Chapter 807: Finding the Murder Weapon

"If the murderer is one person, then our previous investigation direction was completely wrong."

The annoyance in Lei Xin's heart disappeared in a flash. He is also a veteran detective and knows that making mistakes is normal.

Most investigations are done through trial and error. Who can say that a case can be solved 100% of the time. The level of forensic doctor Niudong in Qianjin District is also very good. His performance in past murder cases is also remarkable. Especially when it comes to the identification of various paper items, Niudong is a master. Many provinces and cities have Technical investigators would even come all the way here just to let Niudong do a paper inspection with his own hands.

A knife caused three kinds of wounds. Only a forensic expert like Jiang Yuan dared to look at the photos and make such a conclusion.

Lei Xin quickly put aside the issue of accountability and turned around and said: "In this case, the murderer's motive is probably not to make money."

"It is inconvenient for a single person to carry a machete if it is for burglary." Liu Jinghui followed up with analysis: "If there are three people, it is normal for one of them to carry a long-handled weapon. How much does it cost for a single person to carry a long-handled weapon?" There’s no need to bring a heavy machete. Even if you have to bring one, you should bring one of better quality.”

Liu Jinghui said a little casually, chatting: "The weight of a machete is at least about the same as the weight of a woman's bag. If it is a burglary to make money, bringing such a machete is very cost-effective. ”

"What about self-defense?" Wang Chuanxing asked, more for the sake of flattery.

Liu Jinghui followed the words and said: "It's enough to carry a knife for self-defense. Nowadays, if people see you holding a knife, they probably won't fight you. Moreover, his knife is so bad, it curls up after a few cuts. After a few more cuts, it was broken. It was obviously not prepared for killing people, but it was more like a random knife bought outside. "

"Committing a random crime?" Lei Xin straightened up and frowned tightly.

If this was a random crime, it would be like climbing from a muddy road to a snowy road. It is not an easy road.

"At least it's not for burglary." Liu Jinghui's thinking was very clear, and he said: "If you expect that such a machete will be used in the burglary, the best way is not to go!"

There was no need to explain this, Lei Xin nodded in agreement.

Burglary is for the purpose of stealing, not for robbery.

The victim's family is not a luxurious home, but an ordinary middle-class family. The total value of the property that the murderer took away after rummaging through boxes and cabinets was only tens of thousands of yuan. A family of this level can be achieved by any family in the same community. , therefore, if it is for the purpose of making money and if there is a possibility of fierce conflict, changing to another company is the most correct choice.

In other words, making some preparations in advance, finding a time when the household is not around, or breaking into the house when only the hostess is home, can greatly reduce the risk of violence during burglary. This murderer obviously went to a social university and didn't know this bit of common sense.

Of course, there are also some burglary offenders who are stubborn, that is, they will randomly choose a house to break into, steal if they can, and rob if they can't. But this kind of people are usually shot to death. It would be a very accidental encounter with such a person...

"So, if the murderer is a single person, it is not for making money, but for killing others?" Lei Xin followed Liu Jinghui's reasoning and asked one more question.

Liu Jinghui said "En" and said again: "The possibility of plotting someone is relatively high."

"We can check the surveillance again. Before, we mainly considered the situation of three people. However, we also considered the situation of three people walking separately." Lei Xinbai gave a sentence, then clicked, opened the lighter, and gave it to Everyone lights cigarettes.

Jiang Yuan looked around and saw that the others had no intention of speaking, so he said, "I can watch the surveillance, but the information is a little lacking. Is there anything from the technical investigation?"

"Not yet."

"The criminal was very careful. He left no fingerprints or DNA. If there were footprints, he wore foot gloves, and the subsequent traces were basically destroyed. The family stocked up on too much salt and detergent." Jiang Yuan sighed with emotion.

"An active participant in Double 11." Lei Xin replied, and added: "We have also considered the situation of couriers, but we have not found any at the moment."

Because he remembered the case in Malaysia, he checked a group of couriers.

At this time, Liu Jinghui closed the file with a "snap" and said: "It's difficult to check the person. I suggest checking the murder weapon. The quality of this knife is so poor, it doesn't look like it was bought in advance and used to commit crimes. Look at the situation of this family , there should be no need to buy machetes online. Moreover, the thick-backed machete is bladed, so it is considered a controlled knife. I think it is more likely to be purchased offline, and it is very likely that the murderer bought it from nearby.”

This speculation is a little bold, but Lei Xin has no objection. For him, the more clues for investigation, the better. If you can't find this clue, you can just check other ones.

Lei Xin asked someone to pull out the map and said: "If it's definitely a machete, there won't be many places where you can buy it. The hardware stores and decoration markets here should all sell them, as well as this one that sells hotel supplies and There are wholesale markets for camping equipment, as well as farmers markets, some vegetable markets also sell them, and there are also livestock markets and dog markets here..."

It's not much, but in detail, there are seven or eight kinds of them.

Lei Xin called several acquaintances in the nearby police stations and finally listed more than 40 locations. The small ones were hardware stores or decoration stores, and the large ones were building materials wholesale markets, with an area comparable to that of a university.

Lei Xin typed them out and said, "Okay, these are the places. Captain Jiang, do you want to take a break or..."

"I'll go to the livestock market and the dog market. I'll take the people from the backlog team there." Jiang Yuan was also willing to take a stroll.

The livestock market and the dog market in Qinghe City are adjacent. The livestock market is a market for selling large animals, including cattle, horses, sheep, pigs, etc. It also sells cubs and various related supporting products, such as ropes for tying cattle, soybean meal for feeding cattle, plows for catching cattle, and knives for killing cattle. Now it has gradually declined and given way to the dog market.

The dog market not only sells dogs, but also various other small animals, but there are relatively few poultry, and now it mainly sells pets.

Jiang Yuan's backlog team has more than 20 people, which is enough to search a market, and even a little bit more.

Lei Xin naturally had no objection and agreed immediately, and then assigned other addresses to other police officers in the criminal police team. They all got into their own Jetta, Prado and Audi.

Liu Jinghui followed Jiang Yuan to the A6 and smiled, "You don't usually go out on field missions. What do you think today?"

"The thick-backed machete is also my guess. I'm not completely sure what weapon the murderer used. Let's go to the scene and take a closer look. Maybe we can see some strange weapons." Jiang Yuan paused and said, "This murderer has a strong anti-reconnaissance awareness. He salted the corpse, which is quite creative. We need to pay more attention to it."

"Well, it seems that there are indeed many things to pay attention to in this case." Liu Jinghui paused and said, "If the murderer is not an acquaintance, the motive is very problematic."

"What do you mean?"

"Didn't Captain Lei ask in the conference room just now whether it was a random crime? I didn't answer directly, but whether it was a random crime? In fact, it is possible, but if we understand it in the way of stealing money, this case, whether it is random or not, cannot be explained, but what if the purpose is to steal people? For example... burglary, rape and murder?"

Jiang Yuan frowned.

"From the photos of the victim's family, the victim's mother and daughter are both pretty. Of course, the daughter is still relatively young, only 11 years old, but this kind of abnormality cannot be judged by common sense." Liu Jinghui said a few simple sentences, and then said: "This is just my guess. There were many people just now, so I didn't say it first..."

"Actually, it makes sense." Jiang Yuan suddenly expressed his support, causing Liu Jinghui to stop involuntarily.

"What do you mean?" Liu Jinghui asked.

"One of the reasons I mentioned the thick-backed machete is that on the heads of the two female victims, there were traces of suspected slashing with the back of the machete. There were traces of slashing with the back of the machete and traces of curling the blade, but this can only be confirmed after obtaining the murder weapon. But no matter what, when the murderer slashed the two women, at least at the beginning, he might have wanted to knock them unconscious instead of killing them directly."

"If that's the case, that's about it." Liu Jinghui sighed and said, "If it was just for the purpose of killing, he would have just killed them directly... In this case, we can also analyze the murderer from the motive."

The reason for salting the corpse was that I thought of many people hoarding salt. If the corpse is to be discovered a little later and not too smelly, salting it should be convenient and effective. By the way, I also made fun of the salt hoarding army. After writing this story, I searched it on the search engine. I didn't expect that there are so many perverts in this world... The recent cases are basically all my own imagination. Sometimes it's hard to solve the case, so I talked to my friends who are policemen, but I only got some vague answers. I can only say that when an author writes a book of more than 2 million words, he will really learn something.