Tao Lu arrived a little later. He walked in with a sullen face. Seeing that Huang Qiangmin and Jiang Yuan had already arrived, he nodded and explained: "There is a traffic jam on the road. Did you notice it?"
Huang Qiangmin shook his head slightly and said, "Jiang Yuan is watching."
Jiang Yuan raised his head and said: "Most of the evidence has been collected through previous trace inspections, including fingerprints, DNA evidence, footprints, etc. There is nothing comparable at the moment."
This kind of case is also the most common type in criminal police work. There are actually very few cases with no evidence at all, especially murder cases, because there are enough forces mobilized from all sides, and it is inevitable to get a lot of information. If the murderer wants to find out in this case,
It's also very difficult to be invisible.
Even if it is invisible, it is not easy to use, just like the burglary case that the technical detectives just did. Find the owner of a mobile phone that turns off the phone at 10 o'clock in the evening and turns it on at four o'clock in the morning, and ask you to bring the phone with you at this time.
What do you do when you enter an unfamiliar area and turn off your phone at the same time?
On the contrary, in this case, where evidence is left but there is no information in the police database, it is more troublesome.
If it is a case committed by a related person, the case may be solved by following the victim's network. It is just an ordinary premeditated murder case. It cannot be said to be easy to solve, but it is ordinary. Most of them
The case of premeditated murder is at this level.
Many people never got full marks in the exam when they were in school. They never reached the high ground of IQ from childhood to adulthood. They had to take the test several times to get a scrap civil servant position. They stood in front of a group of middle-level people in the interview and could not answer fluently, let alone know.
What is wit? When it's time to kill someone, I suddenly feel that I have no plan left and can fight against the entire system. I can single-handedly crush the IQ of hundreds of people, fight against professional equipment and software worth tens of millions, and make countless people who have been immersed in this for many years
Elite veterans failed here and reflected that their careers were ruined here.
——It has the same meaning as people who speculate in stocks think they can make money.
Of course, there are always those who are lucky and get things wrong.
For example, now, the DNA is not matched, the fingerprints are not matched, the murderer's is not matched, and the deceased's is not matched either.
When it was proved that the murderer might indeed have been caught accidentally and luckily, Cui Qishan called Jiang Yuan.
After Jiang Yuan said a few words to Tao Lu, he squatted on the ground again and looked at the footprints.
If the fingerprint comparison fails, it means the comparison fails. If the fingerprint is missing, there is still a chance for technology to make up for it, but if it is not found in the database, then it is not within the scope of criminal technology.
The situation with DNA and the like is similar.
In comparison, the information given by footprints is more complicated. Of course, it also has higher requirements for criminal department personnel. To be able to read extraordinary level of footprint information, you have to be above LV2, or even LV3.
OK.
Tao Lu had no technical background. Seeing that Jiang Yuan was busy and serious, he raised his head and asked Cui Qishan, "Have you found the head?"
In the case of dismemberment, what the forensic doctor needs most is the pelvis, and what the criminal police are most concerned about is the skull. The skull is very hard, and it is difficult to break it in a normal family environment, and it is also difficult to break it if it is broken.
Just like a coconut, which is not as hard as a human head, it would be very troublesome to break the coconut shell, let alone the skull.
Theoretically, if you use enough force to grab the ground, the tiles should break first, given people's current family conditions.
Therefore, when an ordinary person dismembers a corpse, the skull cannot be broken, and the human skull is so big that it is difficult to transport it without leaving traces. Therefore, criminal policemen like to look for the head when watching surveillance and the like.
Cui Qishan was naturally looking for too much. Now he said with a cold face: "The head was boiled in the big pot. The murderer should have divided the body first, and then boiled the body in the big pot. After boiling it in a pot, he took it out.
I threw it on the ground, and then I guess I found that it was cooking very slowly, so I used a steamer and started steaming it again."
"The body parts that were recovered were taken away? The head was also taken away. What's going on?"
"The head is still in the pot."
Tao Lu was surprised: "Why don't you fish it out?"
"It has been boiled and the bones have been removed. Now take it out and the bones will be separated and stay in the pot. They can still maintain their appearance. Let's see if Captain Jiang can do anything." Cui Qishan then added: "The murderer should be boiling the head.
I left it when it was halfway through cooking. The head was cooked by the fire at the back, and it was soaked for a while before it was soaked to this level..."
"Hey... Got it." Tao Lu's face twisted when he heard this. He probably won't be able to eat pork head meat in the next few months.
Cui Qishan then reported: "We estimate that the murderer killed someone in the yard, and the murder weapon was most likely an ax for chopping firewood. The dismemberment of the body may also have been done with kitchen utensils such as axes and kitchen knives. After the murderer dismembered the body, he cooked two pots of
The body parts weigh about twenty kilograms per pot, and there are three cages in the basket, and each drawer may weigh more than ten kilograms..."
Cui Qishan "There are still some uncooked corpses left. Mainly there are slash marks on the two legs, but they are not split. It is estimated that the murderer is not very strong."
"Maybe that's why the body was dismembered." Huang Qiangmin interjected: "Looking at it this way, there is a possibility of killing with passion."
"It is indeed possible. The location of the murder is not very good. The neighbors here are relatively close, there are many old neighbors, and the houses between families are relatively close. The conditions for dismembering the body are not very good. The axe
There were slag everywhere and blood was all over the ground, but I didn't even know how to prepare power tools in advance." Cui Qishan analyzed step by step.
"It looks like he has little experience in killing people. He doesn't know how to dismember a body, and he doesn't have much experience in the kitchen." Huang Qiangmin agreed.
Cui Qishan continued: "Speaking of which, there is actually no need to cook the corpse. It is just a matter of taking off your pants and farting. Look at the minced meat on the floor and wall. If you pick up any trace of it, you will find DNA. Now it is not possible to compare because there is no database.
, the murderer obviously didn’t know this.”
"The murderer's idea is probably to stew the body in a pot. After cooking, clean the scene again. He didn't have time to finish it." Tao Lu guessed: "The yard has been completely cleaned. If the neighbors don't
Call the police and wait for the owner to come back. Whether it is selling or living in, we will face the problem of decoration next, maybe the traces can be really eliminated."
Several people were standing in the yard, near the kitchen, communicating, while police officers came and went around them.
While each expressed his or her thoughts, Tao Lu already felt a headache.
Every difficult case has its own difficulties, and this case is about to reach a deadlock again.
"Is the intersection fully monitored? How about the number of people coming and going?" Tao Lu asked with a little hope. If the monitoring is comprehensive and there are not many people coming and going, in theory, everyone can be pulled out and sneak away.
Although it is almost impossible in practice, there is still a way to find the direction through monitoring.
Cui Qishan shook his head slightly: "It's basically all covered, but there are some places that are not covered..."
"Well..." Tao Lu thought for a while, took a deep breath, and said: "In this case, we have to analyze it from the beginning. If the source of the body cannot be directly confirmed, where did the body come from? The murderer transported the person here.
, or I got it by cheating..."
"Let's look for it." Cui Qishan is not very optimistic about this direction, because he has really seen the surveillance. There are too many surveillance blind spots in the alley, which is basically a matter of luck. But if you look at the ones outside the alley, the number is mostly
Already.
"Team Cui!"
Jiang Yuan shouted in the kitchen.
"Here we come." Cui Qishan hurried over.
"Cui Da, please collect all the shoe prints of the people who entered the yard and passed the kitchen today. I want to eliminate them." Jiang Yuan was still squatting on the ground and looking at the footprints.
This is a normal request. Cui Qishan immediately arranged for personnel to collect, and then asked: "Have you found anything?"
"It depends on the condition of everyone's shoe prints," Jiang Yuandao said.
This is not to show off, but a wrong judgment will be too troublesome and affect the direction of the entire investigation.
Fortunately, there was no need to wait long. Cui Qishan gave an order, and the policemen who participated in the battle quickly expanded the soles of their shoes and gathered the electronic ones first.
Jiang Yuan looked at them one by one. After reading them, he squatted on the ground and took another look, saying, "What can I see here?"
Cui Qishan immediately took out his notebook and took notes.
"First, there should be two suspects. One male and one female."
"The male is about 20 years old, and the female may be a little older, 21 years old, no more than 22 years old."
"The male suspect is 173 centimeters tall and has a standard build. The female suspect is 165 centimeters tall and 50 kilograms."
"The two suspects were very close, and the contact distance was very short. They may have hugged each other."
After saying this, Jiang Yuan stood up and said: "As for the time of death, it was mid-afternoon yesterday, around 2 o'clock in the afternoon."
"Understood, I'll go talk to the detective." Cui Qishan closed the notebook with a snap. Not to mention the time of death, the two suspects would have hugged each other. If they appeared under surveillance, it would be very obvious.
, much easier to screen than height and weight alone.
