"Look …" Zhao Yu pointed at the names of the victims on the whiteboard and said to Xi Mengna patiently, "When we judge and weigh a young female murder case, whether or not there was any violation is often the most important criterion!
"Let's take this case as an example. Three murders. Two of the victims showed signs of sexual assault. The third victim hasn't been autopsied yet. Her condition is probably the same as the first two.
"Let's think about it from the criminal's point of view. He grabbed the victim, violated her, and then killed her. What does this mean?"
"It means …" Xi Mengna guessed enthusiastically. "It means that the murderer is a man!"
"Yes, anything else?" Zhao Yu asked.
"Also …" Xi Mengna guessed carefully and said, "The murderer has a psychological problem. He was depressed and wanted to use violation and murder to release his emotions …"
"Yes," Zhao Yu continued. "Anything else?"
"Also …" Xi Mengna thought carefully again and said, "The murderer … Mm … Mm …"
Xi Mengna stuttered for a long time, but did not finish a complete sentence.
"Also," Zhao Yu said. "For us, criminal investigation workers, cases where there is a violation are often solved faster!
Because the murderer intended to violate, as long as he violated, he would leave behind solid evidence. Now that technology is so advanced, it's easy for the police to investigate!
"In other words," Zhao Yu pointed at the whiteboard, "if there was no violation in these three cases, it means that the problem is serious, understand?"
"Oh … Is this the detail you were talking about?" Xi Mengna asked, "Since the deceased was violated, won't this case be solved soon?"
"On the contrary," Zhao Yu said. "If it was so easy to solve, the local police wouldn't have waited for me!
"The detail I was talking about is not the violation." Zhao Yu came to the whiteboard and said solemnly, "This case has a detail that I don't want to see!
"It means that this case is very difficult. I, Detective Zhao Yu, may have met another criminal expert!"
"Then …" Xi Mengna asked curiously, "What is the detail you were talking about?"
"The details are …" Zhao Yu finally gave his answer. "Although the victim may have been sexually assaulted, during the autopsy, there was no material related to the murderer. This is something that has never happened before!"
"Wait …" Xi Mengna carefully digested Zhao Yu's words. After a while, she said, "You mean, although the victim was violated, there was no material related to the murderer?
"What substance? Body fluids, hair, and dander tissue and DNA? " Xi Mengna's eyes widened. "Since you can't find these substances, how can you say that the deceased was violated?"
"Yes, this point seems very contradictory!" Zhao Yu said. "I've checked it carefully. Although the autopsy technology in Manchuria is not as good as that in big cities, it's not to the extent of making low-level mistakes.
"The first two victims all showed signs of being violated. Congestion, constriction, and some other blood characteristics can prove it.
"Moreover, this is enough to prove that the deceased was violated when she was alive …"
"But …" Xi Mengna was puzzled. "Wearing … wearing that? Why wasn't there any fluid left? "
"Yes, the autopsy staff detected glycerin and sodium hyaluronate," Zhao Yu said. "These are all components of lubricant …"
"Oh …" Xi Mengna said. "So … Was the violation carried out with a condom on?"
"But …" Zhao Yu said. "Even if a condom was worn, there should be some hair or dander tissue left. However, the forensic doctor carefully examined the body, but found nothing.
"They suspect that the murderer made careful preparations before and after the crime …" Zhao Yu said.
"Careful preparations?" Xi Mengna asked curiously. "What kind of preparations?"
"He prepared the victim's skin in advance," Zhao Yu said. "After that, he gave the victim a thorough cleaning …" Zhao Yu said.
"Or …" Zhao Yu said. "He didn't really have physical contact with the victim, but used some kind of tool or item to deliberately interfere with us …"
"Oh …" Xi Mengna nodded and said, "So careful … It seems that you have really met your match!"
"Not only that," Zhao Yu said. "This person is very familiar with the environment in Manchuria. Take the first two cases for example. If he really arrived at the crime scene by riding a sleigh, then he should have left some traces in several places where there were cameras and surveillance cameras!"
"But, Captain Qiu has sent people to check several times, but they found nothing …"
"Also," Zhao Yu said. "There was no suspicious material found on the expansion pipe, the hook, or the rope. This person is definitely not easy to deal with!"
"Yes …" Xi Mengna swallowed hard. She thought about it carefully, then said, "This case is really more complicated than I thought!
If my previous guess is right, and the murderer didn't want to see them live in Manchuria, then could it be that these victims were randomly chosen by the murderer? "
"Yes, that's exactly what I'm worried about." Zhao Yu nodded and said, "If the murderer doesn't have a close relationship with the victims and chose them randomly, then this case will only be more difficult!
I'm afraid that I will have to impose a citywide curfew … But, a citywide curfew will not solve the root of the problem. If we can't catch this criminal, he will definitely strike again. Maybe the next time he will not be in Manchuria … "
"Oh my God …" Xi Mengna said. "I can't believe there is such a murderer … Why did he do this? Did this person suffer some kind of trauma? "
"So, I'm more interested in your conjecture," Zhao Yu said. "You see … If the murderer had committed a crime and killed someone, it would have been hard for anyone to find him if he had simply buried the body somewhere and hidden it in the cold and snowy land!
"But, the murderer didn't care about the cold weather and insisted on carrying the body to a remote bridge. He even hung the victim up and didn't give her any clothes to wear. What does this mean?"
"It means …" Xi Mengna said with fear. "It means that the murderer not only wanted to kill the victim, but also wanted to humiliate the victim. It's like some kind of ritual in a feudal society. Not only did he want to kill, but he also wanted to destroy the heart …"
"This case …" Zhao Yu said. "From the very beginning, I smelled hatred!
"For the investigation, this means two extremes," Zhao Yu said. "If the murderer's hatred comes from these victims, then we should be able to find him soon!
But, if the murderer is just angry at others because of a personal injury, then it will be troublesome … "
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