The King of the City

If he really sleepwalked to kill, then he didn't even know that he killed someone, and no matter how he interrogated him, there was no sign of him lying.

But judging from the current situation, if Cheng Yuanan is the murderer, he is more likely to kill deliberately.

A criminal policeman who brought Cheng Yuanan took out a nunchaku from a plastic bag.

With gloves on his hands, the detective carefully took out the nunchaku and said, "This nunchaku was found under Cheng Yuanan's chuang. The nunchaku is stainless steel and weighs very heavily. , it is estimated that it weighs at least six or seven pounds."

After hearing this, Ouyang Chuying, Liang Hongxue and the others' eyes lit up slightly.

The fatal wounds to the heads of the three deceased were all smashed out by blunt objects. The forensic doctor, after firming the wounds of the deceased, speculated that the murder weapon should be a hammer, but only speculated that the heavy nunchaku was used to smash it out. , is not impossible.

This heavy nunchaku, two sticks can be twisted into a longer stainless steel stick, if you grab this stick and hit someone, it is still very aggressive.

"Where did these nunchucks come from? Why did you check the student dormitory before and didn't find anything?" Liang Hongxue asked.

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After the murder, the police searched for the murder weapon, and searched the classrooms, dormitories, cafeterias, and toilet water tanks. No suspicious blunt weapons were found.

In Cheng Yuanan's dormitory, this nunchuck was never seen before.

This kind of nunchaku is very heavy and has a certain lethality, and the school also prohibits students from bringing it into the school.

Cheng Yuanan stammered and said, "I bought these nunchakus to practice. I used to keep them at my relatives' house. I brought them back from my relatives' house last night."

Everyone looked at each other, and they felt more and more that Cheng Yuanan was the murderer.

After Cheng Yuanan killed someone, he put the nunchucks in relatives' homes. After killing Song Ping last night, he brought the nunchakus directly to the school.

Ouyang Chuying said to the detective on the side: "I immediately give this nunchaku a Lumino reaction to see if the stick was once stained with blood."

 …  

Luminol is also known as luminol, the luminol reaction. In layman's terms, at the crime scene, as long as it is a place or object that has been contaminated with blood, no matter how much effort you waste to clean the scene, even if it is past. For a long time, as long as Luminol is sprayed on, the place contaminated with blood will have a fluorescent reaction, and blue-purple fluorescence will appear in the dark.

The detective immediately took the nunchuck and went to another room to perform a Lumino reaction test.

During the Lumino reaction, Ouyang Chuying continued to interrogate Cheng Yuanan. Cheng Yuanan became more and more nervous the more he was asked. of.

However, he insisted that he was not the murderer, and definitely did not kill.

A few minutes later, the detective who did the Lumino reaction came back and said, "This nunchaku has been stained with a lot of blood."

After hearing this, Zhang Tian's expression froze.

When Cheng Yuanan answered the question, he was too nervous, sweating constantly, and his reaction was suspicious.

Now, on his nunchaku, it has been detected that he has been contaminated with a large amount of blood. Could it be that he is really the murderer?

Zhang Tian'an subconsciously reached out and grabbed the phone in his pocket.

Ouyang Chuying was about to catch the murderer, why did Lin Chen not come back, where did he go?

……

PS: This is the second update, brothers, the protagonist is about to play...

189 How to explain blood stains 【Subscription】

Luminol is a pale yellow-colored crystal at room temperature. It is often combined with hydroxide to identify blood. The principle is that iron in hemoglobin decomposes hydroxide into water and monooxygen, and monooxygen and luminol. Oxidation shows blue-white fluorescence.

The sensitivity of the luminol test can reach one in one million, that is, a drop of blood can be detected even when it is mixed with 1 drops of water.

The detective who tested the nunchucks for Lumino asked everyone to close all the curtains in the conference room. He took a cardboard box from the door and put the nunchucks in the cardboard box.

The lid of the carton is closed, leaving only a slight gap.

Through the gap, you can see that there is a large area of ​​radiance on the nunchaku.

Those places were once stained with blood.

Everyone from the task force approached and looked into the gap in the box. Although the county party secretary and other leaders did not speak, they also walked over to see the glowing nunchuck in the cardboard box.

After everyone read it, another detective brought an electronic scale from nowhere. After placing the nunchaku on the electronic scale, it immediately displayed a series of numbers: 5.23kg. 17

5.23 kilograms, which is about 10 kilograms.

Nunchakus on the market are made of plastic or wood, and there are also many stainless steels, but they rarely weigh more than 5 pounds.

The nunchaku is a weapon that is not easy to control. If you are not careful, the swinging stick will hit the user himself. Low.

Ouyang Chuying turned to look at Cheng Yuanan, who was covered in sweat, and said, "Cheng Yuanan, let me ask you, why did you buy a 10-pound nunchuck?"

Cheng Yuanan looked at the nunchaku that the criminal police took out of the cardboard box, and then looked at Ouyang Chuying, who had an indifferent face, he stammered and said, "Because...because I like nunchucks... ...haven't you seen that movie? The protagonist in the movie...fights with nunchucks...that scene...it's so handsome..."

"A nunchaku that weighs 10 pounds, does it hurt when you throw it on your body?" Liang Hongxue asked with a scrutiny in her eyes.

"It hurts... it hurts..." Cheng Yuanan said, "But it's okay... I have more muscles on my body, and when I accidentally hit my body, it doesn't hurt too much..."

"Of course you won't hurt anymore." Liang Hongxue said, "Because it's a stick, you hit someone else's head, not yourself."

When Cheng Yuanan heard the words, he subconsciously took a step back. He waved his hands vigorously, shook his head, and said, "No, I didn't kill anyone, and I didn't smash nunchucks on other people's heads..."

"When your two roommates lived with you, nothing happened at the school. When your two roommates left, within two days, a humanoid pattern appeared on the school playground, and a murder happened."

Liang Hongxue stared at Cheng Yuanan and said, "Also, you should have slept in the school last night. Why, why did you go to live with your relatives last night? As far as we know, your relatives have gone out of town. You went out to stay last night, and you are the only one in your relative's house."

"I...I...I..." Cheng Yuanan was asked by Liang Hongxue's words, and the sweat on his forehead began to drip.