Detective Training Manual

"Dang~" sounded.

Zhou Yan pressed the key and the piano sounded... Officer Li looked at the piano.

"Piano? Piano murder?" he asked with blinking eyes.

"Of course not, the murder weapon is caught in these keys." Zhou Yan said.

In fact, this reasoning is easy to think of. It's just that the murderer deliberately used the needle to blur his vision, which made Zhou Yan temporarily think the wrong direction.

Fortunately, with the help of the brothers in the book, he did not go too far in the wrong direction.

This time Zhou Yan’s reasoning is actually the simplest linear reasoning.

First of all, knowing that there are residual toxins in the body of the deceased, then the most basic point is that the deceased must have been exposed to toxins.

Then during the whole performance, the deceased only touched the following things.

【Long needle】【Seat】【Piano】

Only these three are the most suitable for the timing of poisoning. Through food, microphones held by the deceased before, etc., do not match in terms of time, because as I said before, this toxin is extremely toxic. , After entering the body, it will soon cause nerve necrosis, dizziness, coma, and organ failure.

Therefore, the poison must have entered the deceased's body a few minutes or even a few seconds before the death was found.

At that time, the only thing the deceased had touched was the most convenient for poisoning and the least noticeable... is [Piano].

More precisely, it is in the gap between the piano keys.

As long as a needle is inserted into the gap, a very small needle, coated with toxin, then when the old man Chuntian presses the key, his finger will be pierced by the needle hidden inside.

"When~Boom~"

Zhou Yan carefully pressed down the keys one by one, carefully observing the gaps between the keys.

There are 88 key positions in a piano, and these keys are repeatedly pressed by the fingers during the playing process.

But the murderer can't just put the needle in a certain key...the needle must have a specific position.

Because Mr. Haruta Hiroshi was found dead after the performance was over.

Therefore, if the deceased's finger was pierced when he first started to play, then he is likely to die in the process of playing.

In other words, if you want the deceased to play a complete movement, you must make the deceased pierce his finger when he presses the last few keys of the performance.

Zhou Yan was still pressing one button after another... jingling, suddenly!

The action he pressed stopped, and an extremely small needle, not much thicker than a hair, appeared in his sight.

This needle is hidden between a black key and the white key below. When these two keys are pressed at the same time, this needle will definitely pierce the skin.

And the location of these two buttons is a bit remote, probably on the edge of the piano.

"Found it! The murder weapon!" Zhou Yan said.

Several people from the forensics team hurried over, clamped the small needle with tweezers, and put it into the evidence bag.

"Hurry up! Send it to the police station for testing." Officer Li also quickly ordered.

With such a thin needle, it is fortunate that Zhou Yan directly stopped the few people in the forensic team just now. If they accidentally rubbed their skin when they checked it, it would be finished.

And just as Officer Li was about to say thanks, Zhou Yan said again: "Music score...played score..."

"Huh?" Officer Li was taken aback.

"Also, those who have listened to the concert have not let go. Go and ask to see if there is anyone who really understands music. You have to make sure that the music played by the deceased at the concert was written by him over the years. , Or other repertoires that have long been played."

"This..." Officer Li still didn't understand, but he quickly ordered, and then he asked in confusion, "Why do you want to determine these things."

"Naturally, the murderer is determined." Zhou Yan said: "You think, if the murderer wants to make the dead person very poisonous at the end of the performance, then he must put this needle before the dead person will not touch it. But in the end, there will be a few keystrokes. That is to say, the murderer must know the music score of the deceased in advance to complete the murder."

"Yes!" Officer Li suddenly realized.

At this moment...a police officer hurried over.

"Team Li, Detective Zhou, we asked the audience just now, and we also found a few people who understand music. They all said that at this concert, Mr. Chunhonghong played a new piece of music."

"new?"

"Yes, it's brand new, it's a piece they've never heard before." The police officer said, and then took out a sheet of music from behind: "Also, this is a sheet of music."

"Where did you get it?" Zhou Yan asked.

"From the old man Haru Tian Hiroshi's room, when we were searching for the murderer who killed Miss Alice just now, we passed through Haru Tian Hiroshi's room and went in to search, and we found this sheet music."

"Awesome! Hurry up and find someone who can play the piano."

"Um..." The police officer groaned: "I will~"

"..." Zhou Yan glanced at the police officer. He was dark, with messy hair and heavy bags under his eyes. At first glance, he looked like a social animal who worked overtime all the time. Does he know how to play the piano?

"Then...that brother, you are really awesome, come and see, do you see these keys until the end of the performance?

The police officer didn't say a word either. He sat in front of the piano and played directly according to the music score. His hand speed seemed to be no slower than that of Mr. Haru Tian Hiroshi.

This scene reminded Zhou Yan of a video...

At a certain sports meeting, a 200-meter sprint, athletes whizzing on the plastic track ~www.wuxiaspot.com~ And on the edge of the track, a cameraman carried a camera and followed the athletes while running, shooting at that speed. Faster than anyone on the court.

Okay, no matter in which world, there are such talents who are delayed by their jobs.

Without gossip, the policeman soon reached the final stage. Sure enough, his hand reached the button area where the needle was hidden. The last scale sounded, and Zhou Yan clearly saw his finger press down. The button that kills you.

"Pam" Zhou Yan clapped his hands: "Okay, now you can determine the real killer technique, and if you are lucky, the murderer should be found too, that is, he knows that Mr. Haru Tian Hiroshi is going to play the piano and knows the score The greatest possibility for the few people who had been in contact with the piano and who happened to be on the stage at the time was one of the three people sitting on both sides of the deceased who had no chance to shoot the needle into the body of the deceased.

Very risky, almost fooled by the murderer. "

At this moment...

"But..." Officer Li raised his mouth suddenly: "But if the real murder method is the small needle hidden in the case, what happened to the long needle behind the deceased? "