Lu Weiwei had actually said everything Gu Chen had to say.

But Gu Chen still knew that if this was the case, then what was the matter with the kidnapping letter?

The kidnapping letter, which had more than a hundred similarities to Yao Xin's mother's handwriting, obviously could not have been completed by a young boy.

There are also basements, which form various god operations.

Not to mention children, even adults may not be able to distinguish clearly after reading it.

If the cause and effect of all this may have been caused by that dragon fruit, but what about afterward?

Yao Gang said that he had been sleeping, which was obviously lying.

Could it be that Xiao Zhengtai's mental quality can be so strong?

accidentally killed his own sister, and he can still show excitement, and seems to be indifferent to the death of his sister Yao Xin?

It seems crazy, doesn't it?"

"Senior Sister Lu. Gu Chen also looked at Lu Weiwei and said what he thought in his heart: "Your previous reasoning was correct, but there are also flaws. ”

"Flawed ...... Flaws?" Lu Weiwei didn't know what to expect.

Gu Chen nodded and said, "The correct reasoning can be based on clues to prove the answer, but there are a few questions here that are completely impossible for Yao Gang to complete." ”

"Is that the kidnapping letter, and the scene in the basement?" Officer Wang quickly answered.

"That's right. Gu Chen walked up to the two of them and continued: "Senior Brother Wang, Senior Sister Lu, I have always had doubts before, that is, Yao Xin's death, and many evidences point to her family. ”

"But it doesn't make sense at all, because there is no motive to kill, so why would the family kill their own cash cow daughter? ”

"Is it because of Yao Gang?" Ms. Lu said.

"That's right. Gu Chen also nodded with satisfaction and said, "It's Yao Gang." ”

"Because Yao Xin's death is likely to be caused by Yao Gang's mistakenly murder, and it is also very likely that Yao Xin's mother wants to protect her son. ”

So after Yao Xin's skull was smashed, she continued to strangle Yao Xin's neck with a rope, creating the illusion of being strangled to death, in order to cover up Yao Gang's sins. ”

"And the flashlight that Yao Gang used, Yao Xin's mother can also clean it up, because children don't understand this, once they leave clues, they are likely to be detected by the police, these are not things that children should understand. ”

"That's right. Officer Wang also agreed with Gu Chen's opinion, and said directly: "This kind of trick of cleaning up traces and camouflaging the scene in the basement is only done by adults, and children don't understand it at all." ”

"And that kidnapping letter. Gu Chen also breathed a sigh of relief at this moment, and said, "Before, I could only use the judgment of who this letter came from. ”

"But now that I don't need to, I can completely conclude that this kidnapping letter must be a play performed by Yao Xin's mother in order to protect her son Yao Gang after moving her daughter into a small basement room. ”

But she never expected that Yao Xin still had signs of life at that time, but it was very weak. ”

As a result, when she strangled Yao Xin's neck with a rope, Yao Xin died of suffocation, which is why Forensic Doctor Liu said that she died of suffocation. ”

"I didn't ...... That's right. I could also hear it, but don't Gu Chen suddenly called it, Forensic Doctor Liu immediately said: "The little girl did die of suffocation, and the previous head injury may be brain dead at most." ”

"That is to say, Yao Xin's death was caused by Yao Gang and his mother?" Officer Wang was shocked, as if he had subverted his three views at the moment.

Seeing that everyone was incredulous, Gu Chen continued: "I can speculate that Yao Xin's mother was in a panic after completing these operations. ”

So she smashed the window to create the illusion of an intruder kidnapping, went back to the living room, and began to compose in her notebook. ”

In order to hide her handwriting, Yao Xin's mother deliberately practiced drafting, destroyed four pieces of scratch paper, and then called the police. ”

Lu Weiwei snapped her fingers and said, "That's right, it should be like this, which can explain why the kidnappers had to make a draft when they wrote the kidnapping letter." ”

Because Yao Xin's mother wanted to hide her handwriting at that time, she used a writing method that she was not very good at writing, but even so, Senior Brother Gu could still find 100 similar places from it. ”

Forensic Doctor Liu also said thoughtfully: "That's right, it is almost impossible to change your handwriting temporarily, because personal habits and handwriting methods are honed for decades, and it is more difficult to change them than to ascend to the sky." ”

After thinking about it, Forensic Doctor Liu said again: "But according to Gu Chen's reasoning, then this Yao Xin's mother is really a terrifying person, she can create this kind of illusion in a short period of time, ordinary people can't do it." ”

"There must be other breakthroughs. Gu Chen was also thinking for a while, and suddenly remembered Forensic Doctor Liu's previous explanation of DNA, so he asked again:

"By the way, Forensic Doctor Liu, you said before that on Yao Xin's pants, you found out if it was Yao Xin's DNA, so whose is it?"

"I'm still asking the assistant to test, and the results should be available soon. Seeing that Gu Chen was too concerned, Forensic Doctor Liu said again:

"But I don't think there will be too many clues, because if it is left by Yao Xin's family, it doesn't mean anything, and if it's the DNA of an outsider, it will be troublesome. ”

Officer Wang pulled the stool and said helplessly: "Then what else can I do? ”

So everyone waited together in the waiting room for nearly an hour, and at this time, the forensic assistant came to forensic doctor Liu with the report.

"How's it going?" asked Forensic Doctor Liu, who took the test report.

The forensic assistant said: "According to our several verifications, the results show that the DNA left on the deceased's pants is not left by her family at all. ”

"Stayed by a stranger?" Lu Weiwei opened her mouth in surprise: "Oh my God, is there anyone else in this?"

"It's over, it's over. Officer Wang was also quite disappointed, feeling that the little sign he had just seen seemed to be extinguished by this damn DNA.

Forensic Doctor Liu also said with a broken head: "It seems that it is not only Yao Xin's family who is involved, but also other accomplices?"

While everyone was hotly discussing, Gu Chen was still leaning against the corner of the wall, carefully recalling the scene picture.

"All the clues basically point to Yao Xin's family, but when Yao Xin was killed, his clothes were messy, but the residual DNA was not Yao Xin's family's, how can this be good?"

Seeing that Forensic Doctor Liu was still confirming with his assistant, Gu Chen sighed and began to think about DNA-related knowledge by using his specialized-level memory.

Gu Chen had a large number of books before, including some books on DNA assertions, and after thinking about a lot of arguments repeatedly, Gu Chen suddenly opened his eyes.

Seeing that Gu Chen was a little abnormal, Lu Weiwei hurriedly walked over and asked him: "Senior Brother Gu, everyone was discussing just now, but you are thinking quietly here, do you have any new discoveries, or a new breakthrough?"

"Is there such a possibility......" Gu Chen suddenly raised his head, looked at everyone in front of him and said, "Maybe we were just misled by the DNA on Yao Xin's pants." ”

"...... Misled?" Officer Wang also became more and more confused the more he listened, and hurriedly asked Gu Chen: "Why did you say that?"

Gu Chen said: "Because the DNA of this stranger is very likely to be the DNA of a clothing manufacturer, is it not possible?"

"Huh?" was also reminded by Gu Chenyi, and Forensic Doctor Liu immediately had a flash of inspiration and said, "It's very possible, maybe it's really the DNA of a clothing manufacturer." ”

"But ......" Forensic Doctor Liu turned his head to look at Gu Chen and continued: "But everything has to be verified, if we can't prove that this stranger's DNA has nothing to do with the case, then we will have a lot of work." ”

"It's easy to do. It is also considering that Forensic Doctor Liu has always been known for his technology, and any possible conditions need to be demonstrated, so Gu Chen said directly: "Otherwise, let's buy a few clothes at random and see if there will be some strangers' DNA left on these new clothes." ”

"Well, I think it's okay. As soon as Lu Weiwei heard Gu Chen's suggestion, she was the first to agree: "It's just right, I'm going to buy a few coats, and I'll leave this job to me." ”

"That's fine. Seeing that Lu Weiwei took the initiative to ask for help, Officer Wang immediately pointed to the street outside the window and said:

"Turn right from the city bureau, turn left and drive all the way to the business circle, you let Gu Chen drive you over, it's almost fine, the key is to verify Gu Chen's statement, don't go shopping properly." ”

"Look at what you said. Lu Weiwei also smiled: "Of course I made a quick decision, and Forensic Doctor Liu still needs the test results, don't worry, I'll be back in a while." ”

Suddenly, buying clothes can become a task, and Lu Weiwei has met it for the first time.

However, those bad habits of shopping and shopping, Lu Weiwei basically does not touch.

Also in a hurry, Gu Chen drove directly to the side of the road in the police car.

The two of them were wearing police uniforms at the same time, and as soon as they walked into a sports brand store, they instantly made the clerk envious.

Several female clerks suddenly whispered.

"Oh my God, driving a police car to shop, this cop is so chic. ”

"Is this considered a private use of the bus? The two of them are still wearing police uniforms, so they should be at work at this time, right?"

"Maybe it's just passing by, by the way, buy a few clothes for a business trip, right? Didn't there be a lot of salesmen who traveled on business before, and came to our store to buy clothes? Many of them went to the north to buy some thick coats temporarily. ”

"Anyway, my attention is on that handsome policeman, does what you say matter? It doesn't seem to matter. ”

"Haha, then I'll have to go over and say hello, maybe I can ask for the phone number as a member. ”

A tall female clerk suddenly straightened her hair in front of the mirror and came directly to Gu Chen and Lu Weiwei.

"Are you two buying clothes, couple clothes or what?" asked the female clerk.

"Oh no, I don't buy it, she does. Gu Chen pointed at Lu Weiwei and said.

The corners of the female clerk's mouth rose, and she turned around and asked Lu Weiwei: "Then may I ask this female police officer, what kind of clothes do you want to buy? We have down jackets, casual jackets, and sportswear ...... here."

"Just my size. Before the female clerk could finish speaking, Lu Weiwei directly interjected: "This, this and this, pack it for me." ”

"Huh?" The female clerk was stunned for a moment, she has been selling clothes for so many years, and she has never seen a girl buy clothes like this, just glance at it and pack it, and even buy three pieces at a time?

This is similar to those female customers I met before, if every female customer can shop like Lu Weiwei, I feel that all the clerks can wake up with a smile every day when they sleep.

"You...... You can get a membership card? The membership card is discounted, and then there are points for buying things, and the points can be used to offset a lot of discounts? Let me help you fill out a form. The female clerk looked at Lu Weiwei with bright eyes.

Lu Weiwei waved her hand: "No need, wrap it up for me directly, I'm in a hurry." ”

The female clerk was stunned again, and hurriedly asked other clerks to help with the clothes.

took Lu Weiwei and carried three bags of clothes, and didn't even ask for an invoice, so she followed Gu Chen and drove away, leaving only the clerk with chicken feathers.

......

......

Technical Section of the Municipal Bureau.

Everyone was still waiting, and Officer Wang even played with a few handfuls of pesticides.

"The results are in. Forensic Doctor Liu walked out excitedly and came to everyone.

Suddenly, Gu Chen, Lu Weiwei and Officer Wang, who were sitting in the waiting room, immediately stood up and came to Forensic Doctor Liu.

"How is it?" Gu Chen asked.

Forensic Doctor Liu smiled: "You really said it." ”

"That's right?" Gu Chen also looked at Lu Weiwei beside him.

Forensic Doctor Liu said: "These clothes you bought at random, each piece of clothing has at least one or more unfamiliar DNA on it. ”

"That means that the unfamiliar DNA left on Yao Xin's pants does not affect the investigation of the case?"

"So to speak. Forensic Doctor Liu also nodded.

Gu Chen snapped his fingers and said, "That's right, it can be seen that the suspicion is still on the Yao family." ”

"If it is really as I reasoned, then Yao Gang should be the murderer, and his mother is an accomplice, directing and acting in this play together. ”

"But......" Officer Wang hesitated a little and continued to ask Gu Chen: "But Gu Chen, have you ever thought that their family is lying." ”

"Yes, but there are flaws in lying. Gu Chen did agree with Officer Wang's statement.

But at the same time, it cannot be denied that it seems difficult to judge that adults lie, but it seems that it is not so easy for children to lie.

When Gu Chen asked Xiao Zhengtai Yao Gang, Yao Gang would glance at his mother every time he answered, which showed that Yao Gang was done under the prompting of his mother's eyes.

Lu Weiwei said thoughtfully: "If that's the case, then Yao Xin's mother wrote the kidnapping letter after directing and acting, and then called the police, isn't she afraid at all that she said the wrong thing because she was nervous?"

was also suddenly reminded by Lu Weiwei, Gu Chen seemed to think of something.

"Senior Sister Lu. Gu Chen looked at Lu Weiwei.

Lu Weiwei looked at herself inexplicably, then touched her face and said, "Senior Brother Gu, I'm ...... Do I have anything on my face?"

"You're beautiful, but that's not what I'm talking about. Gu Chen said.

"No...... Isn't this?" originally thought that Gu Chen was praising himself, but after taking him and shifting the topic to other aspects, he asked again: "You didn't say this, which one did you mean?"

"What you just said reminded me. After Gu Chen walked back and forth twice, he said to everyone: "Yao Xin's mother suddenly encountered this kind of thing, even if she is thoughtful and resistant, how would ordinary people react at that time?"

Facing Gu Chen's question, everyone looked at each other, and then turned their eyes to Gu Chen.

Lu Weiwei said: "That must be sad, my daughter is gone, and the murderer turned out to be my son, can this not be sad? The palms and backs of the hands are full of meat." ”

"That's right. Forensic Doctor Liu also answered: "If this is the case, as a mother, on the one hand, she has to endure her grief, fake an accident scene at home, explain her son, and write a kidnapping letter herself, that's all, normal people will definitely not be able to stand it." ”

"So, Gu Chen, what do you mean?" Officer Wang seemed to notice that Gu Chen had an idea, so he hurriedly asked him.

"I agree with everyone. Gu Chen also looked at everyone, and then said: "Such a mother, if she has to endure her grief and deal with so many things in a very short time, will she not make any mistakes at all?

The scene suddenly fell silent, and everyone looked at each other again, and then shook their heads.

Lu Weiwei took the initiative to say: "That's right, there will definitely be flaws, what about Senior Brother Gu's thoughts?"

"I want to listen to the original sound of Yao Xin's mother calling the police first. Gu Chen said.

Officer Wang frowned suddenly: "This has to be retrieved from the 110 alarm center." ”

"Senior Brother Wang. Gu Chen smiled at him and said, "Aren't we in the city bureau now?" ”

Officer Wang also patted his head: "Yes, let's be in the city bureau now, okay, you wait here first, I'll go find an acquaintance and ask them to help me find out the recording of Yao Xin's mother's call to the police at that time." ”

After saying this, Officer Wang turned around and left.

After all, he has a wide network in the city bureau, mainly because he often followed Zhao Guozhi to this office before, so the police of the city bureau also looked at Zhao Guozhi's face and befriended Officer Wang.

Therefore, Officer Wang knows a lot of people in the city bureau, and he can say hello casually, and many things at work can be solved quickly.

It didn't take long for Officer Wang to return to the technical section.

"How is it?" Gu Chen asked.

Officer Wang took out his mobile phone and shook it in front of Gu Chen: "I have downloaded the audio of the recording, let's go to the monitoring room of the technical department together to listen to it, I heard that Forensic Doctor Liu can enhance the technology here." ”

Forensic Doctor Liu also smiled and said: "Of course, of course, I have this technology here, which can capture some surrounding movements according to the size of the noise on the scene." ”

Seeing that everyone was waiting, Forensic Doctor Liu, who had already gone through several setbacks, did not dare to slack off, and said directly: "Come with me, and I will give you everything you want today." ”

"Thank you, Forensic Doctor Liu. After everyone thanked them in unison, a group of people all came to the monitoring room.

After everyone put on the headphones, they began to listen to the original sound of Yao Xin's mother's alarm phone after the technology was enhanced.

is also the same as everyone imagined, there was no problem with the previous call, it was all Yao Xin's mother's crying, as well as the explanation of the specific situation.

But at the moment of hanging up the phone, there seemed to be a weak echo.

......