Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

"Captain Lu, we found some strange marks on the cage." Yang Sen shouted. Lu Chuan immediately walked over and saw some recent marks on the edge of the cage, which looked like they were scratched by a sharp object. "Take a photo of these marks and analyze what caused them," Lu Chuan said.

At this time, Zhang Hui said, "Captain Lu, I think we still need to investigate the situation of this reservoir to see if anyone has seen any suspicious vehicles or people nearby recently. This iron cage is so heavy, the murderer must have used a vehicle to transport it here and sank it into the water." Lu Chuan nodded in agreement, "You are right, Zhang Hui. You and Wang Shuai go visit the surrounding area and ask nearby residents, fishermen, and staff guarding the reservoir to see if you can find any useful clues. Be careful when asking questions, as any small detail may be the key to solving the case."

After receiving the order, Zhang Hui and Wang Shuai began to investigate the surrounding area. They first found Lao Li, who was guarding the reservoir. Lao Li was a simple middle-aged man who had been guarding the reservoir for some years.

Zhang Hui stepped forward and said politely, "Master Li, hello. I would like to ask if you have seen any suspicious people or vehicles near the reservoir recently?" Old Li scratched his head, thought for a while and said, "Suspicious people... Let me think. A few days ago, there was a black van parked nearby for a long time. I went over to take a look and asked them what they were doing. The people in the car said they were looking for something nearby, but they didn't say what they were looking for. The car looked a little dirty, and the license plate was partially covered with mud. I thought it was a bit strange, but I didn't pay much attention to it." Zhang Hui's eyes lit up and he asked quickly, "Do you remember when the car came? How many people were in the car?" Old Li recalled and said, "About four days ago. There seemed to be two people in the car. They were both wearing hats and masks, and their faces could not be seen clearly." After Zhang Hui recorded this information in detail, he and Wang Shuai continued to visit other residents and fishermen, but did not get any more valuable clues.

While Zhang Hui and Wang Shuai were visiting relevant personnel, the on-site inspection work continued to proceed in depth.

Yang Lin and Yang Sen squatted beside the iron cage, concentrating on the investigation. The air around them was filled with the stench of rotting corpses, mixed with the unique water vapor of Beishan Reservoir, which made people want to vomit, but they had long been accustomed to it and devoted themselves to the work of finding clues.

The smell of corpses is different from ordinary odors. When you smell this smell of a living person, you will subconsciously feel horrible and disgusting. This is a stress response of the human body and is also a response engraved in the genetic information.

Smelling this smell means that a member of the same species has died nearby, and the animal will subconsciously leave.

So whether it was Yang Sen, Yang Lin, Lu Chuan, or many other criminal police officers at the crime scene, they had seen this kind of rotten and seriously decomposed corpses countless times, but when they smelled this kind of corpse stench, they still felt very uncomfortable and nauseous.

Yang Lin carefully took out the tweezers and picked up a small ball of fiber from the gap of the iron cage. The fiber was grayish white, rough in texture, and had a slight luster in the sun. "Yang Sen, look at this fiber. It doesn't look like it's from ordinary clothes. Judging from the color and texture, it may be from industrial cloth or woven bags." He gently put the fiber into the evidence bag, looked at it carefully against the light, and then wrote the place and time of discovery on the evidence bag with a marker.

While examining the surface of the cage with a magnifying glass, Yang Sen responded, "Indeed, this fiber is very special. We have to take it back for a component analysis to see if we can determine its specific material and source. There are also some plastic fragments on the cage, which look like some kind of high-strength plastic, perhaps used to fix the body or seal the cage." He picked up the plastic fragments with tweezers and put them into another evidence bag, his movements gentle and precise, for fear of missing any details. A colleague watching their operation asked, "Will these fibers and plastics help find the murderer?"

After thinking for a moment, Yang Lin replied: "These fibers and plastic debris are important physical evidence. If we can determine the material and source of the fibers, we can follow this clue, such as investigating related factories and warehouses to see if this material has been lost or used. The same is true for plastic debris. By analyzing its composition and production process, we may be able to find the manufacturer and narrow the scope of the investigation."

Yang Sen then added: "Moreover, there may be some connection between these physical evidences. For example, if the fibers and plastics come from the same place, it means that the tools or materials used by the murderer in the crime have a specific source, which is very important for us to solve the case."

Lu Chuan came over at this time and looked at their findings: "Okay, continue to investigate carefully and don't miss any clues."

At this time, forensic doctor Zhang Kai was also conducting a preliminary examination of the body. Wearing a mask and gloves, he observed every detail of the body with a focused look. Because the body had been immersed in water for a long time, the skin had a whitish color of rotten meat, and some tissues had begun to liquefy, emitting a disgusting smell.

Zhang Kai gently turned the body over and checked its back and limbs. "Based on the degree of decay of the body, the preliminary judgment is that the time of death is about one month. There is an obvious network of putrefied veins on the body, which is a feature that begins to appear 2-4 weeks after death, and the liver also has a corpse green, which usually begins to appear 5-7 days after death. Combined with the water temperature, water quality and other environmental factors of the reservoir, the comprehensive judgment is that the time of death is about one month. However, the specific time needs to wait until after the autopsy and through more accurate tests to confirm." He explained to Lu Chuan while checking.

Lu Chuan frowned and asked, "What about the cause of death? Can you find any clues now?"

Zhang Kai shook his head: "The cause of death cannot be determined yet. The body is highly decomposed, and many wounds and marks have been destroyed. However, I found a mark on the head that looks like a blunt force trauma, but because it is decomposed, I cannot be sure that this is the fatal injury. Only after the autopsy, to check whether the skull is fractured, whether there is bleeding in the brain, etc., can we give a specific conclusion."

Yang Lin and Yang Sen made a new discovery while investigating the cage. Yang Sen pointed to the bottom of the cage and said, "Captain Lu, there are some strange marks here, like they were left by some kind of tool. It looks like some sharp tool was used to scratch or pry the bottom of the cage." (End of this chapter)