Sakuraen Girls' High School, music classroom.

Saoki, who was wearing a navy blue T-shirt, suddenly picked up a close-up photo of his left chest that he had seen before but ignored some details. He used his index finger to circle a circular area with the heart as the center and brought it close to his eyes.

Beside Thirteen.

"Officer Megure, is this a bruise?"

The plump man grabbed the photo and pondered, "Look at the autopsy report, there is such a bruise on the left chest!"

Saoki faintly caught the point that he felt was awkward before, his eyes were extremely bright, and he asked in an almost determined tone: "Is the bruise here a pre-mortem injury?"

"What is a pre-mortem injury?" Kaoru Nagasaki asked curiously.

Saoki spoke quickly, "The so-called antemortem injuries refer to the violent mechanical injuries suffered by the victim before his death, while the corresponding postmortem injuries refer to the violent mechanical injuries inflicted on the victim after his death.

.

"The key to distinguishing the two is that bleeding is a response to life. A living body will bleed after being injured and the blood will enter the tissue; while a wound formed by cutting off a blood vessel after death will have blood flowing out, but often only

On the surface, it will not enter the tissue, and the same is true for other violent mechanical injuries."

"Yes, Mr. Sagi is right. This is indeed an injury before death." Officer Megure nodded in response.

"Are there any suspects?"

Opening the notebook, he held his chin and replied: "There is one, Hirata Yu, 28 years old, unemployed, living in the same apartment as the deceased. They were neighbors, and they had a quarrel with the deceased over trivial matters, and were arrested in the same apartment.

The other residents have seen him several times, and once even heard Hirata Yu say harsh words to him like "I'm going to make him pay". Moreover, someone saw him wandering on the road near the school at the time of the incident last night.

.”

Sasaki frowned and asked, "What about Hideno Hashimoto and school worker Numai Heiyoshi? Why were they able to get rid of the suspicion so quickly? Do they have a definite alibi?"

Officer Megure said calmly: "According to the time when Kaoru peeked into the murder scene at 9:10, Hideno Hashimoto in the duty room had just finished talking to his wife. According to him, he was walking to the main entrance.

While patrolling near the entrance, I heard a violent knock on the window from the duty room, so I turned back, opened the window and saw Xunzi running in a hurry.

"I confirmed the content of the phone call with his wife, and there was nothing abnormal. Moreover, the call records on the landline in the duty room showed that the time when he hung up the phone was exactly what he said."

Sagi nodded in agreement: "Even if there is a half-minute difference between the time confirmed by Xunzi and 9:10, it is still not enough for Hideno Hashimoto to rush from the duty room to the music classroom, talk to the deceased, and then shoot him.

, the alibi is established!”

"That's right!"

He then asked: "What about the school manager Numai Heiyoshi? What is his so-called alibi?"

"According to him, at the time of the incident, he had been sitting in the back room of the school office watching an exclusive hit TV series. After the police arrived, he could completely tell all the plots of the TV series from 9:00 to 9:18, and even

I still have an impression of the commercial that was interrupted. By the way, 9:18 is when Hashimoto Eino and Kaoru went to the school office to ask him for the key to the music classroom, and asked him to go to the music classroom to investigate together."

Saoki said calmly: "I understand, it's an exclusive hit. There is no possibility of knowing the plot in advance. After Hashimoto and Xunzi came to find him, until the police arrived, it was impossible for him to have contact with TV or other channels to understand the plot.

, it is indeed an impeccable alibi.”

"Is there anything else you need to know, Saaki-kun?"

He walked to the door and pointed to the door handle and knob, "Are there no fingerprints left at the scene other than those of the deceased? Like this?"

"No, the handle inside the door seems to have been specially wiped by the murderer. Not only does it not have the murderer's fingerprints, it doesn't even have the fingerprints of the deceased. As for the handle outside the door, there are fingerprints of Hideno Hashimoto and Heikichi Numai."

"Has the murder weapon not been found yet? I didn't see it in these evidence photos?"

"Unfortunately, we haven't found him yet. It is estimated that the prisoner escaped through the window and was taken away for processing. The area is too wide and we won't be able to find him for a while." Officer Memu still shook his head.

Nagasaki Kaoru, who was listening quietly on the side, originally wanted to ask him why he did not suspect Hirata Yu, but then he thought about Saaki's previous reasoning about the scope of the suspects, and did not dare to say more.

"Is the key to the small back door connected to the school office only hanging in the school office? If you want to go out from there, Numai will definitely know about it, right?"

"Yes!" Mumu Shisan answered both questions in the affirmative.

"As for the front entrance door, only the school office has a key?" Saomu looked at him expectantly.

"No, Principal Ogino also has one."

"How many bullets and shell casings were left at the scene?"

"If you look at the scene... there are no bullet casings. The attacker should have used a revolver. As for the bullets, one was in the body of the deceased, and the other penetrated out and landed over there!" Officer Megure pointed to the ground near the blackboard.

There was a small circle marked with a white line. After seeing the boy nod, he took out the glasses cloth and wiped the lenses calmly. He couldn't help but ask, "Why didn't Saaki-san ask about Hirata's situation? In my opinion,

, he is the most suspect."

"No need, I've already asked!"

After saying that, he put on his glasses again, walked to the piano on the left front, sat down on the stool, opened the piano cover, and danced with his fingers on the black and white keys.

Saoki wanted to play Haydn's piano sonata, but he had not touched the piano for a long time and his fingers were unfamiliar. At this time, he was holding a puppet string, one after another.

"Do you know why the prisoner took the watch?" Officer Megure said in disbelief.

"You also know the secret room technique?" Nagasaki Kaoru, who was wearing black stockings, was also stunned. This is not like the detective Jerry Lane in the "Tragedy" series of mystery novels she had read, who just sat in Hamlet Villa.

Sitting on a quaint chair, listening to the visiting police officer's narration can reveal the truth of the case.

Looking at the boy's profile, she was in a daze for a while.

Sasaki, who had no choice but to give up, stopped moving his fingers, turned to Megure Thirteen and said: "Please also ask Officer Megure to bring the math teacher Hashimoto Hideno, the school worker Numai Heiyoshi, the principal Ogino and the woman who was in Sakura Garden."

Bring Hirata Yu who is wandering around the high school here! The final scene of the play will be staged here in a while!"

"Okay!" Mumu Shisan turned around and told the police officers outside the door to notify these people to come over.
Chapter completed!