Chapter 63 Murder in the secret room

Chapter 63 Murder in the secret room

Chapter 63 Murder in the secret room

There is only one possibility for the bloodstains not matching: at the moment when the deceased spurted blood, the cabinet door was actually half open.

Du Yu touched the cabinet door gently to make sure it opened inwards.

And because the bloodstain on the right side is higher than the left side, and the cabinet door is open inward, it can be concluded that at the moment the deceased's blood spurted out, the cabinet door on the left was half open, which caused the bloodstains to not match and the right side to be higher than the left side.

Du Yu exerted a little more force and pushed open the cabinet door. Inside were hanging clothes, all stained with splattered blood.

Blood was splattered inside the closet, but the closet at the scene was closed.

So Xu Yiqing immediately realized that the cabinet door had been moved after the death of the deceased!
He turned around and asked the security guard standing outside the door: "Did you move the cabinet after you came in and found the body?"

The security guard shook his head repeatedly: "I don't have it!"

"Was the cabinet closed at that time?"

"Should... that should be it. I was so scared that I went to call for help immediately."

"Who found the body with you?"

"It was just me." The security guard was about to cry, and no one could testify for him: "When class was about to start, many parents came and said they wanted to talk to the principal about this year's fall enrollment. Before I came, I saw the principal's car downstairs, and thought the principal should have arrived, so I asked them to wait in the lobby on the first floor while I went upstairs to ask."

"When I got upstairs, I found the office door was locked. I called out several times but no one answered, so I thought the principal had gone out. Just as I was about to leave, I smelled blood in the office. I felt something was wrong, so I used the spare key to unlock it... But when I opened the door, I saw the principal was dead!"

"Have you ever come in?"

"Just... just a few steps, I leaned my head inside and saw the principal's neck was chopped off. I was so scared that I quickly went downstairs to call for help."

Xu Yiqing looked at Du Yu, and Du Yu nodded: "It's consistent with the testimonies of the parents downstairs. They said that the security guard came upstairs a few minutes later and ran down in a hurry, shouting that someone was dead, and dragged them up to see. The parents followed the security guard upstairs, and this is what we see now."

Xu Yiqing asked again: "Those parents didn't destroy the scene?"

The security guard quickly said, "I know the common sense of protecting the scene. I only asked them to testify that someone was dead, but I didn't let them in."

Xu Yiqing said, "When you first came, was the door locked?"

The security guard nodded: "Yes, the principal and I are the only ones who have the key. I leave my key in the security room during the weekend."

"Where are the principal's keys?"

"Inside his coat." Du Yu waved his hand, and the police officer from the investigation department took the key from the evidence bag and showed it to Xu Yiqing: "The deceased's coat was also on the ground at the time. After investigation, we found the key inside the coat."

The door is locked from the inside and can only be opened with a key.

The deceased's key was in the house, and the security guard's key was in the security room. There were surveillance cameras in the lobby on the first floor and the security room, which proved that the key had been kept in the security room since the security guard got off work last Friday and no one had touched it.

A very typical secret room. Xu Yiqing now understood what was bothering Du Yu.

He looked at the dead body lying in a pool of blood with light corpse spots already beginning to appear on its face, then raised his head to look at the three eye-catching words "I am guilty" written on the wall, and sighed.

"Take the body back to the medical examiner's office and prepare for an autopsy."

Xu Yiqing could only hope to get more clues from the autopsy report.

But things don't always go as planned.

There was only one fatal wound, and apart from that, there were only some bruises on the buttocks and elbows, and no other scars were found on the deceased's body.

The deceased had his trachea and carotid artery cut by a knife, and fell backwards to the ground with his buttocks and elbows landing first. He struggled for only a few seconds before losing consciousness and died from excessive blood loss.

The time of death can be pinned down to around 9 a.m. on Sunday.

Criminal Police Brigade Office.

Du Yu looked at the shortest autopsy report in recent times in his hand, feeling powerless and uncomfortable.

The shorter the autopsy report, the less useful Xu Yiqing can be, which is not a good thing for the serious crime team.

Lin Sheng stayed in the Forensic Department and was replaced by Zhou Shi, who was obviously better at analyzing cases.

Xu Yiqing asked: "What should we do now?"

Du Yu said: "I have asked people to visit the family of the deceased. In addition, those parents who were temporarily called to the police station are also taking statements... In addition, the good news is that there are surveillance cameras in the lobby and security room of the No. 4 Middle School Administration Building. I have checked it and it happens to be able to capture the only entrance and exit of the building. All windows are equipped with anti-theft windows. The murderer must have entered and left through the main entrance. There are surveillance cameras, so there is no problem in checking the people entering and leaving one by one."

Zhou Shi said: "While waiting for the surveillance, I think it is necessary to interrogate the person who reported the case on Saturday."

In the interrogation room of the Criminal Police Brigade, the young mentally ill man was still handcuffed, and this time he was handcuffed directly to the table.

Du Yu sat in front of him, his eyes sharp: "Tell me, who is your accomplice?" He called the police on Saturday and reported that someone had been killed, and that person really died on Monday.

During this period, the suspect had been detained in the police station and there was no way he could run away and commit crimes, so Du Yu concluded that he must have an accomplice.

That is, an accomplice.

So the three members of the task force present immediately understood that the [Cleaner], who had been silent for several months, had started taking action again.

Why is it the principal of a junior high school this time?
And you want to help this mentally ill person in front of you?

The suspect was not afraid at all, and an excited expression appeared on his face: "He...he is dead, I killed him! He he he deserves to die!"

"boom!"

With a dull thud, Du Yu slammed his fist on the table, startling the suspect.

This kind of deterrence is necessary, and psychological oppression will make the suspect collapse earlier.

But it's obvious that this trick doesn't work well against suspects with mental problems.

He was just frightened for a moment, but he was not afraid at all. The excitement in his eyes gradually turned into madness: "Police, I surrender myself. In addition to killing... the principal, I also killed someone else!"

Du Yu gritted his teeth and said, "Stop it! Don't think I really don't dare to do it!"

Zhou Shi also thought that it might be more useful to give such people a beating.

Xu Yiqing frowned and asked, "Who else did you kill?"

The suspect's excited expression suddenly disappeared, and he fell into painful memories, hitting his head: "He...what's his name?"

After a moment, he suddenly realized and shouted, "I remember! His name is... Song Lang!"

So Du Yu asked the police to quickly investigate this man named Song Lang. Because he was not as specific as the principal of No. 4 Middle School, he thought it would take some time to find this person.

But unexpectedly, it took the police less than a minute to find this person.

He just entered the name into the file system and filtered it, and then he got the other party's information.

So it's clear that this person has a criminal record.

Du Yu found Xu Yiqing and sighed heavily: "It's getting troublesome again."

Xu Yiqing said: "Let me guess, this person is not dead yet."

Du Yu nodded: "Not only is he not dead, he is also an acquaintance."

"acquaintance?"

"You and I, Zhou Shi, have both seen him. Song Lang's nickname is Little Wolf... Li Dusheng's henchman."

Xu Yiqing suddenly realized that it was the nightclub owner.

"Then he is in danger now."

"I've sent someone to inform him." Du Yu said, "I'll deploy defenses if necessary. I have a feeling this might be a good opportunity to catch the [Cleaner]."

"Why would the Cleaner help a psychopath to kill the principal of No. 4 Middle School and Li Dusheng's henchmen? There must be some connection between these two people." Xu Yiqing pondered: "The Cleaner doesn't seem like someone who would kill innocent people indiscriminately, and she said that I would be the next one to be killed."

"Who wants to die?" Du Yu patted Xu Yiqing on the shoulder. "Don't worry, Old Xu. You can't die as long as I'm here. I have to catch her even if it costs me my life. It's my duty in a big way, but in a personal way, I owe you too much."

Soon, the surveillance footage of the administrative building of No. 4 Middle School was retrieved by the field police. Putting aside Song Lang's surveillance, Du Yu had to deal with the case of the murder of the principal of No. 4 Middle School first.

However, the three members of the task force plus the technicians from the investigation department watched the surveillance footage in sections to speed up efficiency, and it was almost evening. The atmosphere was becoming more and more depressing.

Until the last person witnessed the end of the video on the screen, everyone looked at each other and shook their heads.

no one!

From the end of get off work on Friday to the start of work on Monday, only the principal himself came to school to work overtime at 8:30 am on Sunday.

Apart from this, no one has ever entered or left the lobby of the administrative building!

How did the murderer kill the principal of No. 4 Middle School in a secret room at nine o'clock on Sunday morning and then disappear quietly?

(End of this chapter)