maybe only one girl can be selected among 1 girls. How could there be such a beautiful girl here?
(End of this chapter)