On the phone, Anna laughed dryly and said: "We took those two cigarette butts for testing, and they are indeed the same person."
"And after technical identification, the blood type is type B, and the epithelial cells in the saliva contain two chromosomes, X and Y."
"Very good." Hearing this reply, Gu Chen was somewhat relieved.
At least the technical issues have been resolved by the Italian police.
So Gu Chen asked again: "Have you found the person who last contacted William?"
"This... is a bit troublesome." Anna told the truth, looking exhausted.
"Gu Chen, we have been investigating today, and we can initially identify four people who have been to William's house. We are currently preparing to summon these people, so before taking action, I took the time to call you because I was afraid that you would be anxious.
."
Anna was obviously quite reassured by Gu Chen's trust.
Explaining the action to Gu Chen was clearly beyond the content of the white paper in the cooperation between the Chinese and Italian police.
According to the white paper's regulations, the Italian police do not need to report at all.
But Anna also considered that in William's case, it was the Chinese police team to which Gu Chen belonged that first discovered the situation.
Not communicating with Gu Chen seemed a bit too mean.
Therefore, after weighing the situation, Anna still chose to inform Gu Chen.
"Thank you Anna." Gu Chen had already felt the pressure from Anna from Anna's words, so he smiled and said: "Then can you give me an overview of who these people are?"
"One is a plasterer." Anna said calmly: "William's house was somewhat damaged, so the plasterer appointed last night came to repair it. These nearby neighbors can testify, because the plasterer was introduced by the neighbors."
Anna was talking on the other end, and Gu Chen was already taking notes, and asked: "What about the others?"
"The second one is a beggar." Anna continued: "Last night, a beggar went door to door begging. William gave away some of the food at home. The neighbors all know this."
"The third one is William's...William's lover. She also went to William's house last night. We confirmed this on the phone."
"As for the last one, he was a salesman who came to sell products door-to-door, but William did not buy it."
"These are the four most likely suspects we finally identified based on call records and interviews with surrounding neighbors."
Anna had just finished speaking, and Gu Chen had already recorded all the clues.
On the phone, there was a brief moment of silence.
Anna was a little confused and asked Gu Chen: "Gu Chen, are you listening?"
"I'm here." Gu Chen said.
"If there's nothing else, we might have to investigate these people." Anna said weakly, trying to wait for Gu Chen's response.
After another brief pause of two seconds, Gu Chen said: "Anna, you should pay close attention to this plasterer. This person is very suspicious."
"What? You mean the plasterer is the most likely?" Anna was stunned, but also smiled and said: "Gu Chen, we haven't investigated these four people yet, why do you only let us focus on the plasterer?"
"Because he has serious suspicions." Gu Chen also expressed his thoughts without hesitation.
This made Anna on the other end of the phone stunned for a moment.
When Officer Wang heard the conversation between the two, he couldn't help but wonder: "Gu Chen, Officer Anna clearly told you that there are four suspects, why are you only interested in the plasterer? Do you suspect that Mr. William's death is related to him?"
"Yes." Gu Chen nodded to Officer Wang on one side and continued to speak on the phone on the other: "Officer Anna, just do what I say and investigate the plasterer first."
"Why?" Anna hesitated and said instinctively: "Gu Chen, you have to know that investigation takes time, but you have to give me a reason, right?"
Although she knew that Gu Chen was quick in thinking, Anna sometimes really couldn't keep up with Gu Chen's pace.
From their partnership these days, it can be seen that the gap between the efficiency of handling cases between myself and the Chinese police is obvious.
Especially in terms of clue combination reasoning, the Chinese police can always give the most suitable option, which makes Anna a little embarrassed.
"Anna." Seeing Anna's hesitation, Gu Chen turned his pen habitually with his right hand, circled the four suspects on the paper, and said: "You have to know that these suspects all went to William's house last night, and they are also the most famous ones.
William's possible killer."
"So you have to combine the respective characteristics of these people to conduct accurate investigations and filter out the suspects with the lowest probability first. In this way, your work efficiency will be greatly improved."
"Let me just say a few points. Let me ask you, have I ever found cigarette butts in the house?"
"Yes...yes, you told me personally that there is one cigarette butt indoors and one on the doorstep."
"That's right." Gu Chen nodded with certainty and explained: "This person was able to enter the house, talk to William, and hold a cigarette in his mouth. Do you think it is possible for him to be a beggar?"
When Gu Chen asked, Anna sobered up.
After Anna hesitated for a moment, she said: "Yes, a beggar comes to beg for food with a cigarette in his mouth, and two at a time. This is a bit unreasonable."
"If a beggar has money to buy cigarettes, he doesn't need to beg, so the probability of a beggar getting into the house should be very low."
"So the promoters can be eliminated quickly." Gu Chen took his mobile phone and walked back and forth in the room and said, "Have you found the brand of cigarettes?"
"Low-end cigarettes, as I said before at William's house, are a low-end brand of cigarettes in Italy, the cheapest kind." Anna said.
"Yes." Gu Chen said with certainty: "You mentioned it to me before, and then I also looked for relevant information based on the cigarette logo, and I found that this kind of cigarette can be called a national-level affordable cigarette."
"This kind of cigarette is especially popular among low-income people, so it shows that the perpetrator is probably not wealthy and does not care what others think of him."
This chapter is not over, please click on the next page to continue reading! "If this is the case, you can exclude promoters, because promoters care most about other people's impressions of themselves."
"No matter how poor I am, I can at least buy decent cigarettes. Even if they are not high-end products, they are not the cheapest low-end cigarettes."
"Yes." Listening to Gu Chen's words, Anna on the other end of the phone said happily: "Gu Chen, what you said makes sense. If I were a salesman, I wouldn't be able to buy low-priced cigarettes for a rich man like William.
In front of me, especially if he smoked two cigarettes in a row, it is obviously not in line with the professional habits of sales."
"Furthermore, promoters care about face the most. Just from the aspect of image, this can be eliminated."
"And your test." Gu Chen followed Anna's words and said, "If I heard correctly, you just told me that epithelial cells can be detected from cigarette butts, right?"
"Yes." Anna also agreed: "The test report is in my hand now."
"Epithelial cells contain two chromosomes, X and Y, right?" Gu Chen asked to confirm.
Anna smiled: "Yes, is there any problem?"
"Of course there is a problem, because at least it can be shown that the perpetrator is a man, so William's lover can be ruled out." Gu Chen said.
"Is that so?" Anna was completely shocked. She couldn't help but froze, and then said: "I was not very familiar with epithelial cells and chromosomes before, so there is such a saying? It turns out that through chromosomes, it is
Can you tell the difference between men and women?"
"This is basic knowledge. We learned it in high school biology." Gu Chen also chuckled twice, and then said:
"Anna, you just need to remember that men and women have different sex chromosomes. Men are made up of XY, and women are made up of XX."
"So when you go for a blood test, it's to check whether you have a Y sex chromosome. If you have a Y sex chromosome, you're a male."
"So that's it?" Anna was once again in awe of Gu Chen's admiration, and she couldn't help but exclaim: "Gu Chen, I really have you, you are simply amazing."
"If you make the distinction like this, then the smoker must be a male, and William's lover can be excluded. You are simply a genius."
Anna admired Gu Chen's talent from the bottom of her heart.
In this way, Gu Chen could actually use the elimination method to help him find the most likely suspect.
Thinking about myself just now, I was still preparing to follow my colleagues to investigate these four suspects.
You know, the work of investigating a suspect is quite long and tedious.
It is even more difficult to investigate four suspects at the same time. Sometimes it is more like finding a needle in a haystack.
Not to mention the time cost, the various resources consumed are also countless.
Thinking of this, Anna was very excited and hurriedly asked Gu Chen: "So according to what you said, the top three can be eliminated, and only the plasterer is the most suitable?"
"That's right." Gu Chen also shared without hesitation: "Think about it, are the butts of those two low-end cigarettes very short?"
"Yes...yes."
Gu Chen heard the sound of flipping through papers on the other end of the phone. It was obvious that Anna was also looking up information.
"The cigarette butt was very short and soaked with saliva, indicating that the perpetrator habitually held the cigarette butt in his mouth."
"Most of us don't put the cigarette holder in our mouth. Unless the person's hands are very dirty or he is too busy to do anything, then the plasterer fits this characteristic very well."
"If we put it all together, the plasterer is the most suspected of committing the crime. You can start with him first."
"Haha, how can it be so easy?" Anna was so happy that she didn't know how to praise Gu Chen.
Gu Chen's simple and logical reasoning has helped eliminate the three people based on known clues.
In this way, Anna's Italian police team had a main target of investigation, and they couldn't help but feel happy.
"Thank you Gu Chen, if there is any progress in the case, I will notify you at any time..."
Anna hung up the phone with thanks.
On the other side, Officer Wang, who saw the whole process, was not surprised by Gu Chen's quick reasoning.
Operations like this seem to be commonplace for Officer Wang.
He just kindly reminded: "Gu Chen, if you help the Italian police without reservation, they may not appreciate it. Did you forget about Carmelo's incident at noon? Let me tell you, it would be better to let them solve it by themselves.
Look at their efficiency in handling cases.”
"Senior Brother Wang." Gu Chen glanced back at him and said, "Maybe the Italian police can do a good job. I'm just speeding up their case handling procedures."
"You have to know that if four suspects are investigated at the same time, the amount of police resources and time consumed is completely immeasurable."
"And once the time delay is too long, it will hinder the progress of the case. Helping them find the key to the problem as quickly as possible and with the most accuracy is precisely helping ourselves."
"Because although William and we met by chance, they are still friends and we have a simple acquaintance. I also hope to find out who the murderer is as soon as possible."
In Gu Chen's work, there is no so-called intrigue or conspiracy.
Even if there are conflicts and rejections during the case handling, you only need to solve the key issues.
Sometimes I don’t think about anything else at all…
Officer Wang also knew Gu Chen's temper, so he stopped retorting and waved his hand and said, "Don't think about anything, just go to sleep."
…
…
The next morning.
As usual, Anna drove the Chinese police team to the police station.
On the way, Anna briefly introduced the investigation progress of the team members.
Starting last night, the Italian police took action and the action is still in progress.
Arrive at the Luocheng Police Office.
When Mario saw Gu Chen just sitting down, he personally handed a glass of hot milk to Gu Chen and said: "Officer Gu, this glass of milk is for you."
"Thank you, I've already had a drink at the hotel." Gu Chen declined kindly.
Mario was a little unhappy and said directly: "This is different. This glass of milk is a special thank you to you, Gu Chen, from me on behalf of all my colleagues in our office."
This chapter is not finished yet, please click on the next page to continue reading the exciting content! "Thank me?" Gu Chen was stunned and asked him curiously: "Officer Mario, why are you thanking me for no reason?"
"He wants to thank you for helping us find the murderer who was most likely to strangle William." Anna put down her belongings, walked to Gu Chen and said, "Do you know, Gu Chen? Based on the case handling ideas you provided us yesterday,
This saves us a lot of work.”
"Just investigating the plasterer is enough to give us a headache. As you speculated, we also feel that there is something wrong with this plasterer."
"Did you find any latest results?" Gu Chen was curious and asked again.
Mario shrugged and said with a smile: "It turns out it's too early to tell now. George is leading a search. As long as the plasterer can be caught, I guess the case will be solved quickly."
"I hope so." Gu Chen nodded slightly, looking at the steaming pure milk on the table, he couldn't help but smile and took it in his hand, saying, "Okay, I'll drink this milk."
After saying this, Gu Chen raised his right hand and drank the milk in the cup.
"That's right." Like a good buddy, Mario put his fat right hand on Gu Chen's shoulder and said, "Gu Chen, you are definitely an excellent policeman. We all think so."
"That's right."
"Yes."
"Gu Chen, you did a great job."
…
Under the guidance of Officer Mario, many Italian police officers in the office made friendly comments.
This also objectively increases everyone's recognition of Gu Chen.
Gu Chen smiled, stood up and saluted everyone: "Thank you for your recognition. We are friends. It is right for the police of the two countries to help each other."
"Gu Chen." Seeing Gu Chen's politeness, Fabio, who was sitting behind Gu Chen, teased: "You are such a smart person. Did your parents cultivate special interests and hobbies for you when you were a child?"
"I remember that parents in your country seemed to like to ask you to sign up for some interest classes when you were very young. I wonder if this is the case?"
"Yes, Gu Chen must have developed his intelligence when he was a child, right? Otherwise, why are your reactions and reasoning abilities always faster than ours? In the previous cases, not only you, but the reaction speed of your entire Chinese police team was obviously
Be higher than us."
Anna has a strong opinion on this.
After all, last time, Lu Weiwei actually became a teacher and sorted out the case for the Italian police.
It is precisely because of that beginning that no one dares to underestimate the strength of the Chinese police team.
Gu Chen looked at everyone's curious eyes and said jokingly: "In our country, what parents like is called hobbies, and what parents don't like is called playing with things to lose one's ambition."
"So what you call interest actually depends on your parents. For example, when it comes to love, if your parents agree, it's called love. If your parents don't agree, it's called fooling around."
"Hahahaha!" Listening to Gu Chen's humorous remarks, many Italian policemen in the office were amused.
This is the first time everyone has heard this statement...
"Haha, Gu Chen." Anna also calmed down and laughed dryly: "If that's the case, I think the most inappropriate thing as a parent is that you look down on your own children, but you also hope that your children
If you become a dragon or a phoenix, how can you make your children feel uncomfortable by doing this?"
"This is also the biggest failure." Gu Chen accepted Anna's comment and added: "So every time our Chinese children develop some hobbies, they will ask: Can this thing be used as food?"
"And when our Chinese children really take this thing as a hobby, they will say that they eat it all day long."
"Ha ha……"
Hearing this, many Italian police officers were already whispering to each other and laughing. It seemed that the things Gu Chen teased about himself were very fresh and interesting to everyone.
"Wouldn't this limit your development?" an Italian policeman raised his hand and asked Gu Chen.
Gu Chen looked back at him and said with a smile: "You are right. In fact, times are different now. There is an old saying in our country, which is: Three hundred and sixty lines will lead to the number one scholar."
"In fact, parents should not always limit their children's future eating problems to eating from an iron rice bowl."
Pointing at himself, Gu Chen added: "My parents belong to this majority. Their understanding of an iron rice bowl is to eat in one place for a lifetime."
"In my opinion, the real iron rice bowl is not to eat in one place for a lifetime, but to have food to eat anywhere for a lifetime."
"So, as a people's police officer, what I have to do is to continuously polish and improve my skills to help more people in need."
"When you really do these things of serving the people well, your job will not be lost. At that time, the iron rice bowl will become a golden rice bowl, and it will taste much better when you hold it."
"Hahaha……"
There was another burst of laughter in the office.
Everyone originally thought that Gu Chen was a serious person, but when it comes to truth, this young man is actually also a strong person.
Gu Chen, with this kind of personality, is actually quite popular among the Italian police.
Just when everyone was laughing and joking, Mario suddenly looked at the latest picture sent from the computer and couldn't help but smile and said: "Look, it was George who pulled out the image of the plasterer."
Following Officer Mario's gaze, Gu Chen quickly turned his head to look.
But when he saw the profile picture suddenly flashing on the screen, Gu Chen suddenly froze and froze there for a moment.
"What...what's wrong, Gu Chen?" Anna looked at him puzzled.
"How could it be him?" Gu Chen turned back to look at Anna and said, "You and I both know this plasterer."
…
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