Controlled experiment

Xiaobai was woken up by the phone.

Pick it up and take a look, it's 03:30 in the morning.

Du Yusheng scolded him head and face last night. After scolding, he felt lighter, and Xiaobai couldn't fall asleep.I fell asleep at about one or two o'clock in the morning in a daze, and I was woken up by this phone call just after two hours of sleep.

After taking a look, it was Du Yusheng who called.

Xiaobai thought it was weird, wouldn't he sleep?It's an owl.

Cao Nima in his heart, but he has to be kind on his mouth.

"Brother Yu, what's the matter?"

Du Yusheng seemed to be still on the road, and Xiaobai heard the car horn honking inside.

"One thing, I just saw the key to Luo Daheng's villa at Li Yao's house, please check his assets and bank accounts."

"...Brother Yu, it's only three o'clock." Xiaobai reminded.

Du Yusheng said with a smile on the phone: "Isn't it? It's only three o'clock. Just give it to me when you go to work at eight o'clock. I'm not in a hurry."

Xiaobai almost laughed angrily, "Brother Yu, you really care about your subordinates."

This is an ironic sentence, but who knew that Du Yusheng smiled heartily and said: "It should be."

Xiaobai couldn't even laugh, so he hung up the phone and cursed that he should be a fart.

Who told me that my fate is good, and an owl is reincarnated.

On the morning of the third day after the incident, Du Yusheng put his feet on the coffee table in front of him and sighed deeply.

He still can't figure out something.

While making the second cup of tea, Xiao Bai ran in from outside sweating profusely.

"Brother Yu, what you said on the phone at the hospital that day, they checked it out, and the housekeeper did show up at the pharmacy that night, and found the receipt for the day's shopping in the trash can of his house. The same cold medicine that he took before, and the bottle of medicine was also found in his home."

Xiaobai wiped the sweat beads off his face.

He squinted his eyes and smiled at Xiaobai, "The butler is so careless, why don't you even know how to dispose of the receipt?"

Xiaobai nodded, "I also checked Daheng Luo's asset distribution before his death, and Mrs. Luo only accounted for 5.00% of it. Moreover, they found a replica of this asset distribution in the housekeeper's house."

5.00%?

"...It's too dark, isn't it? The wife who shares the same bed, ends up giving 5.00% to others. It hurts feelings." Du Yusheng shook his head and said: "Except for Mrs. Luo... most of them were given to someone .”

Xiaobai flipped through the information in his hand, "Except for public welfare, most of them were given to his illegitimate son Luo Yang."

Luo Yang?Du Yusheng had the impression that Luo Yang also came to see Daheng Luo the night he died.

"Is Mrs. Luo aware of this property statement?"

Xiaobai shook his head, "Daheng Luo's lawyer said that no one knows about this except Daheng Luo himself."

"Then how did the housekeeper know?" Du Yusheng touched his chin, and a thread came to his mind.

The housekeeper didn't know what channel he used to learn about Mrs. Luo's property distribution, and he felt resentful. Coupled with the complicated relationship between him and Mrs. Luo, he must have disliked Daheng Luo in his daily life.Then he went to the pharmacy to buy medicine, and took advantage of his status to secretly exchange for Daheng Luo's nitroglycerin.

"...But Luo Daheng died of an overdose." Qin Yan continued, "Isn't this inconsistent?"

Du Yusheng snorted through his nose and waved his hands feebly.

"I'll know if you can examine it." Tilting his head and looking at Xiaobai, he said, "Did you bring him back?"

Du Yusheng sent Xiaobai to interrogate, and he sat in the office in a daze.

After returning home last night, my mind was in a mess like a movie. Du Yusheng was a little tired, leaning on the sofa lifeless, and his mind was a little empty. .

Li Yao.

He is a very strange person. From the first time he saw him, Du Yusheng felt that this person was hiding something.After the trial, I felt even weirder.

It's not just an unreasonable suspicion. Anyone who knows that nitroglycerin can kill people in addition to curing diseases, except for Luo Daheng who often takes it, this person should have a little medical background. After researching, the size of the paper strips is not common and needs to be cut, and this person cuts very thin, straight and horizontal, not even the paper scraps on the sides, and the squares are stacked neatly, so, Du Yusheng I feel that this person is also very rigorous and careful in life.Walking along this line, no matter how you think, there is something wrong with Li Yao, but this person is supporting himself with some indefensible lies.

It's like a person who says I have a problem, come and check me out.

"...Do you think the butler is the murderer?"

Du Yusheng didn't realize that Qin Yan hadn't left yet because of the sudden words in the office.

Changing to a comfortable position, Du Yusheng shook his head.

"He doesn't look very smart." He said, "A person who doesn't even know how to deal with receipts..."

Qin Yan nodded, "So what do you think now?"

Du Yusheng's feet on the coffee table finally fell to the ground. The water in the teacup was already cold, but he still held it in his hand and watched the water inside circle around to form a vortex. Qin Yan held his wrist and added Give him some hot water.

"There is one thing I can't figure out now." Du Yusheng put the teacup aside and said, "As I said before, the time difference between the three people he met before his death and the time of his death is too far away. One of them killed him, so why did it take so long for him to attack. So I think, it can only be that Luo Daheng took the medicine on his own initiative, so there is only one reason why he poisoned himself, that is, Luo Daheng did not Know what you eat."

Qin Yan touched his chin.

"So the key point now is how the murderer killed people."

Du Yusheng nodded, and said another conjecture of his own, "And it is very likely that the murderer is not alone."

It was almost two o'clock in the afternoon when Xiao Bai came out of the interrogation room. There were beads of sweat on his head. He had just been transferred from the lower class. Even if he had some experience, he would inevitably be nervous.

"The housekeeper admitted that he had an affair with Mrs. Luo." Xiaobai said, "He also admitted that he made the cold medicine that Daheng Luo replaced before he died. He just wasn't satisfied with the 5.00% that Daheng Luo gave Mrs. Luo, and his brain was not working. Come up with such a stupid idea. But he doesn't admit to overdosing on nitroglycerin, and it seems that he doesn't know that this thing can kill people."

It's the same as Du Yusheng thought.

"He was picked up by someone."

Xiaobai nodded, "He also revealed a clue. The relationship between the illegitimate son Luo Yang and Luo Daheng is very bad. He always comes to his father to ask for money, and the two of them quarrel when they are together, and they seem to be quite disobedient. There is a lot of scolding this unfilial son. I am very surprised that you said you don't like it, and you still give him so much money."

If you don't like it, give him the money.

Du Yusheng suddenly replaced himself, and Mr. Du couldn't look down on his skin. He scolded him every time he saw him, but his pocket money was never short.Is this Luo Daheng still a loving father?

"Where is this Luo Yang now?"

Xiaobai said: "He went abroad after meeting Luo Daheng that day, as if to handle some business for his father, now that he knows his father is dead, he is rushing back."

Du Yusheng smiled and said, "I'll become a billionaire when I come back." After thinking for a while, he added: "What about Li Yao, did you ask?"

Xiaobai nodded, "The housekeeper said that Li Yao is a very responsible doctor, and he doesn't talk much. Apart from his daily work, he seldom hears other communication from his mouth." Knowing that Du Yusheng wanted to ask, Xiaobai Immediately answered, "I'm still investigating Li Yao Bank, and the results are coming soon."

"Success." Du Yusheng instructed Xiaobai: "You take a few people to watch that Luo Yang, and when he comes back, find a chance to ask a few words to see his reaction."

When Du Yusheng was about to leave work, he went to the forensic room, wanting to ask Qin Yan to come back to discuss the case, but when he went in, he realized that it was already time for him to leave work.

Qin Yan's forensic room is also known as the funeral parlor in the bureau. As soon as he entered the door, the cold wind gushed into his chest. Du Yusheng was prepared before he came, but when he turned on the light, he was still startled by the various specimens on the cabinet next to him.Sometimes Du Yusheng thought about it, Qin Yan put these things on the table, and he was not afraid that he would be confused one day.

In his drawer, there were several autopsy photos of Daheng Luo, and Du Yusheng took them out to look through them.

Sometimes I feel that Qin Yan is like collecting stamps, and puts the disemboweled things in the drawer.

Turning to the last two pages, Du Yusheng stopped.

It's Daheng Luo's thumb.

Du Yusheng remembered that at the scene of the crime, there was something black that looked like toner on Luo Daheng's thumb.

This toner, Du Yusheng, didn't even think about it. Could it be that he held the nitroglycerin tightly before he died, causing the label to stick to his thumb?

Now that Qin Yan is off work, Du Yusheng doesn't plan to call him back. The recent matter of Luo Daheng is not a problem for everyone to waste here.

Come out from the bureau, it's already dark outside.As soon as it entered late autumn, the sky became dark very quickly. Du Yusheng looked up at the stars in the sky and sniffed.His car is parked in the underground parking lot. Du Yusheng doesn't drive often. Sometimes he has a bad temper and doesn't like anyone. He likes to race with taxis. Let's go through the traffic lights. Du Yusheng also likes to rush ahead of others.

Fasten your seat belts and are about to set off when your cell phone rang.

Du Yusheng looked down at the call from his dear mother.

He is kind and filial.

He picked up the phone without hesitation, and first listened to his mother's scolding, similar to how long you haven't come home to take a look, Du Yusheng didn't dare to reply, he could only lower his head and agree.

But in the end it was his own son, Mrs. Du cursed a few words and calmed down.

"What do you want to eat on the weekend, I'll ask someone to make it for you."

The old lady's face changed very quickly, and Du Yusheng couldn't accept it for a moment. He rubbed his hands back and forth on the seat belt, unable to utter a word.

Mrs. Du said with a sneer: "Three feet can't make a fart. I'll let them watch and do it."

"Ah, okay."

There are rare times when Du Yu is cowardly.

Before hanging up the phone, Du Yusheng called the old lady to stop.

"The only one...is my son in our family?" Du Yusheng thought for a while and added a sentence: "There is no such thing as a family ethics drama, and there is a younger brother or something along the way, right?"

"I said Du Yusheng, you're fine, what are you thinking about?" The old lady seemed to be playing mahjong, when she heard a muffled sound coming from the phone, "Your father and I are both at the same age, and you expect us to give you a second child?" ?”

"No, no, no." Du Yusheng quickly shook his head, "The money is not enough, forget it."

After hanging up the phone, Du Yusheng's ears finally became quiet.

The old lady's family scolding sometimes wakes him up, and Du Yusheng feels that his mind, which was a little muddy just now, has been sobered up.Turn on the navigation and start looking at today's road conditions. Today, the main road is under construction, and the east side has been somewhat blocked.

Originally, I thought it would be quieter if I went around the distance, but I didn't realize that it was still blocked, and the time wasted on the road was twice as much as usual.

Mr. Du's house was the first one. When Du Yusheng passed by, he stepped on the gas pedal and went there, fearing that his mother would find out from the window and rush out to scold him in front of all the rich wives.

A cordon was pulled around Daheng Luo's villa, and the car lights shone in a green light from afar.There was no parking there, so Du Yusheng could only park the car in front and walk over by himself.When parking, there was a white Bentley next to him. Du Yusheng scratched his head, looking at this car in a daze.

People's living standards are really getting better and better.No wonder the news broadcasts that GDP is rising every day. From driving in, this is the next few Bentleys.

Coincidentally, there was someone in the Bentley, Du Yusheng was standing beside him, and then he saw Li Yao get out of the car.

He was wearing a long dark overcoat, and he was tall, which made him stand out even more.The coat was naturally open, and inside was a white T-shirt.Li Yao's dress is very monotonous, without any unnecessary details, but it is very comfortable to look at.As if he forgot something, Du Yusheng saw him take a few books out of the car.

"Yo, Doctor Li?"

When Li Yao heard someone calling his name, he turned around naturally.

Du Yusheng stood straight beside his car, looking at him with a smile.

At this moment, Du Yusheng was a little annoyed. He knew that he had brought his Porsche here. Now, compared with the Bentley, the ten-handed classic car seems a bit lacking in confidence.

Sure enough, Li Yao looked at him.

"Deputy Du's car is really unique."

Du Yusheng was a little embarrassed, scratched his head and explained in a panic: "...It's easy to mess up, so it's easy to recognize."

Li Yao pursed his lips and smiled, "It's easy to find."

There is a gray door on the black car body. Because the lights on both sides are not easy to fit, Du Yusheng painted orange on them with an orange pen to make a fake one. Fortunately, the lights on both sides are not often turned on.It was not something to attract attention at first, but Du Yusheng found that Li Yao's gaze had been staying on his own car lights.

Du Yusheng coughed softly, "It's so late, why is Dr. Li here? Whose private doctor is it?"

Li Yao shook his head and said, "No. I still have some things to move here."

"move?"

Du Yusheng felt his head start to whine, and he did hear from Li Yao last night that he had just moved into the community over there not long ago.

"...You used to live here?"

"It's not considered living, I don't come here often." Li Yao recalled for a while and said: "I don't come here a few times in a year, I saved some things and moved here this time."

A young doctor can drive a Bentley and afford a villa.

Du Yusheng sneered, "The dead Luo Daheng also lives here."

Li Yao was not annoyed, and raised his head slightly.

"I heard that Deputy Du's father also lives here."

It's a blunt knife, and Du Yusheng has a new understanding of him.

Li Yao held two books in his hands, and more than one page was marked on them.

"Can I read the book in my hand?"

Li Yao looked at Du Yusheng, "In what capacity? A policeman?"

"You can think so."

Li Yao did not refuse, and handed the book in his hand to Du Yusheng.

In fact, Du Yusheng couldn't understand medical books. The vocabulary in them was long and awkward. I had read them at Qin Yan's before.There are very few notes on Li Yao's book, and there are almost no traces of scratches. The marked pages are easy to be flipped. The clinical application of nitroglycerin.

Du Yusheng raised his head and looked at Li Yao, "What did you do that night?"

Li Yao sighed, "I don't want to repeat what the police station said."

"Then do you know Luo Yang?"

Li Yao thought for a while, "He is Luo Daheng's illegitimate son. I have met him several times, but I don't know about Mr. Luo's family affairs. However, I remembered one thing. I don't know if it will help you. Mr. Luo these few days Months of severe asthma."

"How serious is it?"

"It's so serious that it will be induced by inhaling a large amount of dust in a short period of time." Li Yao sighed inaudibly. "Deputy Du, I have nothing to do with Mr. Luo's case. He broke into my house, tricked me, and investigated me. , but there is one thing, if you put all your energy on me, you will get nothing."

Du Yusheng suddenly laughed.

"I also sincerely hope that this matter has nothing to do with you."

Through the light, Du Yusheng saw a little disbelief in Li Yao's calm eyes, and he lowered his head and grinned.Du Yusheng told many lies and told many lies, but these words came from the heart.