I don't want to solve the case when I'm a little policeman.

Chapter 252 Competing for Discussion
After finishing the economic investigation case, Qu Hou and the others continued to study the Rainy Night Murder case. Xu Zheng continued to explain his unfinished argument, "Let me make an analogy. First, let's determine that the murderer is most likely a man under the age of 40. Because people in this age group are stronger and stronger.

Then they also have the ability and resources to learn crime methods on the Internet.

As long as he searches for TV series, movies, documentaries, etc. similar to the rainy night murder case on short videos such as Douyin, there will be traces of his browsing in the background, and the Internet police can contact Douyin officials to obtain these account information and check them one by one.

I have seen these similar videos myself, and the number of likes is not high, so there are not many account information that need to be checked.

Moreover, how did the murderer observe Hou Ruohan?

I feel that investigating her whereabouts will not be very useful, because Murder can track her every move from the Internet.

If I were a murderer, I would definitely get to know her through platforms such as Hou Ruohan's Douyin Weibo, and I would definitely not observe her in reality, because in today's society, let alone the cameras everywhere, even passers-by often take a video Post it online. "

Xu Zheng's words are a bit absolute, but in this case, the chances of the murderer personally following Hou Ruohan are really not very high, otherwise the six cases will always find some clues about him.

Wan Haihong and Qu Hou looked at each other and laughed at the same time. However, they sighed again, and Wan Detachment said: "Our previous investigation ideas were too much based on experience, and we didn't work hard on the Internet. I suggest , In the future, criminal police investigators must also have knowledge about cyber police.”

Ordinary criminal cases are mainly divided into criminal investigation and economic investigation, and other police types cooperate with them. However, with the rapid development of society, more police types have been established, such as the medicine and food environment detachment, which was also established in the past few years.

In criminal investigation, the investigators are all selected step by step from the bottom. They have many years of experience in criminal investigation, but wise men think about it, and there are unexpected things, especially the application of various high-tech in criminal cases.

Zhang Yuqi found the information of several previous victims and cast them on the big screen, "We also checked before, and those who watched their videos on the Douyin accounts of these victims have been screened, but we didn't find them. Suspicious person."

Wan Haihong and Qu Hou became interested, "Hasn't the same account viewed the videos of these five people?"

"No, colleagues in the Internet police technical team told us that if ordinary people use the web version of Douyin, and are still surfing the Internet in Internet cafes, and their accounts are tourists, it will be difficult to find traces."

After Zhang Yuqi finished speaking, she took another look at Xu Zheng, "However, I agree with Xu Zheng's suggestion that the suspects will learn how to commit crimes online. There is a movie about Ah Sanguo. Helped his wife and daughter to hide the murder.

Therefore, check the browsing records of short video platforms such as Douyin and Kuaishou, and compare them with the accounts of the six deceased. If there are the same accounts, [-]% of them are the murderers. "

After Zhang Yuqi finished speaking, everyone began to discuss. What she said was really possible. She just compared the accounts of the five deceased before, and did not expect that the murderer would learn from the Internet.

At this time, a female colleague from Suyun City asked weakly: "Then do we still need to track down Hou Ruohan's whereabouts?"

The investigation must be investigated, and the investigation must be focused, not in case there are clues, and the more careful the investigation, the more transparent Hou Ruohan's information will be. For example, why did she drive to the scenic spot in the middle of the night? Or for example Say, have the murderer and Hou Ruohan met in reality?
Of course, not the last time.

These all need to be investigated, and they cannot be found in a short time. If a case is compared to a system, it requires the cooperation of various departments. If there are clues, then seize the clues and search hard.

Like the suggestion made by Xu Zheng, Qu Hou called in two Internet police colleagues on the spot, without saying a word, and tried his best to pursue this clue. The current Internet is basically a real-name system, and most people play short videos on their mobile phones and log in directly to WeChat. , it is also very simple to check.

At two o'clock in the afternoon, Lu's forensic doctor brought the latest autopsy results, and it was confirmed that there were no clues on the surface of the remains.
"However, I am not without gains. Based on the examination of the victim's body." Forensic doctor Lu said, "If the murderer did not take medicine this time, he is considered a man with extraordinary talents. I estimate that the exercise time should be more than 40 minutes. Therefore, The psychological prediction we made about the murderer before should be incomplete.

This man did not cause his wife or girlfriend to have an affair because of sexual disharmony. From his series of behaviors, it can be judged that he is machismo, has a strong desire to control, and has a typical antisocial cognitive disorder personality. "

Zhuang Qiang asked curiously: "Master Lu, even if we have the information, we still have no way to start. Should we go to bars, nightclubs and other romantic places to find such people?"

Peng Yue continued: "It seems that this is indeed possible. After all, such a man should be rare, right?"

Lang Shaobai shook his head, "I don't think it's possible. The murderer hates cheaters, so he won't use this method to vent his desires. I don't think the spoils he collects after committing crimes are just hair from the dead cats. And clothes, [-]% of them will take pictures as souvenirs, and even record the whole crime process with his mobile phone."

The investigator of Suyun City, Passerby A also said: "Since he came to Suyun City to commit crimes, judging from the fact that he commits crimes twice a year, he should live in Suyun City. I think we can investigate Suyun City. Information about men who have rented houses in the city in the past year.

Well, there's also the hotel check-in situation.

Or if he didn't rent a house, then let's check the highway intersection from Changming City to Suyun City. "

There are also two female investigators in the Suyun City Detachment, who look like gentle girls from Jiangnan. Wu Nong said softly, "Leaders, colleagues, I also have a small suggestion. It's like this. I compared them. These six The deceased had several things in common, all of them were between 30-35 in age, 160-165 in stature, with long hair and white skin.
Is that his girlfriend or ex-wife?

Can we check the people in Changming City who have been divorced for a year or earlier and meet these conditions? "

The more open the research and judgment meeting, the more active the colleagues speak.

Even Ji Meiyue, an investigator who is used to sorting out information, made a suggestion. At the end of the meeting, the investigators present rearranged nearly ten more ideas based on the previous investigations.The sorted out suggestions and ideas were divided on the spot. Of course, most of the places to be investigated are in Suyun City, so their detachment is responsible for more.

Changming City needs to go back to discuss and redistribute the police force, because the second brigade cannot handle a case for a long time, and the second brigade has to be responsible for finishing the Huang family tragedy.

The deliberation meeting finally ended at [-]:[-] pm. This is the longest meeting Xu Zheng has had. The discussion and investigation process of the entire case can be made into a reference book. However, it is not yet confirmed whether these methods can find the murderer. .

It can only be said to check it first, this is the normal investigation process, it is impossible to find clues every time like Xu Zheng.

However, he mentioned that the murderer learned the process of committing the crime online. There are no fewer than dozens of such cases of murdering women who have an affair on rainy nights on several short video platforms. In addition to TV series and movies, there are hundreds of such short videos. Therefore, I have watched these short videos The number of people has increased geometrically.

The two Internet police technicians found out in the afternoon, and when they left, they provided Xu Zheng with tens of thousands of accounts, and what Xu Zheng had to do next was to analyze these tens of thousands of accounts, contact the platform, obtain the identity information of the accounts, and then screen them out. A man who meets a murderer.

Xu Zheng scratched his head, this thing is not easy to organize, there are so many, tens of thousands of people probably don't talk about it, forget it, I have to finish the suggestion I made without sleeping.

When I returned to Changming City, it was almost eight o'clock in the evening. After arriving at the Municipal Bureau, it was immediately disbanded. Anyway, the murderer had already committed a case, and the next time was at least three months away.Everyone didn't intend to have a dinner together, it was really a day of meeting, and their heads were buzzing.

After arriving home, the whole family was sitting in the living room playing mahjong. What Xu Zheng didn't expect was that Lu Kexin came again, still wearing Han Rui's pajamas. It was obvious that this woman wanted to steal his sleeping place again tonight.

When Xu Zheng took off his raincoat and entered the room, the four women did not stop playing mahjong, but they all turned their heads and asked him if he had eaten, Xu Zheng nodded, "I have eaten, you continue to play, I will take a shower. "

At this time, Han Dongwen, who was sitting on the sofa, put down his cell phone and hurriedly grabbed Xu Zheng, "Come on, Xiaozheng, let me tell my uncle what's going on with the case of the Huang family? Your police have found the murderer, but the murderer has a big background and dare not investigate any further."

Looking at the curious Han Dongwen and the long-necked beautiful reporter Lu Kexin, it turns out that this is the purpose of her coming here. Xu Zheng smiled and did not hide it. After the case is over, the city bureau leaders will report The society is open, because the police do not make it public, so when it comes to the trial, the trial will also be open.

The tragedy of the Huang family has a high influence in Changming City. Of course, the police will not let go of this opportunity to publicize, "Uncle Han, we have identified the murderer in this case. It is not yet time to arrest him. Propaganda, Yan Jiafu, the chairman of the Yangtze River Tourism Company is the murderer."

Han Dongwen became more interested, and even Lu Kexin stopped playing mahjong and ran to Xu Zheng's side, "Xu Zheng, you mean that the real murderer is not Yan Jiafu, that's not Yan Jiafu, it can only be his son Yan Bo, Is it this way?"

Xu Zheng nodded, "Yan Jiafu's surrender is not to take the blame for his son, but to delay his son's time. But this news, we can't spread it for the time being, otherwise we will be legally responsible."

In fact, it's not that serious. The case itself has come to an end, and the smuggling organization, the special police and the action team have already set their sights on it. In just a day or two, they will start to collect the net.

Lu Kexin was very curious, and asked Xu Zheng formally at this time: "Xu Zheng, can I represent Nanhai Metropolis Daily to conduct an in-depth interview with your special case team on this case?"

The competition among the media is also quite fierce, and now that the print media has gone downhill, Nanhai Metropolis Daily's network section focuses on in-depth reports, "Okay, when the case is over, I will introduce you to our team leader, but can you Yes, I can't guarantee it.

Also, I will not be interviewed for this case. "

Lu Kexin smiled in satisfaction. Sure enough, this young man still has to come here often to become friends with him. If this is the case, as a friend, Xu Zheng will never refuse a small request between friends.

It's just that after a while, when she knew that Xu Zheng was still involved in the rainy night murder case, Lu Ke became more interested.Because Changming people are more interested in the tragedy of the Huang family, but the rainy night murder case will be of interest to everyone across the country, and it can even be adapted into a TV series.

Although the police kept the murder case in the rainy night secret, Lu Kexin obviously knew a lot. Could it be that Xu Zheng went out early in the morning because he caught the murderer?
If the murderer had been caught, it would be impossible for Xu Zheng to come back so early.

If the murderer was not caught, and there was heavy rain last night, then the murderer must have committed another crime.

This is the sixth case. At this time, as a reporter, Lu Kexin's sensitivity to news materials made him secretly decide that he will not leave tonight, and even stay here permanently. He can't touch Xu Zheng, and he can't even bend him. Pillow people?
After Xu Zheng took a shower, he saw grandma and Han Rui busy in the kitchen, next to Lu Kexin taking pictures with his mobile phone, and kept flattering grandma.

Before he walked in, Xu Zheng smelled a strong smell of chicken soup, could it be?
Sure enough, after walking in, he saw the freshly baked chicken-ming soup dumplings. This is a delicacy in the old Gulou district. When Xu Zheng was young, he often went to Jincheng Building in Gulou Square to eat chicken-ming soup dumplings with his family.

The appearance is about the same size as Xiaolongbao, but in fact it should not be regarded as a kind of soup dumpling, because the pleats face down, and the surface of the soup dumpling is smooth and round without wrinkles when it is just out of the cage. At this time, it will not break when you pick it up with chopsticks. If you take it with your hands, heh, this is a pure layman.

No, Lu Kexin was greedy, and she took the chicken-crying soup dumpling just out of the pot, "Oh, it's so hot!"

Grandma Su Tongyun said angrily: "I told you just now, this is a soup dumpling, the soup inside has not flowed out, can you keep it hot?"

It's been a long time since Xu Zheng had eaten chicken-ming soup buns made by grandma, "Grandma, it's been a long time since you made these buns, today we're lucky."

"Didn't you say that you have eaten, oops, what should you do? Grandma didn't prepare your meal, or, will I order noodles for you later?"

Xu Zheng pouted, "Grandma, your grandson's stomach is going to be hungry!"

Although Han Rui felt sorry for him, there was no such thing as delicious food, "Hee hee, how about this, let the two of you try the first pot first, and the next few pots will be steamed, and they will all be yours."

Regardless of the fact that everyone in the family is here, plus Lu Kexin, they all eat very little at night, and Xu Zheng can support the four of them by himself.

The jiming soup buns were cooked, and Tian Xinyue also came to help. To eat this kind of buns, it must be served with an egg drop soup, plus a plate of vinegar and pickles. Soon, the table was full of tableware.

Lu Kexin and Han Rui came over with some Chicken Crowing Soup Buns. After grandma sat down, Lu Kexin swallowed a mouthful of saliva, and waited for grandma to take the first bite before putting down her chopsticks.

After Su Tongyun saw it, she smiled and waved her hand to tell her to eat quickly, "Our family doesn't have so many rules, hurry up and eat while it's hot."

Seeing that Lu Kexin was holding chopsticks and was about to pick up the steamed buns to eat, Han Rui hurriedly stopped her, "There is still a particular way to eat this chicken-crying soup dumpling, lift it gently, move it slowly, open the window first, and then drink the soup. "

Xu Zheng ate sixteen buns and drank another bowl of egg drop soup before he breathed a sigh of relief, then he patted his stomach and hiccupped, "No, I'm sleepy after eating, I have to sleep for a while. "

Han Rui wanted to stop him and hesitated for a while, but let him go to bed first. In fact, if you eat too much dinner, you will not be able to sleep well, but Xu Zheng is obviously not in this category.

When Han Rui and Lu Kexin played mahjong until 10 o'clock in the evening, they went upstairs and saw that Xu Zheng was sleeping soundly on the bed, but the loud snoring made Han Rui's heart tremble, "Kesin, I'm sorry, he doesn't usually snore much, but this time he might be too tired."

Lu Kexin waved his hand, "There is no man who doesn't snore. I took my things and went to Xu Zheng's room to rest. Xiaorui, you should go to bed too."

(End of this chapter)