Chapter 62 Misaligned Bloodstains
Du Yu said on the phone that the crime occurred in the principal's office of Jiangcheng No. 4 Middle School, and asked two people from the forensic department to come over quickly. There were many people at the scene, and they were afraid that the body would be damaged and it would be detrimental to the autopsy.
Xu Yiqing and Lin Sheng rushed to Jiangcheng No. 4 Middle School without stopping.
No. 4 Middle School is located in the far west of Jiangcheng City. Further west is the national highway leading to the countryside. There are low-rise private houses along the way.
At this moment, the entrance to No. 4 Middle School was full of cars, as if there was some important meeting.
After a brief communication with the guard, the guard let Lin Sheng's Chevrolet go, so he stepped on the accelerator and went downstairs to the administrative building. At this time, several police cars were already guarding the door.
Xu Yiqing asked: "Asheng, have you been to No. 4 Middle School?"
Lin Sheng obviously knew the environment inside Jiangcheng No. 4 Middle School. He knew the location of the principal's office just now without asking the guard.
After Lin Sheng got out of the car, he took out the bag containing tools from the trunk and looked at the campus with emotion: "No. 4 Middle School is my alma mater. I studied here for two years, and my grandma sent me to a key school in the third year. I passed the No. 1 middle school. Compared with the learning atmosphere in the last year, I still miss the days in the No. 4 middle school more. ”
There were police waiting downstairs. When two people from the forensic department arrived, they quickly led them into the building.
"What's going on at the scene? Why are there so many people?"
Xu Yiqing noticed that there were many people in the administration building, including students in school uniforms and parents who were obviously older.
The policeman replied in a low voice: "They are all here to see the principal. To put it bluntly, they are just giving gifts."
These parents looked flustered and obviously did not want to cause trouble.
Who would have thought that they originally came to the principal to discuss admissions for this year for the sake of their children, but ended up encountering a murder case, and each one of them said they had something urgent to do and wanted to leave.
"Please, comrade, I'll be in trouble soon."
"I just came here, it has nothing to do with me."
Naturally, the police maintaining order could not let them go and stopped these parents who wanted to leave the scene.
In addition to the parents, there were also several students responsible for cleaning the administrative building, who gathered in the lobby on the first floor and were at a loss.
The students who still didn't know what happened looked around and asked, wondering why so many police were here, while the junior high school students who already knew that someone was killed had a look of horror on their faces, obviously frightened.
"What happened? I just went to the bathroom."
"The principal seems to be... dead."
As a result, several uninformed students began to panic. This was the first time they had seen death up close. As teenagers, they were inevitably afraid.
The police calmed their emotions and asked them to go back to their classes to find their teacher and not to run around or talk nonsense.
Lin Sheng looked at the students' frightened expressions and sighed softly: "Although today's children are all tall and mature and have precocious thinking, when encountering a dead person, it is better to panic."
Although Lin Sheng could not remain calm like his master when the mountain collapsed, he was still used to death.
I don’t know if any of my fellow juniors and juniors will be able to take over the mantle of Jiangcheng’s forensic doctor in the future.
The police said: "The body was found in the morning. The first person to find the body was the security guard of the administrative building. He is upstairs now with Team Du."
The principal's office was on the top floor. After going upstairs, Xu Yiqing met Du Yu.
He stood in the corridor outside the office with a serious expression. Standing in front of him was a tall and thin man with a tearless look on his face.
Not surprisingly, this was the first security guard to discover the deceased.
The security guard said: "I swear the key has always been in the security room and I have never lost it! And the door was locked when I came in the morning. It's absolutely true!"
Du Yu frowned even more when he heard this, and even seeing Xu Yiqing didn't relieve it.
"Old Xu, things are a little tricky."
This sentence is a double entendre. The first meaning is that the principal of No. 4 Middle School is really dead, just like the mentally ill person who "reported false police" said.
The second meaning is that this case is also very difficult.
Du Yu said: "Based on the current situation, it was a secret room murder."
Xu Yiqing said: "Let me take a look at the scene first."
The office door was open. Xu Yiqing put on foot gloves and medical gloves and stood at the door looking in.
The principal of No. 4 Middle School was lying on his back, covered in blood, with a wound on his neck. He was almost killed by a knife.
Xu Yiqing and Lin Sheng carefully walked into the door and saw several eye-catching characters written in blood on the wall——
I'm guilty!
The same feeling as Du Yu came to mind, it was another extremely difficult case.
Xu Yiqing asked Lin Sheng to take photos of the body for evidence, and then checked the house.
The office has a desk, a computer, a wall-mounted air conditioner and a wardrobe.
The computer was not turned on and the air conditioner was turned off. The deceased was lying in the middle of the room, but the blood stains were near the closet.
Check out the 16-9 book bar and see the correct version!
Xu Yiqing took a closer look and saw that the wardrobe had a double-door style and there were splatters of blood on the front, but the blood had dried long ago and was similar to the blood on the deceased.
Lin Sheng also observed and said: "This blood stain is at least ten hours old."
Xu Yiqing nodded: "It may take longer."
He reached out and touched the edge of the blood on the surface of the wardrobe, and rubbed it with two fingers to determine the consistency.
Regardless of the spots and rigor mortis on the corpse, one can tell that the deceased died at least yesterday just by the dryness of the blood at this room temperature.
Then he squatted down and began to examine the deceased's wounds. There was no obvious trauma. Combined with the traces of blood on the neck, he could judge that it was a pre-mortem injury.
After death, blood circulation ends and the heart no longer provides blood pressure. If the carotid artery ruptures, there will be no jet-like blood stains.
It was basically certain that the wound on the neck was a fatal injury.
"It's a sharp weapon wound." Xu Yiqing murmured to himself after checking: "The wound is deep on the right and shallow on the left. It is almost a straight line. The murderer was right-handed and used an overhand grip with the blade facing outward, and slashed the deceased's neck from right to left."
This overhand grip is very similar to military fighting techniques.
Many people have misunderstandings about how to hold a dagger. They think that holding the blade like a kitchen knife is an upright grip. In fact, it is just the opposite. For a dagger, holding the blade upward is an overhand grip, and holding the blade downward is an upright grip.
Xu Yiqing called Du Yu and demonstrated to him the murderer's knife-holding posture when killing the deceased.
Du Yu is a retired criminal police officer from the armed police and is very familiar with the fighting skills in the system. He thought about it carefully after hearing this.
"If it were me, I would point the blade inward and stab the deceased's neck directly. Destroying the carotid artery from the side can lead to faster death. After all, there are actually four blood vessels in the neck, two arteries and two veins, one moving and one static. Groups, one on each side of the neck.”
"Anyway, that's what we were taught at the time. And the way you gestured, with the blade pointing outwards to slit the neck, is more like the method used by foreign troops, in order to cut open the trachea of the deceased to prevent him from calling for help."
After a short discussion, the two came to the conclusion that the murderer was by no means an ordinary citizen. He was familiar with killing techniques and was good at mixed martial arts.
The sound of Lin Sheng pressing the shutter resounded in the room, and suddenly he let out a confused chuckle.
"Brother Xu, Captain Du, come and take a look. Are the blood stains on the wardrobe unnatural?"
After hearing this, Xu Yiqing and Du Yu stood up and came to the front of the closet to examine the blood stains Lin Sheng said.
Soon Xu Yiqing discovered what Lin Sheng said was unnatural.
He pointed at the middle seam of the wardrobe's double doors: "The blood stains don't match up. The right side is two centimeters higher than the left."
(End of chapter)