Detective Training Manual

[Htimeag: This is waiting for us to edit it]

Zhou Yan: "??? Editing? What is it, this is a real case, how can it be edited."

[Chunhua Blood Abuse: Have you never understood him carefully? 】

"Is this saying that I still don't know the suspects? It's not that it is, because this kind of thing is completely handed over to the police. They must be more careful than I did."

[Let's talk nonsense: From the reactions of the people around you, everyone did not expect that he would play the piano today. In order to create this surprise, it is likely that only a few people know that he is going to play the piano, if it is because of his death. , You can narrow the scope of the investigation. 】

"Yeah!" Zhou Yan nodded: "It looks like this. Few people know that the old man Haru Tian Hiroshi will play the piano at this concert, but before the performance, someone still brought the piano up. This shows that In the orchestra, everyone knows that the old man wants to play the piano. In other words, the murderer should still be someone in the orchestra."

[The man in the false book: Something is wrong, and the perfect crime has begun again? 】

"Perfect crime? No, this case is not a perfect crime at all, but after all, why do the people in the crime club always study perfect crime? What are they doing with perfect crime? I really don't understand."

[Macabaka Empire: There is a problem with the piano...]

"Piano?" Zhou Yan was startled: "Yes, it's the piano!"

That's what he was looking for just now.

piano......

If the murderer knew in advance that the old man was going to play the piano, it would be the most convenient to use his hands and feet on the piano.

[Passing through the door of the silver spoon: How is it a bit like the old man left's way of death? First look up the piano, seats and stage layout. Speaking of two murders in such a short period of time, ██ is still in trouble over there, I am afraid it will come to Boda. 】

"Well, sure enough, it seems that many people still think that the piano may be the most problematic point, but..." Zhou Yan hesitated, rubbing the small black frame on the note with his hand: "Why did this blacked-out part come out again? What did this brother say?"

Zhou Yan rubbed it for a while, but found that it didn't come down, so he could only sigh helplessly.

Immediately afterwards, he found Officer Li.

"That...has the piano been checked? And the seats under the piano?"

Officer Li scratched his head: "Checked it, but it was just a rough check. Because you just said that the suspect has been locked, I didn't send too many people to investigate the scene."

"Then send someone to investigate now, be careful..."

"Um...but it may take some time."

"Why?" Zhou Yan was taken aback.

"Because many people have been sent to find the weightlifter, there are very few people left here." Officer Li explained.

"Yeah, that's right." Zhou Yan nodded helplessly. This hotel has 20 floors and more than 300 rooms. The murderer is a very lethal person. The police should not be too scattered, otherwise there may be danger. : "Anyway, as soon as possible."

"We will do our best." Officer Li also said, "Oh, yes, there was news from the police station just now, saying that the cause of death has been determined."

"Oh?" Zhou Yan was taken aback: "Confirm the cause of death? Isn't it a ruptured heart?"

"It was indeed a massive internal hemorrhage caused by heart damage. However, in the blood of the deceased, the coroner also found highly toxic... extracts of botulinum..."

Zhou Yan: "Botox? What is that? I seem to have heard of it somewhere."

Officer Li hesitated: "Uh...I have also heard that it seems to be some kind of medicine used for beauty, but according to the news from the coroner, that thing should be regarded as one of the most poisonous in the world. It is a natural toxin, and the extraction environment is extremely wide. It can be extracted from the soil, animal feces, rotting meat, and even some insects."

"Is it so convenient. It doesn't sound like a great deal..."

"I don't think this name is very powerful, but...there is such a sentence in the report sent over."

With that said, Officer Li also passed the report he received to Zhou Yan.

Zhou Yan turned on the phone and took a look... "His--" he couldn't help taking a breath of air-conditioning.

I saw it said...

[A residue of botulinum toxin was found in the body.

The toxin is a neurotoxin with a lethality rate of 100%.

Adults can cause death after entering the blood at a dose of 100 millionth of a gram.

Before death, people will experience weakness, coma, and inability to breathe. Under large doses, people will ulcerate their internal organs. So far, no specific medicine has been found. 】

Zhou Yan swallowed his saliva. One hundred millionth of a gram can make people die after hemorrhage? seriously.

One-hundredths of a millionths, that's a bit bigger, so you can't see it when you fall on the ground.

Zhou Yan even wondered if the autopsy officer made a mistake.

Of course, the police in this world should not make low-level mistakes like ‘wrong report’.

"Then, have you figured out the source of this toxin?"

"Found it, right on that needle..." Officer Li said.

"Emmmm...In other words, Zhou Yan deliberately painted a poisonous needle on the needle because he was afraid that he didn't shoot it in, or didn't shoot it to the heart?"

Officer Li nodded: "Yes, I think so too. The murderer must be 100% of the dead and the place of death. This is understandable."

Zhou Yan frowned.

"Is that insurance? Isn't it... not framed?

No, this seems even more suspicious.

If this guy can extract such a poisonous toxin, then why would he use such a long needle to penetrate the body of the dead?

The lethal amount of 1 part per 100 million gram, even if it gets a little scratched on the tip of the needle, it will be lethal.

Are you afraid that what you refine is not pure enough?

But this step has already been achieved. It is entirely possible to use kittens and puppies to experiment. As long as the medicine is strong enough, a small needle can kill the deceased.

So if you use such a huge needle in an unnecessary move, isn't that intentional to expose yourself...

and many more!

piano? ! "

Zhou Yan looked back abruptly~www.readwn.com~ He stared straight at the piano on the stage. Several people from the Evidence Division were walking towards the piano. They had already put on plastic gloves and were about to open the piano. The lid is ready to check whether there are any organs inside.

"and many more!"

Zhou Yan suddenly pulled his neck and shouted.

Several police officers over there were taken aback, and the hand that had just reached out hung in the air.

Officer Li was also taken aback...

"Wh...what's the matter?" He asked with a dazed expression.

Zhou Yan didn't answer, but quickly ran to the stage and looked at the piano without any suspiciousness on the surface without saying a word...

"That needle is not a murder weapon..." he murmured.

"What!" Officer Li was taken aback: "Then...Where is the murder weapon?"