psychochemist

Chapter 380 8444 Train Murder Case

If no one knows how to appreciate, then the artist is alone.But loneliness has given the artist a different kind of inspiration.

Yu Fan said he knew how Lai Bushuang died.

Chen frame Yang quickly asked: "Old Yu, how do you know? What's going on?"

Yu Fan guided everyone into the box, and Yu Fan said to Yixin who was leaning against the door: "Hello, can you go get me two pairs of gloves? Train conductor, please go and count who has been there since [-]:[-] last night. Did you get in or out of the car?"

Yixin hurried to the dining car to get the gloves and handed them to Yu Fan.Yu Fan put on the gloves, handed the other pair to Chen Xingyang, and said, "Old Chen, put them on."

Chen Xingyang was puzzled: "What am I wearing this for?" While talking, his hands had subconsciously put on the gloves.

Yu Fan bent down, clasped his hands together, and said to Lai Bushuang's body, "Brother, I'm sorry, it's been too long since I've been in XA City, I can only look at your body first."

Yu Fan immediately turned his face and said to Chen Xingyang: "Old Chen, come on, help me, turn him over a little bit."

Chen Xingyang said to Fan very seriously: "Old Yu, you have never been a real policeman, so there may be some things you don't understand. Forensic examination of corpses is usually done by a forensic doctor. I am not a forensic doctor, so I don't understand..."

"Don't waste time, come on, give me a hand, I'll take a look at the corpse spots." Yu Fan said calmly.

Chen Xingyang took a breath and said, "Old Yu? You..."

Surprised, Chen Xingyang still helped Yu Fan slowly turn Lai Bushuang's body slightly sideways. Yu Fan lifted Lai Bushuang's shirt, revealing his back. Yu Fan slightly pressed on the back a few times, and let Chen Frame Yang gently laid down Lai Bushuang's body.

Before Chen Xingyang could open his mouth, Yu Fan spoke first: "The formation of corpse spots is due to the cessation of blood circulation after death, the blood in the cardiovascular system lacks power, and falls along the vascular network to accumulate in the lower parts of the corpse, and the high blood vessels of the corpse are empty. . As a result of hyperemia in the lower blood vessels of the corpse, the capillaries and small veins in the lower parts of the corpse are filled with blood, and dark red to dark purple scars appear through the skin. Flakes are corpses. The position of the plaques is directly related to the posture of the corpse. For example, in a corpse lying on its back, the plaques appear on the occipital, top, back, waist, both sides of the buttocks and the back of the limbs, sometimes It is also seen on the side of the corpse, and even the inclined area above it, such as the upper part of the clavicle.” Yu Fan still introduced the corpse plaque in detail in his iconic popular science speech.

Guo Na asked curiously: "Brother Yu, isn't this knowledge about psychology and chemistry? How do you know?"

Yu Fan smiled and said, "I just know."

Chen Xingyang went on to say: "Old Yu, you got off topic, didn't you just say that you knew how Lai Bushuang died?"

Yu Fan continued the topic just now: "Yes, after seeing the color of the corpse spots, I have strengthened my inference."

Chen Xingyang suddenly realized: "The color of the corpse spot? I remembered..."

Yu Fan interrupted Chen Xingyang and said: "The color of corpse spots depends on the color of blood and skin. Chinese people's corpse spots are usually purple-red, and corpses poisoned by carbon monoxide, because the blood contains a large amount of bright red carbon monoxide hemoglobin. , so the corpse spots through the skin are cherry red. The corpses of frozen to death and cyanide poisoning, because of insufficient oxygen utilization in the body, contain more oxyhemoglobin in the blood, so the corpse spots that appear through the skin It is bright red. The corpses in water or under freezing conditions, because oxygen penetrates into the subcutaneous blood vessels to form oxyhemoglobin, so the corpse spots are red or light red. The burnt corpses are inhaled carbon monoxide before death, and the unburned parts Corpse spots are cherry red. When potassium chlorate and nitrite are poisoned, due to the formation of methemoglobin, the corpse spots are grayish brown... White and black people have different skin colors, and the degree of presentation of corpse spots is also different. Black skin can cover corpses The color of the spot. With the development of post-mortem changes, the dark purple red of the corpse spot gradually turns to light green and green, blending with the color of the decayed corpse." Once Yu Fan entered his state, he would not hesitate to fight It's not impolite to interrupt others' speech, but because of inertia of thinking.Once Yu Fan's thinking became active, it was like a running train, and it was difficult to stop the train.Therefore, anyone who is familiar with Yu Fan can understand Yu Fan's "impoliteness".

Yu Fan continued: "Look, Lai Bushuang's lips are gray-black, and his body spots are blue-purple. This is a symptom of potassium chloride poisoning!"

Yu Fan then gently pointed to Lai Buku's arm, and continued: "Look, there is an obvious needle hole on his arm, which further supports my inference. The murderer injected Lai Buku into his body through an intravenous injection." The high concentration of potassium chloride caused Lai Bukuan to die of heart failure in an instant!"

Chen Xingyang raised a question: "Wait a minute, Lao Yu, you said the murderer? How do you know that Lai Bushuang committed suicide instead of suicide?"

Yu Fan: "I didn't find the syringe at the scene. Unless he threw it out of the car window immediately after the injection, it must have been done by someone else. Besides, judging from his current death posture, it is impossible for him to Throw the needle out the window!"

Chen Xingyang: "My God! This is a murder!"

"Found it! The situation of people getting on and off the train from last night to now." The conductor came back panting.

Chen Frameyang: "Say it!"

Train conductor: "Because the stations we passed last night were all small stations, no one got on the soft-sleeper car. However, a soft-sleeper passenger got off the train, and he was very strange. He should have got off at TGJ station around [-]:[-] in the morning. , but he chose to get off early at the YPG station at midnight."

"Who is it?" Guo Na asked quickly.

Train conductor: "This man, let me see, his name is Ma Wu."

Horse dance?Isn't this the angel investor?Yesterday I came to talk to Zuo Zircon about cooperation, and it is said that I also talked to Lai Bushuang.Could it be that……

Zuo Zi came to his senses and rushed forward, rummaging back and forth on Lai Buxing's waistband to find something.

Chen frame Yang quickly asked: "Professor Zuo, what's wrong?"

Zuo Zircon said anxiously: "U disk! The U disk is gone!"

Chen Xingyang suddenly realized, isn't that USB flash drive the invaluable and important data that Professor Zuo said?The angel investor named Ma Wu must have known the secret in the USB flash drive, and Lai Bushuang refused to cooperate and had an arrogant attitude, so he was murdered!Killed someone, and then robbed the U disk.After he killed someone, he hurriedly found the nearest station and got off early!Ok!It must be so.

All the logic made perfect sense, Chen Xingyang picked up his mobile phone, ready to contact the command center immediately, apply for support, and arrest Ma Wu.

At this moment, Yu Fan stood up suddenly, grabbed Chen Xingyang's hand and said, "No! He didn't get off the train! He's still on this train!"

　It is loneliness that makes you outstanding, not gregarious - Potassium Chloride
　　
　
(End of this chapter)