There were two crime scenes in Cheng Yi's case. One was where he was attacked, and the other was where he was dismembered.
Su Yang did not know much about the first victim, but there were two crime scenes in her case file.
One was an attack, and the other was dismemberment.
The murderer's habit was to commit crimes late at night. He did not like to dismember the murderer in the place where he attacked people.
In other words, when he planned the crime, although the target was randomly selected, he had already chosen the crime location before he chose the target.
The murderer had already chosen all his targets and locations.
The first one happened in Nanjiang District, and the second one happened in the suburbs of Beijing. Where would the next one be? A new zone, or would it still happen in these two zones?
Su Yang and Jiang Rou took Zhang Xing's car and arrived at the crime scene.
It was not easy to investigate the scene of the attack. After all, it was on the road. The cars that came and went had been crushed countless times, so there was not much value to investigate.
He walked all the way into the dense forest, and along the way, he could see the drag marks from back then.
The bloodstains on the leaves were especially shocking.
"Judging from the drag marks, Professor Cheng Yi should have been dragged by his hair.”Jiang Rou checked the traces and replied.
"His head has already suffered a heavy blow, but he's still dragging his hair. The blood in this murderer's body really doesn't have any temperature at all.”Zhang Xing sighed.
Su Yang bent down to check along the dragged road. Zhang Xing had been here once, and the police had also conducted a thorough search.
Therefore, they did not find anything special in this search.
When they arrived at the crime scene, the dried blood on the ground gave off a gloomy feeling even in broad daylight.
The ground was already very clean, but there were still some pieces of meat that had fallen off when the knife slashed at the body.
Su Yang looked around for a while, then stood in a spot and said,""From the footprints on the ground, the murderer was standing where I was. The traces of blood showed that Professor Cheng Yi was lying in front of him. However, there were some traces of friction. Professor Cheng Yi must have struggled at that time.”
"However, according to the feedback from the mall, Professor Cheng Yi left at around 11 p. m. It took her about twenty minutes to reach the scene of the attack, which meant that she was attacked before twelve o'clock. It would only take us a few minutes to reach this place. However, the murderer only killed Professor Cheng Yi after 12:30 pm. What did the murderer do during this period of time?”
There was more than half an hour of blank time in between, which undoubtedly piqued Su Yang's interest.
"Could the murderer have been communicating with Professor Cheng Yi?”Zhang Xing asked.
Su Yang did not reply and continued to walk around the scene. In the end, he squatted down at a place where there were many footprints. When he saw that there was a square-shaped compression mark in front of the pair of footprints, he said,"It shouldn't be a conversation. Even if the murderer and the victim communicated, they wouldn't have talked for so long. At that time, he was sharpening his knife. This square mark was undoubtedly a whetstone.”
Jiang Rou and Zhang Xing's bodies stiffened slightly. Cheng Yi should have woken up at that time. Even if he wasn't very awake, she had struggled.
Perhaps her struggle was because she saw the murderer sharpening his knife.
Just imagine, when he had completely lost the ability to resist, he had no choice but to watch the person who wanted to kill him sharpen his knife. Even if Su Yang and the other two were not the victims, they could clearly feel the fear in the hearts of the victims.
"He's very good at creating fear. There's a square-shaped object on the edge of the whetstone. Judging from the pressure marks, that object should be very heavy. However, there was no evidence left at the scene, which meant that the murderer had brought something with him. However, what could it be?”
"Hmm, I got it. Could it be an equipment that holds knives and whetstones? But how much did he have to put in order to have such a heavy compression mark?”Su Yang muttered, then looked up at Zhang Xing and asked,"I remember that the dismemberment scene of the first case was carried out in an abandoned factory, right?”
"Yes, that place is also relatively remote. The two victims actually had something in common. They had been single mothers for three to five years, and they lived in remote areas that were not under surveillance.”
Su Yang nodded." This is what the murderer was wary of. He was also afraid of the surveillance cameras and was afraid that he would be discovered! His arrogance concealed his guilty conscience. From this point, it could be deduced that the murderer was very familiar with the entire capital city. He had lived in Beijing for at least ten years, so he was most likely a local. In addition, I suddenly feel that the murderer's seemingly crude but actually very covert crime behavior is related to the city's surveillance system. Otherwise, how could he find a non-surveillance area in such a remote place?”
"After all, Professor Cheng Yi's Ten Kills hasn't been on the market for long. It's only been a month, so it's unlikely that a serial murder case would be created in such a short time. After all, he had to choose his target, his location, and even his tools. What kind of tools were used to kill someone, such as Cheng Yi's butcher knife or the axe of the first victim!”
Su Yang seemed to be immersed in the world of reasoning. Jiang Rou and Zhang Xing were dumbfounded when they heard this. In the end, they shouted in unison,"The murderer is very likely to be someone who works in the video surveillance center!”
Su Yang snapped his fingers and said,""Very likely. At least he has been doing this kind of work for the past two years. Moreover, he had worked in a large video surveillance center and a multi-regional surveillance center. However, to be able to remember the locations of these places, he might be an outstanding talent in the industry!”
"Amazing, Young Master Su. This guess has swept away half of the fog surrounding the case!”Zhang Xing exclaimed in surprise.
Jiang Rou shot him a disdainful look and said,"The team leader is a detective, not the captain of the criminal investigation team. His analysis is naturally perfect.”
Su Yang was not as optimistic as them. He smiled bitterly and said,""My guess isn't based on much evidence. Besides, this is a very taxing task for the human brain, and it should be something very few people can do. However, it could be used as an investigation direction. This matter had to be handed over to Captain Zhang.”
"When I get back later, I'll visit all the video surveillance centers in Beijing!”
Su Yang nodded and looked at the marks left by the heavy instrument again. As he looked, he muttered,"This must be at least a few dozen kilograms of equipment to be able to squeeze to such a degree, right? When a person was killing someone, he was still carrying dozens of kilograms of things. Captain Zhang, can you do it?”
Zhang Xing didn't quite understand what Su Yang meant, but before he could say anything, Su Yang stood up and said,""Let's go to the scene of the attack and do an experiment. I want to test how strong the murderer's personal ability is!”
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