The four corpses were all exposed outdoors. Therefore, there were footprints and traces of varying shades around the crime scene. Some of them were those of the suspect and some of the murderer. In theory, there was also a process of rape or even corpse rape.
traces left in it.
However, due to the decomposition of the corpses, the extremely rapid growth of local vegetation, and the frequent heavy rains and exposure to the sun, these traces have been greatly disturbed.
Just looking at the footprints collected in the four cases, we can roughly judge that only the murderer and the victim were present at the crime scene. However, it is extremely difficult to obtain more clues to the case through positive analysis.
However, conversely, with certain analytical conclusions, it is enough to use these traces to make arguments.
Jiang Yuan watched the previous autopsy videos of the three corpses and gave a definite answer to the second and third corpses: "These two corpses also have traces of being raped."
"Is it only the first corpse that was not raped?" Nicha thought for a moment and said, "Is it the first time when there was no such strong need? Or is it that he didn't know that he had such a need? Or?
Is it a gradual psychological abnormality?"
Malaysia was a former British colony, and the police's deployment, training, and crime-solving models were all copied from the British and re-localized. Therefore, when faced with a serial killer, Nicha immediately conducted criminal psychological analysis.
Jiang Yuan did not put himself in the murderer's shoes, but just raised his head and said: "The first corpse was more rotten, and it is not sure whether it was raped. In addition, it is possible that the raping was unsuccessful.
In this case, it will not be reflected on the corpse."
Nicha suddenly realized: "Yes, it may be the first time to rape a corpse. I'm not very skilled yet. Maybe I won't be able to get in."
"It's also possible that you were too excited and ejaculated early outside. After wiping it down and leaving it outside for another two days, the tissue outside won't be visible anymore." Jacob put forward another point of view.
Nicha, Jiang Yuan and others all looked at Jacob with suspicious expressions. Zhong Renlong's translator paused twice before continuing. Immediately afterwards, the comrades from Ningtai also all said, "The meeting is so disturbing that
Looking suspiciously at Jacob.
Jacob hurriedly said: "Rapists often have problems with premature ejaculation and inability to cum. It is not strange to be too excited and ejaculate early."
"It's very strange that I feel too excited about having sex with a corpse for the first time." Nicha half-joked, then nodded and said: "But there is indeed such a possibility. Well...if we count it this way,
The murderer’s place of residence or work should be at the intersection of the four places where the crime was committed?”
Zhong Renlong added: "We have already investigated this direction."
The two men were talking about the standard police investigation model, which is to draw a circle with the crime scene as the center. If the four large circles intersect in four cases, there is a high probability that it is the suspect's place of residence or work.
This model sounds superficial, but it has been verified many times. Because in many cases, humans are such simple animals, especially serial killers who follow instinct, and this should be the case.
Nicha thought for a moment, then looked at Jiang Yuan, and then asked Zhong Renlong: "Who was sent to investigate at that time?"
In the case of serial rape and murder, the Malaysian police also invested a lot of police force and investigated in many directions.
Zhong Renlong checked his mobile phone and said: "The third group conducted an investigation. They investigated companies within the scope, retrieved information on owners and tenants of local apartment buildings, and also investigated accommodation in local hotels, etc."
"If it's just like this, it's not enough. At least you have to go door to door and ask and investigate." Jiang Yuancai crawled out of the mud pit in Meiyang City. He knew that they could not meet the investigation standards at the moment.
It can only be regarded as visiting level.
But in this kind of case, if you send a dozen or twenty people to visit, hoping to find out through the people and among the people that person who is not a member of the people, the difficulty is too high, and it is also a bit of a matter of luck.
Zhong Renlong smiled bitterly: "Without a search warrant, many people are unwilling to cooperate."
Jiang Yuan had experienced a similar situation in Malaysia before, and he nodded without surprise, pondered for a moment, and said: "Judging from the current situation, the intensity of the search is definitely not enough, but we can look at other things first.
evidence of……"
Several people then finished the autopsy, went to the bathroom to wash themselves, then changed their clothes, and went to the office upstairs together to read other information.
The police had already sorted out the footprints, fingerprints, preliminary investigation reports, etc. Jiang Yuan looked through them one by one and made some identifications of some of the main fingerprints.
Not much gained.
Although Jiang Yuan only spent a few hours on the investigation, the investigation was almost over at this point.
After marking a few scattered fingerprints and comparing them to no avail, Jiang Yuan said decisively: "Next, I suggest that the intersection points around the crime scene be the focus of the investigation."
"Is it the area around the hidden area? Although the delineated range is not large, but... is it strictly implemented according to the delineated range? If it exceeds the range of a few hundred meters, the scope of the investigation will increase a lot." Zhong Renlong raised a reality.
The problem.
For a relatively prosperous neighborhood, if the investigation radius increases by 100 meters, the list of investigators may increase by tens of thousands, which is a big challenge for the police force of any city.
So, what if the radius does not increase? Should we strictly follow the results of the paper drawing to delineate the range?
From a normal perspective, everyone is always a bit fluctuating in what they do. Serial killers may not be so accurate and uniform in what they do. So how much should the radius be increased?
Jiang Yuan had done many scenes with Xu Taining, and he didn't verbose so much at this time. He simply followed the method he learned from Xu Taining and said: "Just follow the designated range strictly and don't go beyond the range. If you can't find it,
We will expand further. But within the defined scope, we must carefully investigate, can this be achieved?"
This is Xu Taining's idea. If you want to investigate, you must investigate thoroughly. For example, the investigation done by Nicha and others before was not thorough enough, so now we have to consider the issue of secondary investigation.
Nicha and others looked at each other, hesitating, and discussed in a low voice, "Jiang Shen, although we also want to conduct door-to-door inspections, it is really difficult to do it. Moreover, the goal of our inspection is to extract fingerprints.
With DNA, I’m afraid it’s even more difficult.”
Jiang Yuan was stunned when he heard this. This was Xu Taining, and he could only buy a return ticket.
Zhong Renlong also whispered: "God, our previous investigation intensity has reached its limit. If we want to increase the scope and depth of the investigation, I am afraid we will need some evidence support, and perhaps a court summons and the help of a lawyer."
Zhong Renlong said this first in Chinese and then in Malay.
Miao Ruixiang tutted loudly when he heard this: "Malaysia has made it more difficult. Rapists have to be beaten more often."
Zhong Renlong continued to translate, and Miao Ruixiang hurriedly said: "I made a complaint, no need to translate."
Jiang Yuan waved his hands when he heard this and said: "If the intensity of the normal investigation has reached its limit, then let's do this for now and let's think of other ways."
This is actually part of Xu Taining's troubleshooting method. A thorough investigation of this matter is essentially a comparative level. Even if it is thorough, it cannot be explained clearly.
Therefore, since both Nicha and Zhong Renlong think that the local investigation is over, then simply investigating this clue will be exhausted. For the police, there is nothing incomprehensible about this. There are many places in the country where it is impossible to let people know.
You did your best to investigate, or in other words, before the popularization of DNA technology, no matter how thorough your investigation was, it might not be thorough enough. Coordinate Silver Case.
"Actually, the scope that needs to be investigated is not particularly large. Let me give you an idea. The footprints left by the suspect are very complete. You can judge the gait through the footprints. If you can collect the gait information of these people within the investigation scope,
, such as videos of incoming and outgoing transactions, I can also directly make judgments.”
The plan given by Jiang Yuan is equivalent to making a humanoid gait analyzer - cameras at domestic airports and high-speed rail stations can already be independently analyzed and matched. There is no such system in Malaysia, and there is no corresponding database. Jiang
It's as close as a real person can come on stage.
What Nicha and Zhong Renlong heard were very different. This was different from Jiang Yuan's previous performance on the TV station. This was a matter of two orders of magnitude.
At the TV station, Jiang Yuan may only need to see two-digit footprints and footprints, but if he is looking at a video to analyze the footprints and gaits of more than ten thousand people in an area.
"Is it really possible? Is it too hard?" Nicha put aside his shock and turned into admiration and a hint of embarrassment.
"The clues are stuck here. It's not hard work. I can see three to five hundred sets of gaits in an hour, but I can only see one or two hundred sets of footprints. You should try to collect as many videos as possible." Jiang Yuan
It’s not just a casual comment. It has long been known in China that crimes are solved simply by watching videos. At most, thousands of police officers have been organized to watch videos.
However, watching gait is much easier than other methods, but the technical requirements are high.
Jiang Yuan said this, looked at the time, and said: "That's it for today. I'm going to bed early. Thank you for your hard work. I will officially start watching videos tomorrow afternoon."
This period of time is used by Nicha and others to collect videos, analyze videos, and even edit videos.
Nicha and others fully understood, quickly thanked him, and respectfully sent Jiang Yuan and others to the car.
According to Huang Qiangmin's request, the hotel booked by the Malaysian police was quite good. Jiang Yuan stayed in a suite, took a shower again and went to sleep.
Because Miao Ruixiang was Jiang Yuan's junior brother, he got a separate big bed room not far away. Miao Ruixiang also took a bath first, then changed his clothes, and then took out a red cloth parcel from the suitcase.
The statue comes out.
Miao Ruixiang respectfully placed the red cloth statue on the table, lit three incense sticks, and then uncovered the red cloth. A wood-carved Jigong Bodhisattva appeared amid the green smoke.
Miao Ruixiang bowed, took out his mobile phone in person, and made a video call to Master Wu Jun.
