Don't move the old man's bounty

"Ah? You mean...suicide?!" Di Zhen opened his mouth wide, his jaw almost dislocated, and pointed to the back of his neck, "How can a person cut off his own cervical spine? , Isn’t this too difficult?”

Jiang Juan said calmly, "It's not too difficult, just use the two murder weapons found at the scene."

He screened out the blood-stained parts from the printed photos, placed them on the table one by one in order, and pieced together the situation at the scene.

Everyone surrounded him, and he was about to speak when he suddenly noticed something strange, and turned his head to look at Lian Xiao who was leaning against him.

The man met his eyes and felt a little strange, "What's wrong? Is there something on my face?"

Di Zhen stomped his feet anxiously, "Oh, my pro-deputy team, don't be a fool, I'm almost mentally weak."

Jiang Juan cleared his throat, pointed to the blood-stained carpet under the deceased and said, "Most of you have been attracted by the large pool of blood, that is, the accumulation of blood. The largest form of bloodstains is caused by the accumulation of a large amount of blood on a relatively flat object. The position of the blood pool helps to determine the original scene of the case. It is also the most common type of bloodstain at the murder scene. It can basically be confirmed that there is a blood pool The location is the first scene of the crime. The deceased’s carotid artery was injured and an open wound was formed. Due to the pressure generated by the heartbeat, blood will be ejected from the ruptured part of the blood vessel, and blood splatters will be formed first. Although most of the traces are covered Hidden in a pool of blood, but no one, including the forensic doctor, noticed the blood splattered on the bookshelves and books, and important evidence proving the deceased's self-harm was missed."

Xiao Shi's face turned hot when he was named, and he felt that he couldn't hold on, so he said in a muffled voice: "Isn't that because I am worried about you... I am thinking about you, so I don't want to work."

"Dereliction of duty is dereliction of duty. Don't make excuses and go to the financial department to pay the penalty."

Xiao Shi wailed "hum hum" a few times, lay down on the edge of the table and did not speak.

Jiang Juan took out the blood-stained part near the bookshelf from the photo and pushed it to Xiao Shi, "I'll give you a chance to make up for your mistakes."

Xiao Shi immediately took it, wagging his tail, and passed it on to Di Zhen and Song Yuzhi. While watching, he took a pen to make gestures, and even took out a protractor from the drawer.

"This is the bookshelf with the deceased's back facing. The bloodstains are scattered in a curved shape, forming a large oblong shape. The angle between the flying direction of the blood droplets and the plane carrier is less than [-] degrees. Most of the blood spots are small and do not follow the plane. The bloodstains formed in the direction of gravity are distributed intermittently and in groups, which proves that the bleeding position of the deceased is a certain distance from the place where the bloodstains are left, and the intersection of the angles...is too low."

Xiao Shi used a pencil to draw a few straight lines on the photo according to the angle.Judging from the on-site situation, when the important condition of distance is satisfied, the highest position of the intersection angle is too low, and the height is only about 1.3 meters four by visual inspection.

"The deceased was 164 centimeters tall. To reach this height, he had to bend over or bend his knees. No matter how you look at it, this kind of action looks like... an execution?"

Xiao Shi's words made everyone gasp, but then he suppressed people's hearts that were raised in their throats, "But didn't Jiang Er say that this is an act of self-mutilation? Executing himself? Not quite Maybe."

"If I had tutored you in primary school mathematics, I would definitely have to carry antihypertensive medicine with me now." Jiang Juan rubbed his aching temples, "I said that the blood splatter point is some distance away from the bookshelf, when the horizontal line and the ground When keeping parallel, we can regard the shape of the splattered blood as a common straight line, and extend along this line..." He took the pencil in Xiao Shi's hand, put his head against his head, and extended the splattered line to Below the point marked by Xiao Shi, a new point was marked about 75 cm above the ground.

"Isn't this even shorter..." Di Zhen licked his lips in confusion.

"I understand that the deceased was squatting on the ground instead of leaning over or kneeling. The blood sprayed from this position can be sprayed in straight and curved shapes, and the angle matches the marks left on the bookshelf." Xiao Hajime patted his thigh.

Jiang Juan nodded, took a piece of draft paper and folded it in half and handed it to Xiao Shi, pointing to his neck, "Supposing you were the murderer who didn't exist and I was the dead, how would you attack me?"

"What nonsense!" Xiao Shi sternly rebuked him, choking back Jiang Juan's last words, and didn't say anything.

He turned his head and pulled Lian Xiao who was close to Jiang Juan, "Squat down, you are the victim and I am the murderer."

Lian Xiao didn't know why, so he dragged him to the open space next to him in a daze, and he could only half push and half squat down.

Jiang Juan rested his forehead and sighed: "Crazy..."

Xiao Shi stood behind Lian Xiao at first, holding a paper knife and was about to slash the latter's neck. He raised his hands and realized that the wound of the deceased was almost perpendicular to the cervical spine at an angle of 83 degrees, and the wound was narrow at the top and wide at the bottom. , There was no way to cause such a wound from behind, so he could only stand to Lian Xiao's left hand and use a very awkward posture to slash the knife.

Song Yuzhi, who was watching the play, said "Oh—" thoughtfully, and looked at Jiang Juan who was fiddled with the listless orchid lily petals, "No wonder, killing people with such a posture is very difficult. From the point of view, the murderer At least seven or eight centimeters shorter than the deceased, but Xu Zimu's height is about 182 centimeters, it is difficult to accurately slash the same part at this angle many times. Taking a step back, even if the murderer chooses this weird way of attack, in the He will also be found when he is close to the victim, once the victim shouts for help and attracts the attention of others, the murderer will be unable to escape. From these points of analysis, the possibility of suicide is indeed the greatest."

"Yeah, but I still don't understand, how does the deceased cut himself in the back of the neck, and strike accurately every time? Isn't this more difficult than other people's murder?" Two words to describe.

Jiang Juan folded another piece of paper, and marked a "2" on it with a red pen, "This is the No. 1 murder weapon, which means that the blade is not sharpened, but the back of the blade has been impacted and worn." He said, taking the second knife from Xiao Shi's hand. A paper knife, after writing "[-]", let Lian Xiao hold it in his left hand.

"...Can I stand up?" Lian Xiao asked miserably.

"Just a little longer. The dignified special police captain, his legs are numb after squatting for a while, tell me which girl is willing to be your wife?" Jiang Juan teased.

The man's self-esteem was hurt, Lian Xiao howled: "What are you talking about, my side is definitely longer than squatting, don't believe me, try!"

Jiang Juan ignored him, just stuffed the No. 2 paper knife into his right hand, and patted the back of his neck incidentally.

Lian Xiao suddenly felt that the surrounding area was about ten degrees colder, and his bones were almost frozen with ice. Looking back, Xiao Shi was beating him with his murderous eyes, as if wishing he could kill him.

Not to be outdone, he smiled provocatively, and rubbed against Jiang Juan like a demonstration, trying to almost throw the man over.

Xiao Shi silently raised his middle finger, and before Lian Xiao could bluff, Jiang Juan fiddled with his hands and made weird movements.

Jiang Juan held the No. 1 paper knife, which symbolizes the real weapon of injury, against the back of his neck, so his left arm was raised, and the other hand held the No. 2 paper knife across the left upper and lower arms from the front of his body. The hollow triangular area formed between them pushes the back of the knife against the back of the No. 1 paper knife.

When he made this action, everyone was suddenly enlightened, and they couldn't help but feel a chill emanating from the depths of his body.

"If you want to create stepped marks on the wound surface, you need to hit it multiple times to ensure that the blade of the murder weapon can cut through the flesh and bones under repeated force."

Jiang Juan took out a photo of the cross-section of the deceased's broken bone from the autopsy report, and clearly displayed the wound in front of everyone. "Due to the difference in the landing point and the force used each time, the interval width of these stepped traces is also different, which is intuitive. It can be seen that the density is getting smaller and smaller, and it can be seen that under the torment of pain and fear, the uncontrollable body of the deceased's beating force is gradually decreasing until she can no longer lift her hands."

Everyone held their breaths and listened quietly, the office was completely silent, and a needle could be heard.

"As for the reason why no fingerprints were left on the murder weapon, it was because she had painted a layer of transparent nail polish on her hands to cover her fingerprints and palm lines. It is also difficult to determine who touched the murder weapon. This was premeditated. Xiao Shi detected a large amount of ethyl acetate on the hands of the deceased. This substance not only exists in nail polish, but can also be used as Dissolving agent, during the rescue period, no one noticed the details on the hands of the deceased, but one person knew about it, and then took the opportunity of entering the ICU ward to wipe off the nail polish residue on the deceased's hands with the dissolving agent .”

Jiang Juan sat back on the office chair, looked up at the cold white light tube, and expressed a rare sadness in his tone: "The deceased was only a woman with limited physical strength, courage, and psychological quality. It must be the most painful way to get rid of extreme despair and no choice."

Di Zhen rubbed his nose, and said with an imperceptible cry: "...So it is like this. The death method and suicide method chosen by the deceased ruled out the possibility of homicide. The blood was not covered, and it was sprayed on the bookshelf and On the carpet, no one else was around when she was hurt. Was she hoping...not to trouble anyone?"

"Perhaps, it can be seen from this that no matter what Xu Zimu confessed during the interrogation, he was not the murderer who caused serious injuries to the deceased. As for who cut off the oxygen of the deceased..."

Song Yuzhi took out the documents, "That's why I came here. I investigated the hospital's surveillance video and ICU entry and exit records, and confirmed that Xu Zimu was the only person who entered her ward before the deceased lost her vital signs. He was arrested after staying for 5 minutes. The nurse asked to leave, and a few minutes after leaving, the victim's electrocardiogram started to alarm, and the medical staff had no time to rescue him, and he died."

"A few minutes, which means that he didn't cut off the oxygen tube. Maybe he was afraid that the nurse would find something abnormal, or maybe he wanted to create an alibi for himself. In short, it can be confirmed that the person who really caused Mu Xueyin's death was him. You can apply Arrested." Jiang Juan said.

Song Yu only nodded and left the door. Di Zhen still had a complicated expression on his face. Looking at Lian Xiao who was still acting strangely, he leaned forward and whispered to Jiang Juan, "Brother Jiang, do you think you will... Could it be that the deceased had been threatened and forced to choose this way? Could it be that Xu Zimu just watched her coldly when she had to carry out such a cruel self-mutilation?"

"It's not impossible, but I personally don't think it's very likely." Jiang Juan said to Xiao Shi again, "Is there anything abnormal about the deceased's mouth?"

"No, I didn't even wear lipstick when I was at the scene, and there was no such thing as being gagged." Xiao Shi looked into Jiang Juan's heart at a glance.

"In such a painful situation, it is very difficult for a person not to scream, so I personally prefer that it is caused by Mu Xueyin's mental power. If this is the case, she should not have been hurt during the process of self-harm. Influenced by objective factors. But the possibility of being threatened by others does exist, otherwise it is impossible to explain why a strong woman like her with hope would suddenly choose to commit suicide by self-mutilation, do you have any clues?"

Di Zhen recalled for a while, nodded and said: "Yes! She and Ye Mingxuan's adopted daughter, a seven-year-old girl named Ye Sizhen. She was adopted by the husband and wife through formal procedures. She came to Ye's house when she was still a baby. It is said that she is Because of congenital diseases, the biological parents of the poor family gave up treatment. Mu Xueyin adopted her after seeing the girl in pity. There is a deep relationship between their mother and daughter, and the nanny and neighbors say it is better than her own. If it is her If not, it may be the weakness of the deceased."

Jiang Juan hesitated for a moment, and then gave a low "hmm", "I'm not yet sure whether Xu Zimu was at the scene when the incident happened, but he can definitely reveal more secrets about this case, and I'll leave it to you to interrogate him .”

After saying that, the two went out together and walked towards the interrogation room.

After stretching for a long time, Lian Xiao, whose body was stiff, slowly stood up, stretched his sore arms, and slapped two paper knives on the table.Because he didn't want to be alone with Xiao Shi, he wanted to go with him when he was walking.

At this time Xiao Shi suddenly said softly: "Brother, you probably don't know yet, they all say that Jiang Er is Diao Chan and I am Lu Bu."

"Oh, yes, that's fine, but what does it have to do with me?"

"Because you are Dong Zhuo."

Lian Xiao: "..."

The author has something to say:

Some theories in this chapter come from "Forensic Field Science" and "Forensic Pathology".

Today's joke from hell:

Xiao Shi, who was left out on Valentine's Day yesterday and is still squatting at the door in the cold wind shaking his nose: Isn't it just flowers?Do you think I am rare?ah?My grave will grow in the future! !

Ah Juan: Ah, yes, yes, yes.