I am a super cop

Chapter 452 Echo

Lu Weiwei had actually said all that Gu Chen wanted to say.

But Gu Chen is still clear, if this is the truth, what about the kidnapping letter?

The kidnapping letter with more than 100 handwritings similar to Yao Xin's mother is obviously impossible for a little boy to complete.

There are also basements, forming various god operations.

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

If the cause and effect of all this may be caused by the dragon fruit, but what about after?

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

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

Killed his own sister by accident, but still showed excitement, as if he was indifferent to the death of his sister Yao Xin?
This seems crazy doesn't it? "

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

"Flaws... flaws?" Lu Weiwei didn't know what to do.

Gu Chen nodded and said: "Correct reasonable reasoning can demonstrate the answer based on clues, but there are a few questions here, which are completely impossible for Yao Gang to complete."

"Is it the kidnapping letter, and the disguise in the basement?" Police Officer Wang quickly answered.

"That's right." Gu Chen walked in front of the two of them and continued, "Senior Brother Wang, Senior Sister Lu, I have always had doubts about Yao Xin's death, and many evidences point to her family."

"But it doesn't make sense at all, why would a family kill their cash cow daughter because there was no motive for killing? But it's different now."

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

"That's right." Gu Chen also nodded in relief, and said, "It's Yao Gang."

"Because of Yao Xin's death, it is very likely that Yao Gang killed someone by mistake, and it is also very likely that Yao Xin's mother wanted 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, so as to cover up Yao Gang's crime."

"Besides, Yao Xin's mother can also clean up the flashlights that Yao just used, because children don't understand these things. Once they leave clues, they may be noticed by the police. These are not things 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 disguising the scene in the basement can only be done by adults, and children don't understand it at all."

"And the kidnapping letter." Gu Chen also breathed a sigh of relief at the moment, and said, "Before, I could only make a [-]/[-] judgment on who wrote this letter."

"But I don't need it now. I can be sure that this kidnapping letter must be a play by Yao Xin's mother to protect her son Yao Gang after she moved her daughter into a small room in the basement."

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

"It turned out that when she strangled Yao Xin's neck with a rope, Yao Xin suffocated to death, which is why Liu's forensic doctor said it was suffocation."

"No... That's right." She was also listening ecstatically, but Gu Chen suddenly called her name. Liu Forensic Doctor immediately said, "The little girl was indeed suffocated to death. The severe head injury before may be brain death at most."

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

Seeing that everyone couldn't believe it, Gu Chen continued: "I can infer that Yao Xin's mother was flustered after completing these operations."

"So she smashed the window, created the illusion of an intruder kidnapping, went back to the living room, and started writing in a notebook."

"In order to conceal her handwriting, Yao Xin's mother practiced drafting on purpose, destroyed four pieces of draft paper, and then called the police."

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

"Because Yao Xin's mother deliberately concealed her handwriting at the time, she used a writing method that she was not very good at writing, but even so, Gu Shidi could still find 100 similar places."

Liu Fayi also thoughtfully said: "That's right, it is almost impossible to temporarily change your handwriting, because personal habits and handwriting are honed over decades. Just relying on temporary changes, this is more difficult than reaching the sky."

After thinking for a while, Forensic Doctor Liu said, "However, based on the reasoning of Weichen, then this Yao Xin's mother is really a terrifying person. She can create such an illusion in a short period of time, which ordinary people cannot do."

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

"By the way, Forensic Doctor Liu, you said earlier that Yao Xin's DNA was found on Yao Xin's pants. Whose is it?"

"It's still being tested by the assistant, and the results should be available soon." Seeing that Gu Chen was too concerned, Forensic Liu said again:

"However, 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. If it is the DNA of an outsider, it will be troublesome."

Officer Wang pulled the stool, spread his hands helplessly and said, "Then what else can we do? We can only continue to wait."

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

"How is it?" Forensic Doctor Liu asked after receiving the test report.

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

"It was left by a stranger?" Lu Weiwei opened her mouth wide in surprise: "My God, are there other people among them?"

"It's over, it's over." Police Officer Wang was also quite disappointed, feeling that the little signs he saw just now seemed to be wiped out by this damn DNA.

Forensic Liu was also troubled and said, "It seems that not only Yao Xin's family members were involved, but also other accomplices?"

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

"All the clues basically point to Yao Xin's family. However, when Yao Xin was killed, his clothes were in a mess, but the DNA left behind did not belong to Yao Xin's family. What should we do?"

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

Gu Chen had read a lot of books before, including some books on DNA theory. After thinking about a lot of arguments, Gu Chen suddenly opened his eyes.

Seeing that Gu Chen was acting abnormal, Lu Weiwei hurried over to him and asked him, "Junior Brother Gu, everyone was discussing just now, but you were the only one who was thinking quietly here, did you have any new discoveries, or new breakthroughs?"

"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 by..." Police officer Wang also became more and more confused as he listened, and hurriedly asked Gu Chen, "Why do you say that?"

Gu Chen said: "Because this stranger's DNA is very likely to be the DNA of a garment manufacturer, isn't there such a possibility?"

"Eh?" also reminded by Gu Chen, Forensic Doctor Liu immediately had a flash of inspiration and said, "It's very possible, maybe it's really the DNA of a clothes manufacturer."

"However..." Forensic Doctor Liu turned to look at Gu Chen, and continued: "But everything needs to be verified. If we can't prove that this stranger's DNA has nothing to do with the case, then our workload will be heavy."

"It's easy." Considering that Liu Fayi is known for his skills, any possible conditions need to be demonstrated, so Gu Chen said directly: "Otherwise, let's buy a few random clothes and look at the new clothes. Will there be some DNA left over from strangers?"

"Hey, I think it will work." Upon hearing Gu Chen's suggestion, Lu Weiwei was the first to agree, "It's just right, I'm going to buy a few coats, so leave this job to me."

"That's fine." Seeing that Lu Weiwei volunteered, Police Officer Wang immediately pointed to the street outside the window and said:

"Turn right from the city bureau, and turn left and drive straight to the commercial district. You can ask Gu Chen to drive you there. It's almost enough. The key is to verify Gu Chen's statement. Don't take it seriously."

"Look at what you said." Lu Weiwei also smiled: "Of course I made a quick decision. Liu's forensic doctor still needs to test the results. Don't worry, I'll be back in a while."

Suddenly buying clothes can become a task, this is the first time Lu Weiwei has met.

However, Lu Weiwei basically didn't care about those bad habits of shopping.

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

The two were wearing police uniforms at the same time, and walked into a sports brand store together, instantly making the store staff envious.

Several female shop assistants immediately began to discuss in a low voice.

"My God, driving a police car to shop, this policeman is so chic."

"Does this count as private use of the bus? The two of them are still wearing police uniforms. They should be going to work at this time, right?"

"Maybe I just passed by and bought a few clothes for business trip, right? Didn't many salesmen on business trips come 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. Is what you said important? It doesn't seem to be important."

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

A tall female shop assistant straightened her hair in front of the mirror, and then came directly in front of Gu Chen and Lu Weiwei.

"Excuse me, are you two shopping for clothes? Couple clothes or something?" asked the female clerk.

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

The female clerk raised her mouth, turned around and asked Lu Weiwei, "Then, what kind of clothes do you want to buy, this female police officer? We have down jackets, casual jackets, and sports suits..."

"Just follow my body size." Before the female shop assistant finished speaking, Lu Weiwei interrupted directly: "This one, this one and this one, pack it for me."

"Huh?" The female clerk was stunned for a moment. After selling clothes for so many years, she has never seen a girl buy clothes like this. She just takes a glance and packs them up, and even buys three pieces at a time?

This is different from the female customers I met before. If every female customer can shop as boldly as Lu Weiwei, it feels like all the shop assistants can wake up with a smile every day.

"You... Can you get a membership card? The membership card is discounted, and you will get points for buying things later. The points can be used for a lot of discounts. Shall I fill out a form for you?" The female clerk looked at Lu Weiwei with bright eyes.

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

The female clerk was taken aback again, and quickly asked other clerks to help with the clothes.

As a result, Lu Weiwei carried three bags of clothes, didn't even ask for an invoice, and drove away with Gu Chen, leaving only the clerk a mess.

……

……

City Council Technology Division.

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

"The result is out." Forensic Liu came out quite excitedly and came in front of everyone.

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

"How is it?" Gu Chen asked.

Fayi Liu smiled: "You really hit the mark."

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

Forensic Doctor Liu said again: "The few clothes you bought at random, each of them has at least one or more strange DNAs on it."

"That is to say, the strange DNA left on Yao Xin's pants does not affect the investigation of the case?"

"You can say that." Forensic Liu also nodded.

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

"If it's as I reasoned, then Yao Gang should be the murderer, and his mother is the accomplice. They directed and acted in this play together."

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

"That's right, but lying also has flaws." Gu Chen did agree with Officer Wang's words.

But at the same time, it is undeniable that it seems difficult for an adult to tell a lie, but it seems not so easy for a child to lie.

When Gu Chen asked about Yao Gang, the young lady, Yao Gang would always look at his mother when he answered, so it can be seen that Yao Gang did it under the prompting of his mother's eyes.

Lu Weiwei said thoughtfully: "If this is the case, then after Yao Xin's mother wrote the kidnapping letter and called the police after she directed and acted, wouldn't she be afraid at all that she would say the wrong thing because of nervousness? "

It was also suddenly reminded by Lu Weiwei that Gu Chen seemed to have thought of something.

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

Lu Weiwei looked at herself inexplicably, then touched her face and said, "Junior Brother Gu, I... Is there something on my face?"

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

"No... not this?" Originally, he thought that Gu Chen was praising himself, but then he changed the topic to other aspects, so he asked again: "You didn't mean this, but which one did you mean?"

"You reminded me of what you said just now." After walking back and forth twice, Gu Chen said to everyone: "Yao Xin's mother suddenly encountered such a thing, even if she is thoughtful and resistant, what would ordinary people do at that time?" reaction?"

Facing Gu Chen's question, everyone looked at each other in blank dismay, and then turned their attention to Gu Chen.

Lu Weiwei said: "It must be sad. The daughter is gone, and the murderer is the son. Isn't this sad? The palms and backs of the hands are all flesh."

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

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

"I agree with everyone's opinions." Gu Chen also looked at everyone, and said again: "It is such a mother who has to endure grief and deal with so many things in a very short period of time. Can’t go wrong? Can it be seamless?”

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

Lu Weiwei took the initiative: "That's right, there must be flaws, so what is Gu's thinking?"

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

Officer Wang frowned immediately: "This has to be obtained from the 110 call center."

"Senior Brother Wang." Gu Chen smiled at him, and said, "Aren't we in the city bureau now? It's close to the water."

Officer Wang also slapped his head: "That's right, we're in the city bureau now, okay, you wait here first, I'll go find my acquaintances, and ask them to help me find the recording of Yao Xin's mother's call to the police at that time."

After saying this, Officer Wang turned his head and left.

After all, I have a lot of contacts in the Municipal Bureau, mainly because I often followed Zhao Guozhi to the office before, so the police in the Municipal Bureau also looked at Zhao Guozhi's face and made friends with Police Officer Wang.

Therefore, Police Officer Wang knew a lot of people in the city bureau, and he could say hello casually, and many work matters could be resolved quickly.

Not long after, Officer Wang returned to the technical department.

"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 recording, let's go to the monitoring room of the technical department to listen to it. I heard that Liu Forensic Doctor can enhance the technology here."

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

Seeing that everyone was waiting, Liu Fayi did not dare to slack off after many twists and turns, and said directly: "Come with me, and I will give you everything you want today."

"Thank you forensic doctor Liu." After everyone thanked in unison, a group of people came to the monitoring room.

After everyone put on the earphones, they began to listen to the original sound of Yao Xin's mother's alarm call that had been enhanced by technology.

As everyone imagined, there were no problems in the previous calls. They were all crying from Yao Xin's mother and explaining the specific situation.

But the moment he hung up the phone, there seemed to be a weak echo.

……

(End of this chapter)