Controlled experiment

Chapter 10

There is a word "白" in Xiaobai's name, and he also looks fair and clean, so once his face turns red, it is particularly obvious.

Du Yusheng's office didn't turn on the air conditioner, and it wasn't too hot. Xiaobai didn't know why he was changing back and forth between Qin Yan and Du Yusheng with his red face and eyes. He wanted to see something on their faces. Come on, it's a pity that Qin Yan was wearing a mask, and Du Yusheng was smoking, so he didn't even notice the fart.

"Bronchospasm?" Qin Yan couldn't believe it.

"Yes." Du Yusheng nodded, "Luo Daheng's asthma was very severe at that time, and it was so severe that it would be induced by inhaling a large amount of dust in a short period of time. I have confirmed this from his family doctor Li Yao. So the case happened On the same day, Luo Daheng had an asthma attack due to inhalation of dust. He wanted to save his life with albuterol, so he sprayed the bottle that had been replaced with high-concentration nitroglycerin. Then we saw a result, he died gone."

Du Yusheng extinguished the cigarette in his hand, paused for a moment and continued: "There was not much left in the bottle of albuterol in his hand. He thought it was not enough medicine, so he wanted to open a new bottle. I found two bottles of salbutamol." Qin Yan didn't know when he took off the rubber gloves and threw them in Du Yusheng's trash can, then stood beside the sink and washed his hands in a regular manner, seven-step hand washing method, he washed slowly, listening to Du Yusheng If so, my mind didn't stop.Turning around, he took off his mask and looked at Du Yusheng with a tired face.

"What if Li Yao lied?"

Qin Yan's face looked tired, but his eyes were unusually bright, looking straight at Du Yusheng.

The corners of Du Yusheng's mouth trembled inaudibly.

"He didn't lie."

"Who can guarantee it?"

Qin Yan wanted to remind him.

"He won't lie." Du Yusheng picked the edge of the corner of the table with his fingers, raised his eyelids and looked at Qin Yan and said, "You are also a doctor, so you can verify it yourself. Besides, even if Li Yao lied, Daheng Luo died of taking nitroglycerin. The overeating is true, the toner in your hand is true, and the albuterol bottle has been changed, Qin Yan, what are you trying to say?"

Qin Yan said with a cold face: "You know in your heart that Luo Daheng only saw two people that night. He has severe asthma and takes medication frequently, so once this bottle of medicine is changed, he will probably use it immediately. Died at home, there is only one possibility, and that is that the bottle of medicine was replaced that night."

Du Yusheng clicked his tongue twice and grinned.

He is a person who doesn't like to see other people being serious, especially around himself.

"Li Yao has too many doubts and things that don't make sense." Du Yusheng stood up, with his hands on the table and a cigarette dangling from his mouth. "Every time I meet him, his words always seem to be planned, he is smiling. , but his eyes did not smile."

Du Yusheng took out another cigarette. He wasn't very addicted to cigarettes, that is, he only smoked one when something bothered him, but he had already smoked three cigarettes in less than an hour since he entered the house.

"But Qin Yan, you are half right."

The cigarette in Du Yusheng's hand was pressed into the ashtray by the owner before he took a few puffs and extinguished it violently.

"In addition to Luo Daheng, I met two people that night. In addition to Li Yao, there was also Luo Daheng's illegitimate son. I ignored him all the time. Because I never figured out how Luo Daheng died." Du Yusheng paused for a few seconds Said, "...It's also because Li Yao is so eye-catching."

His voice was very low, almost uttering these words with breath.

"Luo Yang?" Qin Yan sneered, "Luo Daheng's own son, what do you want to say?"

"I have been unable to figure out one thing. The housekeeper said that he wanted to kill Daheng Luo because he saw the inheritance distribution document on Luo Yang's desk. If I were an illegitimate child, I would definitely cover up this inheritance distribution document." Strictly speaking, most of the inheritance above is for me, and no one can see this thing. Then why did the housekeeper see it so easily?" Du Yusheng stretched out a finger, "I think Luo Yang deliberately let him I see."

Luo Yang has been abroad for the past few days. Du Yusheng checked the exit records. Luo Yang left the country after meeting Luo Daheng. The official meaning is that he went to handle Luo Daheng's foreign trade.After Luo Daheng died, Luo Yang who got the news was rushing back. Du Yusheng looked at the calendar on his desk and guessed that the date of Luo Yang's return should be within a few days.

Obviously no matter when Luo Daheng dies, Luo Yang will be his heir, so why bother.

Du Yusheng couldn't figure it out.

Qin Yan's deduction is correct. Once the method of killing is confirmed, there are only two suspects left.

Either Li Yao or Luo Yang.

After Qin Yan and Xiao Bai left, Du Yusheng stayed in the office by himself, and suddenly felt that the room was a bit big.Behind the cabinet in the office is a small blackboard that has not been used for several years and is full of dust.Du Yusheng wiped it with a tissue and took out the black marker pen in the drawer.

The butler was the first to be discovered. He admitted to having an affair with Mrs. Luo, and also admitted that he had used cold medicine instead of nitroglycerin in order to cause Daheng Luo's death from a heart attack.

Later, bruises were found around Luo Daheng's mouth, which confirmed that Luo Daheng did not die from not taking nitroglycerin in time, on the contrary, he was due to overdose.

In Luo Daheng's autopsy report, a note with a control experiment was found in his stomach, so Du Yusheng went to see Li Yao, one of the last two people Luo Daheng met before his death.At first, Li Yao refused to admit that he had been at the scene of the crime, but changed his mouth after watching the surveillance video.When he broke into his house at night, Xiaobai saw Li Yaocong leaving downstairs, but he picked the lock and found that Li Yao had never left.Li Yao is a doctor, but his bank card is like a capitalist, and money is put into his card every month.He has a villa and a luxury car, and he is always smiling, but you don't feel how happy he is.After several back and forth negotiations, Du Yusheng couldn't figure out this person at all.

Then, Zhuang Hao died.

Zhuang Hao was the person who had the least relationship with Luo Daheng in this story, but he died at this time.

He almost died himself.Du Yusheng touched his chin and drew a few long lines on the blackboard.

Li Yao almost died too.

So why would someone want to kill themselves, in other words, who exactly is that person trying to kill.

The most critical points in discovering the cause of Luo Daheng's death were the toner in his hand, the bottle of albuterol, and the physical condition provided by Li Yao.

Li Yao is a doctor, he knows how to save people, and he also knows how to kill people. He is the most qualified person to commit a crime, but he has no motive and no evidence.

Luo Yang is Luo Daheng's illegitimate son, without meeting him, Du Yusheng still can't make a conclusion.As far as the present is concerned, he not only has no motive, but also has no criminal conditions. Luo Yang has not graduated from college, and he knows that the probability of killing people with nitroglycerin is very small. If he kills Daheng Luo, there will be no benefit except that he can get his inheritance sooner.

Why did Li Yao provide Luo Daheng's physical condition to himself at that time? Now that I think about it, it was really abrupt to say that in that scene.

Du Yusheng scratched his head, took a pen and drew randomly on the blackboard, he suddenly had a bad guess, if Li Yao knew who the murderer was.

This series of people didn't have much intersection, so why did they all pop up at this time.

Why did Zhuang Hao die?

Why would someone design an explosion.

None of this has anything to do with Daheng Luo, why did it happen at this time.

What exactly does the note from the controlled experiment mean.

Didn't the other party do anything else after stuffing the note?

Du Yusheng looked at the black and white that he had painted into a ball and sighed. He was really not suitable for drawing.

Someone knocked on the door at this time, and Du Yusheng felt that his blackboard was ugly, so he scribbled on it a few times and asked him to come in.

"Brother Yu, did you bring back the one named Li Yao?"

Du Yusheng nodded and said nothing.

"He finished counseling in his heart." The man said, "Should I let him go back?"

The explosion right in front of our eyes can be said to be big or small, no matter what kind of person Li Yao is, if there is any shadow left in this kind of matter, Du Yusheng will feel uncomfortable, so he calls for psychological counseling, and he knows I made it unnecessary, but I still wanted to leave something on Li Yao.

"You tell him to wait for me for a while."

Du Yusheng clenched the pen tightly in his hand and sighed heavily.

Looking at the illustration of half of the wiped, Du Yusheng discovered one thing, all these things are like a circle, and he is standing in the very center of this circle.