Let you give a gift to the girlfriend of the police flower, and you give a wanted criminal

Jiang Yuxin said in astonishment: "Two more stabs, of course he will be stabbed to death!"

Su Yan broke his fingers and said, "That's right. Since the murderer can stab two people to death without changing his face, how can he watch a positive person not make up the knife?"

"So the correct killing process should be that the murderer first stabbed Ma Qifu on the sofa. Since Ma Qifu's shout alarmed Xin Yuelan, the murderer saw Xin Yuelan coming out of the bedroom, ran over and stabbed her, and then quickly left the scene."

"` ~ Ma Qifu, who the murderer thought was dead, was actually just in a coma. After the murderer left, the comatose Ma Qifu woke up, stood up, and walked towards the gate with great effort. When he reached the gate, he was exhausted, took a rest, and then walked out in one breath The corridor, fell outside the corridor. And because of his serious injuries, he has lost the strength to call for help."

"That's the only way to explain why the neighbors didn't hear anything flying, and also explain the blood and footprints here."

"As for the miracle of police officer Chen's husband saving his wife, it doesn't conform to the state of blood type 533, nor does it conform to logical thinking!"

Chen Hei opened his mouth several times, but he didn't make a sound, obviously unable to make a sound.

An Shan listened to Su Yan's reasoning, and nodded his head in admiration. Knowing it was one thing, being able to use it (Zhao Lihao) was another, and being able to use it skillfully and confidently was another.

After listening to Su Yan's reasoning, combined with the shape of the blood at the scene, she found that the whole reasoning was perfect.

Su Yan frowned and said, "But this doesn't match Ma Qifu's confession at all!"

Su Yan smiled and said, "Do you know why physical evidence is more convincing than personal evidence? Because human evidence is often easier to lie than physical evidence."

Jiang Yuyu was also very puzzled, and asked: "But someone is going to kill him. Why did he lie?" Seeing Su Yan's expression, she knew that Su Yan should have a judgment in his heart, and asked quickly: "Su Yan, Su Yan Officer Yan..."

Others also cast their probing gazes.

Su Yan looked at everyone's expressions and smiled, "Don't worry everyone. The blood is only one aspect. Ma Qifu not only lied, but more than one lie. Not one person came to his house that night, but two people!" word.

Chapter 282 Focus on Analysis of the Murder Weapon

"Ok?"

Su Yan's words simply overturned their cognition.Where the hell is this coming from?

Su Yan looked at everyone with surprise, suspicion, and even questioning eyes, and said with a smile: "Let's start with the analysis of Xin Yuelan's body."

The forensic doctor who was in charge of Xin Yuelan's autopsy first said inexplicably, "The situation of Xin Yuelan's body is very simple. A single-blade stabbing instrument pierced the intercostal space, causing the liver to rupture, puncturing the artery at the hilum of the liver, causing hemoperitoneum, and finally died. It's of no value."

Su Yan smiled and said, "There is nothing wrong with the cause of death. What I want to talk about is the process."

As soon as An Shan heard Su Yan's speech, she immediately picked up the autopsy report made by Su Yan who had just passed by, and Su Yan's voice rang out.

"There was a bleeding area at the junction of Yueya Lan's gums and lips, and there were bleeding marks on both sides of her neck. It shows that Xin Yuelan was pressed on her nose and mouth before she died, and her neck was strangled."

The forensic doctor said, "Officer Su Yan, but there is no mechanical asphyxia in her body. What's the point?"

Su Yan didn't answer him, but just posted a photo, and there were some small crescent scars on Xin Yuelan's neck.He said: "These 753 scars are marks left by nails. The fingernails on the left side of the neck indicate that the murderer covered Xin Yuelan's mouth with his left hand and strangled Xin Yuelan's neck with his right hand.

After reading the materials, An Shan couldn't help but say, "Officer Su Yan, you really shocked me. You are terrible. If you hadn't reminded me, I think anyone would have overlooked this important issue. Are you from Su Yan's family?" At this moment, Anshan's mind was full of twists and turns, and he couldn't figure it out!

Su Yanxiao smiled, but did not speak.He found that this Anshan level is good.At least everyone at the scene was still in a daze.I don't know what he means now.

He released a photo of the abdominal wound and said, "According to the direction of the abdominal wound, the murderer was holding a knife in his right hand. And during the incident, we can be sure that the murderer stabbed Ma Qifu first and saw Xin Yuelan coming out of the bedroom. Stabbed it too."

"Then how did she cover Xin Yuelan's mouth with her left hand, strangle her neck with her right hand, and then stab his knife into his abdomen with the other hand? Does he have three hands?"

Everyone was stunned!

"Oh, I'll go, yes! Why didn't I think of such a simple truth?"

Chen Lengsheng said, "He was afraid that the other party would shout, so after stabbing him, he put his hands around the neck of the deceased."

Su Yan said with a smile: "Then cover your mouth with one hand and stab it a few more times with the other hand. Do you think the murderer will put down the knife at this time? Moreover, I found the reflection of life in Lanhua's back muscle layer .It is also a proof of her resistance when she was squeezed against the door after being covered. In addition, the neighbors nearby did not hear anything. Then there is only one explanation."

"Xin Yuelan heard Ma Qifu's voice, opened the door, saw this scene, and wanted to yell. Another person quickly covered her mouth. Then the real murderer saw the unconscious Ma Qifu, came over with a dagger, and stabbed her with a knife. Xin Yuelan, and then they left in a hurry."

"And the person covering Xin Yuelan should be a woman. First, according to her strength, the hyoid bone is not broken, and the angle of the hyoid bone is normal. Second, look at the nail print. It is deep and narrow. It means long nails. "

They looked at each other and felt that what Su Yan said made sense.

As for Chen, it was obviously nonsense.A ruthless murderer, after stabbing the other party, let go of his hand and strangled his neck?Isn't this shit?Take a few more knives and run away when you have time.

The more they listened, the more excited they became.If they didn't know about Su Yan's temper, they would have to turn on the phone to record.Right now I can only work hard.These are valuable experiences.

Su Yan continued, "Let's take a look at Ma Qifu's situation. The murderer stabbed five times in total. All the wounds were concentrated on the left rib, and the distance between each two wounds was no more than fifteen centimeters. This wound alone proves that Ma Qifu ( aebc) is absolutely lying. The first scene of the criminal must be the sofa, not the door."

Everyone was at a loss again, obviously unable to understand what this wound had to do with this.

Su Yan found someone who was about the same height as Ma Qifu and said: "First, Ma Qifu is 176cm tall. If I opened the door and stabbed him with a dagger, where would I stab him? It is easy to use force. It would be the abdomen. But why would it be in the abdomen? Into a quarter of the ribs? Combined with the situation where the knife penetrated Kakuto, if both sides were standing, and the murderer stabbed the dagger obliquely upwards into a quarter of the ribs, then the height of the murderer would exceed the giant’s 2m.”

"Officer Chen didn't say that just now, because he couldn't figure it out himself. A two-meter-tall giant is so eye-catching, how could no one notice it?"

Xi Chuan was taken aback, Chen lowered his head and did not speak.This is what he has never understood.

"Second, the murderer made a total of five stabs, four of which were blocked by the sternum and did not penetrate. Only one stab was fatal, which means that Ma Qifu did not lose his resistance in the first four stabs, so the wounds were too concentrated. Why did he Do not close the door or dodge?"

"The only explanation is that he was sitting on the sofa side by side with the murderer at the same time. The murderer suddenly took out a knife and stabbed him. He had no room to dodge, so he had to curl up subconsciously to protect his head, so that he was stabbed five times in a row. Middle left rib."

"I see!"

When they heard it, they suddenly realized, and were stunned by a series of reasoning and analysis.Obviously, such a large amount of criminal investigation skills is really hard to come by.Especially the way Jiang Muyu looked at Su Yan was full of wisdom and confidence.

A crisp voice came, "Officer Su Yan, wonderful!"

She had already quietly turned on the recording function, and she found that Su Yan was really powerful.Compared with Su Yan's reasoning, Chen's reasoning is simply nonsense.

And an excellent case reasoning process is also a very good learning material for the police officer himself.At this moment, An Shan already regarded Su Yan as a person of a higher level.

Su Yan looked at the crowd and continued, "Alright, let's focus on analyzing the murder weapon.

"The wounds of the two deceased were of the same shape, indicating that there was only one murder weapon, a sharp dagger with a single edge, three centimeters wide and ten centimeters long, and an uncontrolled knife."

"Other than the four stabs to the ribs, the really deadly one was just between the ribs and into the heart. On the edged side, all the ribs were cut away, which means the knife was sharp enough to Cut off the ribs. It's very sharp, which of course means the killer was strong."

"Most importantly, it can be proven that the knife had no hand guard, based on the marks on the skin around the fatal knife sore."

Su Yan asked puzzledly, "Officer Su Yan, ordinary guards don't have uncontrolled knives in their hands. What's the point?".

Chapter 283 The meaning behind the lie

Su Yan made a fool of himself and said, "I'll explain this later. Let's analyze the types of knives first."

This time, An Shan spoke.She asked suspiciously: "Officer Su Yan, can you tell what kind of knife it is from the sore?" Although she is not proficient in forensic science, as a gold police officer, her reasoning ability combined with the autopsy report is very good.

Su Yan explained: "Officer An, one hundred sores alone will definitely not work, but combined with the traces of the scene, it is still possible. Since the crime took place on the sofa, it means that the murderer entered ~ Ma Qifu's home."

"First, there is no trace of a fight in the house, and there is no sign that the door lock has been pried open, indicating that the murderer was invited into the house by Ma Qifu, so the knife carried by the murderer must be easy-to hide."

"Otherwise, the murderer is holding a knife, and it is absolutely impossible for Ma Qifu to let him into the living room. Da Su Yantian has almost no clothes and pockets. Since he can hide such a long knife, it means that the knife must be foldable. A knife that cannot be folded, Put it in your pocket, won't you hurt yourself-?"

They nodded.

Su Yan continued: "Secondly, the knife must quickly change from the folded state to the straight state. Ma Qifu's body, especially his arms, did not show any signs of resistance, indicating that the murderer took out the knife, straightened the blade, and then Stabbed him. Ma Qifu didn't react. The speed is very fast, and it would be difficult to do it with an ordinary fruit knife."

"The third is the direction of the wound."

Su Yan took out a photo of Ma Qifu's window and said: "All the wounds are sharp at the top and blunt at the bottom. That is to say, when the murderer held the knife, the blade was facing upwards, and the blade was facing the tiger's mouth, which did not conform to ordinary people's habit of holding a knife. Hold the knife, with the blade facing downwards, facing your four fingers, and you will feel safe again."

"Combining these three points, we can speculate that the knife is a switchblade. Because the blade of the switchblade pops out of the handle when the button is pressed."

"So the killer presses the button, lets the blade pop out between the thumb and the four fingers, and then just grabs the knife and stabs it. Because the blade is pointing up."

After he finished speaking, the live broadcaster directly released an image, that is, a person holding a switchblade, pressing the button and then holding the handle directly, so the blade is facing the tiger's mouth.

Until now, everyone showed expressions of sudden realization.

An Shan showed a trace of eagerness, and asked softly: "Officer Su Yan, please continue your reasoning!"

Su Yansheng said: "So the murder weapon was a short switchblade with a blade length of 10 centimeters and a handle length of 10 centimeters. This is very important. Just now I didn't say that this knife can cut ribs, which means it is very sharp."

"There must have been a lot of people at the scene who wanted a knife, so a short, sharp switchblade without a guard. The killer gripped the handle of the knife and stabbed hard, stabbing four times in the ribs. The more anxious he was, the harder he stabbed. .So what happens?"

They listened to Su Yan's words and thought about it.

With a bang, Su Yan slapped the table with his palm, stood up and shouted excitedly, "I think, with such a strong impact force, plus the short handle of the switchblade and no hand guard, this switchblade will definitely It slipped in his hand. Such a short knife, with such a sharp edge, that a single stroke of the dagger would cut off the murderer's right hand."

Su Yan smiled and said, "That's right. And because the blade is upward, the cut will be at the tiger's mouth. There are rich blood vessels here, and it is impossible to stop the bleeding in a short time. Therefore, there will definitely be the blood of the dead at the scene, and the periphery needs to be re-examined. .”

"Yesterday your investigation was mainly to find witnesses and murder weapons, but you didn't pay attention to the blood on the ground."

After hearing this, everyone understands.

Wang Mian shouted excitedly, "That is to say, if you find the blood, you can find the dNA. If this person has a criminal record, you all go find the murderer!"

Everyone looked at Su Yan with admiration.Unexpectedly, after two days of investigation, they did not find any clues to the case.After one night, Su Yan discovered so many things.

Su Yan said to him, "I just sent someone to re-investigate!" Then, in front of Chen Ci, I called the police at the scene, took the blood test kits, and directly searched the blood around the community.

Obviously, Chen Ci has been left behind by him at this moment.As for the police officer's verdict, is it worth comparing?Even if Su Yan Anshan didn't speak now, Zhan Peng knew that Su Yan had won.The two are not of the same class at all.

Compared with the arrogant Chen Ci, Su Yan is obviously more liked by everyone.

Chen said to him, "Su Yan, you don't know what's good for you!" When he watched Su Yan's behavior, his face almost darkened.Especially this kind of behavior, An Shan did not stop it.He is not as obvious as Su Yan.

0 ···Seeking flowers···

Although he now knows that he is not as good as Su Yan.So many people were slapped in the face, it was too ugly.Especially the female forensic doctor, Hao Yali, who was fascinated by him, looked at Su Yan with admiration, and had no strength to be affectionate to him at all.

Although he has no shortage of women, the feeling of being poached in front of him is really disgusting!

Su Yan looked at Su Yan and said, "Okay, we can continue to analyze this case!"

Su Yan asked in surprise, "What else?"

The eyes of the others also showed surprise, and they felt that this clueless case was not far from being solved.

An Shan persuaded again: "Officer Su Yan, start reasoning!"

 …  

Su Yan nodded and said, "The inference just now is mainly the first step of reasoning through the corpse and the blood at the scene. It can only help us find the murderer's DNA. If the murderer has no criminal record, then in a city with a population of tens of millions, Trying to find two people is like finding a needle in a haystack."

"So the following is the core of the reasoning. Why did Ma Qifu lie? What is the meaning behind the lie? What is the identity of the murderer?"

The person who had just closed the book opened it again.Only Jiang Muyu, who was familiar with Su Yan's character, didn't move, but put his hands on his cheeks and looked at Su Yan ecstatically.She found that she seemed to really like Su Yan.

"What should I do? One year at most, but Su Yan's status seems to be really ordinary. Do we have a chance? Unless Su Yan can become a platinum police officer, the clan will not agree. But why? I must be exchange of interests."

Jiang Yu couldn't help feeling depressed for a few more minutes.Although Su Yan is very powerful, he became a platinum police officer within a year.He'd never heard of it, even in the days of genius police officers, unless it was

Thinking of the legend, Jiang Yuxin shook her head helplessly.Obviously impossible.That is beyond the reach of man except God!

Su Yan glanced at Jiang Muyu strangely, Jiang Muyu's expression changed drastically, he shook his head, gave up the bag of Wuliangye and Ruanzhonghua, and said: "Although the principal of the primary school is also the principal, he is fundamentally different from the principal. The principal is affiliated with the Education Bureau, and the vice principal And the teacher is attached to the school, and the benefits are much worse." Ding.

Chapter 284 Prospect and Reputation

"The average salary of primary school principals is between 5000 and 10000. The salary of the deputy principal will be lower. Of course, I can't afford Ruanzhonghua and Wuliangye. Of course there will be gray income, but since it is always shady, that is to say, he will not be blatant. Smoking Zhonghua Tobacco Wuliangye! These two bottles of wine and a pack of cigarettes were brought by someone else, the murderer!"

"Why the murderer? Could it be someone else?" Su Yan asked.

Su Yan smiled and said: "The evidence is not written in your investigation records. A large amount of high-end tobacco and alcohol were found in the room next to Ma Qifu's bedroom, which means that all tobacco and alcohol gift money will be collected in that room. It was about 9 o'clock in the evening 40 minutes, it's almost time to rest. I have to go to work the next day.

If it was a gift from someone else, Ma Qifu would have put it in that room long ago.How can "Seven Five Three" be placed in such a conspicuous place that people can see it as soon as they come in?So the only possibility is that it has just been brought and has not been released yet. "

Su Yan was taken aback for a moment, and smiled sarcastically.Said: "Haha, I don't bother to think about it with Police Officer Su Yan!" He asked directly: "What does this gift mean? Is it the parents?" After all, it is usually the parents who give gifts to the vice principal.

"That's right, it's the parents. One of the two murderers is a parent who knows Ma Qifu very well!"

Everyone was taken aback for a moment, they didn't expect Su Yan to confirm Su Yan's guess.Others didn't bother to ask, and they couldn't figure it out anyway, so they put it on record.

Seeing this, he said sourly: "Officer Su Yan, your reasoning doesn't always rely on guesswork, so it sounds amazing. The gift must be from your parents, but can't you be friends? With a familiar parent? "

This time, before Su Yan could speak, An Shan spoke.She said unhappily: "Officer Chen, please don't interrupt Officer Su Yan's reasoning all the time. Even if you lose, you must maintain the basic qualities of a police officer and don't embarrass the teacher!"

Chen was so angry that he almost vomited blood.Before Su Yan could reason, An Shan had already confirmed the defeat.What a shame.However, Anshan did not announce the verdict, and he dared not leave.He wanted An Shan to become a gold medal police officer at the same level as his teacher.

She is a beautiful police officer, and the youngest gold police officer in H province. She has a bright future, and his teacher dare not provoke him. He is the target of many gold police officers and platinum police officers.

When Su Yan saw that aggrieved expression, he almost laughed, but he went back anyway.

He continued, "It's actually not difficult. The core lies in Ma Qifu's tea. He looked at the tea leaves under Ma Qifu's coffee table, mainly Longjing tea, three types. The fourth-grade general Longjing tea, the second-grade Yuqian Longjing tea, and the super-grade Qianming sparrow."

He looked at a group of stupid old men and shook his head helplessly.

Jiang Muyu interjected, "Que Tong tea before the Ming Dynasty was a super-grade tea, and one tael was between 900 and 1500. Longjing tea before the rain is average, and one tael was only 50-100."

Su Yan smiled and said, "That's right. At Ma Qifu's age, he has also become the vice principal in the past two years and has real power. It can be said that face work must be done. If it is a frequent friend, it will not bring Wuliangye and Ruan Zhonghua. If it is a friend who does not see each other often, Ma Qifu will definitely show his face if he brings high-end gifts such as Wuliangye and Ruan Zhonghua."