National Forensic Doctor

While Jiang Yuan was carefully selecting cases, Li Jikuan rushed back with his thin legs.

"Well... there really is a lame man, no, this is called a person with physical disabilities." Li Jikuan waved his hand after speaking: "This is not important, the main thing is that this guy... this guy ran away, and he didn't even finish his work. After he ran away, the foreman thought he had gone to work elsewhere. Moreover, the ethnicity is the same, the height is the same, and he is still left-handed!"

The more Li Jikuan talked, the more excited he became, mainly because it was so smooth. Since he became a police officer, he had experienced a lot of murder cases. This case was about to become a big trouble. No matter what he expected, it immediately became a detection state.

Jiang Yuan smiled and said: "Are the ethnic groups worthy of each other? However, judging from the way he stabbed three times in a row, a simple urban collector would not be so decisive and could easily be counterattacked. The knife he used was also very good. Well, it must have been used frequently. It was sharpened. A knife scraped through the bone and slid out a long groove..."

Li Jikuan quickly took a pen and paper from the side and quickly took notes.

After Jiang Yuan finished speaking, Li Jikuan laughed twice and said: "The person hasn't been caught yet, and the murder weapon hasn't been seen yet. This person ran away after stabbing him... But it's okay. We have located the person and dispatched Someone went to arrest him.”

"You ran away with your mobile phone?" Liu Jinghui was a little curious.

"No, he should have folded his phone card. This man has been punished by administrative punishment and has been squatting for 15 days. He must have learned a little bit." Li Jikuan said with a smile and said: "He didn't learn much. He called his wife yesterday. In addition to receiving verification codes, his wife's mobile phone also has the phone numbers of three or four family members who call the local courier, and it is locked at a glance."

Li Jikuan's tone was relaxed and his face was filled with a sincere smile.

He was really happy, so happy that he couldn't hide it even if he wanted to.

Lei Xin's heart palpitated as he watched.

What is this? This is like hiring a combine harvester at a large price. You paid a deposit and rent, then hired a large truck to transport it, served tea and water to others, treated guests to dinner, bought insurance, oil and spare parts, and then I worked energetically all morning, harvesting the crops that took me several months to harvest. Then, during my lunch break, my neighbor said, "I can borrow this machine for a while."

Li Jikuan looks like such a neighbor.

Lei Xin looked at him, knowing that he would not share the fuel cost of the combine harvester with him, let alone the rent and transportation costs. The more he looked at him, the more he felt itchy.

"Let's just take this case." Jiang Yuan selected the case.

"Okay, okay." Lei Xin immediately showed a cute smile. The beard that hadn't been shaved for two days was a little stubble, but it didn't affect the sweetness of his smile.

Lei Xin agreed, then went to see the case, and then his expression became serious.

"The murder case of Shuxiang Mingyuan." Lei Xin saw a photo of the back of the male deceased's head appearing on Jiang Yuan's screen. In the photo, the head of the deceased has turned into a somewhat rotten mummy, and there are deep bloodstains of varying widths and depths.

Without even reading the text, Lei Xin immediately knew the case chosen by Jiang Yuan.

This case can be said to be a representative case of the decline in public security in Qinghe City this year. A family of three living in the city's higher-end community "Shuxiang Mingyuan" was killed by a murderer after breaking into their house. The murderer also had certain counter-detection methods. , once attracted the supervision of the municipal bureau and the provincial department.

Nowadays, the "705 Task Force" has not been cancelled. There are still nearly 10 criminal policemen working day and night. The case has also been tried in many directions, but they have not been able to go deep.

"Have you found a breakthrough in this case?" Lei Xin was full of hope. He knew that Jiang Yuan would not choose this case casually. Jiang Yuan's choice of case 705 meant that this case had obvious advantages among these cases. Lei Xin naturally wanted to know what difference Jiang Yuan saw.

Jiang Yuan did not answer immediately, but first arranged the photos of the deceased on the table in order.

The photos he posted were all of the heads. The hair of the three deceased persons, two adults and an 11-year-old girl had been shaved off, revealing the semi-rotten scalp and the messy scars from being chopped. In some places, Also exposed are thick bones.

Liu Jinghui and others naturally gathered around. Although they were not forensic doctors, they often looked at photos of corpses and injuries, and they were more or less knowledgeable. The difference was probably similar to the difference between antique enthusiasts and the national archaeological team.

"The couple's heads were chopped more than a dozen times, and the child was also chopped several times. I remember this case. The provincial department sent Lao Song to follow it, right? In the end, it was still not solved?" Liu Jinghui Those who followed Jiang Yuan all over the country could only have a partial understanding of the situation in Shannan Province, but they were not very clear about it.

Lei Xin nodded solemnly and said: "In this case, we initially considered it a burglary-turned-homicide. Later we considered the possibility of a vendetta, but we didn't follow up on the clues..."

Lei Xin: "There are four gates in the community, all of which are monitored, but the courtyard wall is very short, especially the side facing the river. During the dry season, you can actually walk all the way up. We suspect that the murderer entered and exited in this way, but it is also No matching footprints or shoe prints were found.”

Lei Xin: "A more critical issue is the issue of time. After the murderer killed the family, he confiscated some of their belongings. He should have been wearing gloves and foot gloves during this period. After that, he hoarded the salt at home, A large amount was dumped on the body, and finally the kitchen and bathroom cleaners, such as detergent, Mr. Wham, etc., were all poured on the ground, which resulted in the body not being discovered for a long time.”

Rei The smell was not too strong...the murderer opened the window for ventilation and turned on the range hood..."

Liu Jinghui took out his notebook and recorded a few key points. After Lei Xin finished speaking, he couldn't help but said: "When I heard about this case, it was quite complicated. I didn't expect that there were so many twists and turns. These murderers, but also He really has some criminal experience..."

"There are not many murderers." Jiang Yuan interrupted Liu Jinghui to prevent him from analyzing along the wrong route, and explained: "The main flaw in this case lies here. There should be only one murderer."

"Only one? But... the three victims at the scene were beaten to death by three weapons." Lei Xin didn't want to question Jiang Yuan, but this matter involved the basis of the case.

If there are three murderers, it means that the crime is committed by a gang. However, the methods and even the logic of the gang's crime are completely different from those committed by a single person.

For example, it is very easy for the news to leak when a gang commits a crime. Therefore, the criminal policemen of the Qianjin District Bureau put a lot of effort into special circumstances, but in the end they achieved nothing. In addition, gang crimes often involve ex-convicts, which is also one of the directions of investigation. Third, when searching for surveillance and looking for suspects, the dynamics of gang crimes are completely different from those of a single person.

Fourth, in terms of motivation, gang crimes are relatively more rational and more profit-oriented, and there must be a basis for joint crime.

Therefore, there is a big difference in the investigation stage, especially when determining the direction of investigation, whether a gang commits a crime or an individual commits a crime.

"This is indeed more difficult." Jiang Yuan interrupted the conversation between the two, pointed to the wound of the deceased in the photo, and said: "I only realized this after looking at this photo several times. Because the body is decayed The wound on the head was not deep enough... In short, according to my judgment, the murderer is one person, not three people as you judged."

Jiang Yuan has LV6 tool trace detection. Generally speaking, magical skills of this level are used for dimensionality reduction strikes.

But this time, the murderer was both conscious and by chance, creating a scene with traces of tools that were at least level 4, and would require level 5 to diagnose.

Of course, this does not mean that the murderer's criminal ability has reached LV5. The difficulty of setting up the puzzle is obviously lower than that of decrypting it.

Nonetheless, the circumstances of this case are quite unique.

However, Jiang Yuan believes that once this special point is overcome, the progress of the investigation of the case will be greatly improved.

Jiang Yuan took a photo of each of the corpses of the three deceased and said: "The weapon used by the murderer is the same. It should be a thick-backed machete."

Jiang Yuan made a gesture and then said: "The quality of the knife was not good. At the beginning, the murderer used a sharp knife to chop at the male victim, the male owner of the family. He slashed multiple times in succession. During this period, he also hit the wall twice, and the result was that the machete curled its blade. Therefore, the knife marks on the male owner’s body are respectively the blade state of the murder weapon and the curled blade state.”

Jiang Yuan: "At this time, the murderer may not have realized it, or he may not have been able to change the knife, and he slashed at the hostess again with the knife. The hostess blocked the machete with her hand, but was still chopped down. Then, the machete broke here. .”

Jiang Yuan specially marked the location where the machete broke, and then marked the location of the break point on the head of the female deceased.

At this point, it is very difficult for ordinary forensic doctors.

A broken knife, or a broken knife with a curled blade, how to distinguish it from the original knife?

The forensic doctors in Qinghe City, and even those supported by the provincial department, are probably completely lost here.

Jiang Yuan only said: "The murderer was very strong. Even the broken knife with a curled blade caused very strong damage, and he hacked to death the third victim, an 11-year-old girl."

Lei Xin understood what he heard and slapped his thigh straight after hearing it: "No wonder the murderer used so much force when he chopped the little girl. We thought it was a different person, but in fact the knife broke and he subconsciously applied more force!"

I was supposed to have elective surgery today, but because I had a cold, it was moved to next week...