"It's not really on the scene yet, so it's still inconclusive.
Yuan Youchong shook his head lightly and said, "Old Yu, I have to remind you again, the current case is all deduced by force, and everything may be overturned before the murderer is captured and the suspect is found." ” "I know, I know."
Yu Chen smiled bitterly and shook his head, asked Zhou Qianxin and Cheng Wei for their opinions, and asked, "Can we enter the scene now?"
Cheng Wei cautiously glanced around, and after making sure that there was nothing missing, he nodded, raised his legs and stepped into the staircase corridor leading to the basement.
Immediately afterward, the rest of the people followed.
At the same time, Ji Hongchang also took out a flashlight and said: "The basement is in disrepair, the lighting equipment is broken, and I can only use a flashlight for lighting." ” "Uh-huh."
Yuan Youchong raised his sword eyebrows: "If even the lighting environment has been taken into account by the murderer, then the murderer in this case can be called terrifying." ” "yes."
Yu Chen thought so: "In the words that often appear in costume dramas and martial arts novels, killing people is not too much, and it is too much to use this kind of torture to deal with the victim, not to mention the deliberate increase in the psychological pressure of the victim."
In this dimly lit environment, the fear of the victims is bound to skyrocket. ” Ji Hongchang couldn't help but say: "If there is no deep hatred between the murderer and the deceased, it can only mean that the murderer's psychology has been completely distorted and he has become a complete perverted killer." ” "Yes."
Yuan Youchong agreed, and said, "Old Yu, you just asked me, about the question of motivation, I can probably answer you." ” "You only consider that She Siwen has a legitimate and stable income, but you forget that Mei Jiechao has always been in a state similar to being fostered, and is often pointed at by his neighbors.
In this environment, it is likely that his psychology will be distorted."
Yu Chen didn't want to listen to his cracks anymore, waved his hand and said, "Okay, don't talk about it yet, let's investigate the scene first." ” Yuan Youchong was stunned for a moment, and then nodded slightly.
Soon, the five of them came to the basement.
Cheng Wei and Zhou Qianxin worked together, Cheng Wei did trace inspection and physical evidence collection, and Zhou Qianxin did the examination and analysis of biological evidence, such as blood stains, that is, forensic physical evidence and forensic scene related work.
The string in their hearts was tight, and as a result, the inspection was very fast.
According to the principle of forensic scene investigation from near to far, from the center to the periphery, Zhou Qianxin first came to the center of the basement, where there were several piles of bloodstains, and it was obvious that the deceased was dismembered and killed here.
She found that there were seven steel rings on the ground in this area, and the position and distance between the steel rings corresponded to the limbs, the head, and the sides of the waist.
Squatting down to take a closer look, she noticed that the paint on the steel ring was worn out quite badly.
Presumably, the murderer used the hemp ropes in the corners to tie the victim's limbs, neck and waist, and at the same time fixed on these seven rings, and the victim struggled with fear and severe pain, so that the hemp rope wore off a layer of paint on the surface of the steel ring.
After reporting the results to Yu Chen and Yuan Youchong, the focus of her inspection began to spread around, and after photographing and numbering these blood stains one by one, she picked up the hemp rope in the corner and swept it around, there were a few blood marks and dander on the hemp rope, which should have been left by the victim when he was struggling.
"Huh" After a while, Zhou Qianxin made another important discovery, she picked up one of the murder weapons, that is, one of the bone chopping knives, and a circle of linen cloth was wrapped around the handle.
After careful observation for a while, he took out a bottle of normal saline from the forensic investigation box, dipped the cotton ball in it and gently wiped it on the handle of the knife, then threw the cotton ball into a small test tube, poured in some of the rapid normal saline, and then closed the lid of the test tube.
Yuan Youchong immediately asked, "Did you find any evidence?"
"Hmm."
Zhou Qianxin nodded, took a few more photos of the murder weapon, and said: "This bone chopping knife has a layer of linen wrapped around the handle, which may be used to protect against cold and slip, and it can also effectively avoid leaving fingerprints and other evidence." ” "However, it's also the murderer's secret, the linen cloth is too rough, and the strength required to break the corpse is extremely great, it is likely to scratch the murderer's palm.
So, I found a little bit of dander on it, which is important biological evidence. ” With that, she put both bone chopping knives into the evidence bag, put away the internal organs piled up in the corner, and then stood up and said, "I'm done." ” Cheng Wei also walked back, shook his head and said: "No fingerprints and other traces were found at the scene, and there were no signs of fighting, indicating that after the murderer hijacked the victim to the basement, he directly controlled it, and then when the victim woke up, he may have killed directly." ” Yuan Youchong nodded and looked at Zhou Qianxin: "What about you?"
She opened her notebook and repeated the situation that had just been roughly reported in detail, and then concluded: "Judging from the distribution of the blood stains at the scene and the degree of coagulation, a total of two people were killed here, and there are exactly two sets of internal organs in the corner, which is comparable to the murder of Ban Yingying and Qiu Yuefei." ” Yuan Youchong just wanted to reach out and pinch his chin, but suddenly thought that he was wearing gloves, and hurriedly put down his half-stretched hand, and then said: "In this way, the direction of our previous investigation was not wrong, these two murders were indeed committed by the same person or the same group of people, and they fully meet the conditions for joint investigation." ” "I said Detective Yuan, don't talk about this" Yu Chen shook his head helplessly, and looked at Zhou Qianxin and Cheng Wei again: "Can you determine who the murderer is?"
"Yes, but it will take time."
Zhou Qianxin said: "The dander on the handle of the murder weapon still looks very fresh, and it is likely that DNA can be extracted for Tupu drawing." ” "It takes about four hours to map the DNA, and we can't afford to wait."
Yuan Youchong frowned and said, "That's it, Xiao Zhou, you go back to the detachment immediately now, and immediately hand over the obtained biological samples to the genetics laboratory, once the murderer is caught, it will be ironclad evidence." ” "In addition, Lao Cheng, you immediately go to She Siwen's house with the search papers, extract her and Mei Jiechao's biological samples, and send them back to the detachment."
"Okay."
The two nodded at the same time, and without any nonsense, they left side by side.
Seeing this, Ji Hongchang scratched his head and asked, "Team Yu Yuan, then what are we doing now?"
"Is there a street map?"
asked Yuan Youchong solemnly.
Yu Chen opened his mouth: "What, you have to reason hard again, find the next killing place or hiding place chosen by the murderer" "I'm not a roundworm in their stomachs" Yuan Youchong was very irritable, and said impatiently: "Don't talk nonsense, is there a street map?"
"Yes."
Ji Hongchang hurriedly replied.
"Take a copy here" torture and murder :