Controlled experiment

It was already 09:30 in the evening when we came out of the police station. It was difficult to hail a taxi on this road section at this point, and Li Yao did not drive over. Fortunately, Du Yusheng had a car parked in the underground parking lot of the police station. A classic car with many hands and ten repairs.Usually, Du Yusheng thought nothing of it, but he was not very willing to drive this car in front of Li Yao. What kind of person Li Yao was, he looked at him as if he was driving a horse-drawn carriage into the city.

There was no other means of transportation, so Du Yusheng gritted his teeth and thought it would be better than standing on the curb and waiting for the two of them.

Du Yusheng asked Li Yao to wait on it, and it took Du Yusheng a long time to drive the car out.

Li Yao stared at the side lights marked with colored pens on his classic car, and was stunned.

"The traffic police don't care about this kind of car on the road?" Li Yao joked, "Do you have enough points in your book?"

Du Yusheng touched the steering wheel, and said with a smile: "It's okay, the traffic police uncle went to bed and eat after get off work at night. I have a lot of points, so I can stand it."

Li Yao opened the car door with his back bent and sat in.

Although Du Yusheng's car has been repaired with ten hands and ten hands, it has a good foundation, it is very comfortable to sit on, and the noise is within an acceptable range.Not quite the same as it looks.With Du Yusheng's character, it could be that this car has a story, so he won't keep it.

Li Yao tentatively asked, "Actually, I wanted to ask last time, Master Du opened this...?"

There was a red light ahead, and Du Yusheng stopped the car a few centimeters behind the zebra crossing. The lights in the car were not turned on, and Li Yao could only see the look on his face through the street lights, which was a little serious and a little sad.

Du Yusheng pressed the button on the steering wheel, smiled reluctantly and said: "...my dad's car, my dad used to drive this car, but it was crashed, and I couldn't bear it, so I repaired it. I almost forgot about it until now. It’s a car, but I still can’t bear it.”

Du Yusheng felt that he had explained a little too much. He was afraid that Li Yao would see something, so he held back two words: "Love the old."

Coming out of the police station is the main road of the city. Du Yusheng was a little flustered by the question just now, and he didn't realize it until he drove a street away.

"No, it's all over." Du Yusheng looked at the time in the car and said, "Apart from barbecue, crayfish, and there is a snack street over there, which one do you want to eat?"

Li Yao turned on his phone and took a look, he thought for a while.

He smiled and said, "Don't you know how to cook?"

"...Home, eat at home?"

Du Yusheng blinked his eyes in astonishment, patted the steering wheel lightly to hide his joy, and grinned almost to the ears.

"But at this point... the vegetable market is basically closed."

Du Yusheng rubbed his face and looked at Li Yao through the rearview mirror, who was looking down at his phone.Originally wanted to ask him what he ate, Du Yusheng opened his mouth, but finally gave up.He felt that Li Yao was not hungry at all, maybe he just said it casually.

This thought made Du Yusheng resentful.I drove around the wholesale market. Just as Du Yusheng thought, the vegetable market closes at five or six in the afternoon, and few of them are open until this time.When he was about to leave, he found a small shop that hadn’t closed. The owner probably lived here and was not in a hurry to go home. Unfortunately, the rest of the dishes were not very good. Du Yusheng picked a fish that could be seen and took a small handful Green onions, before leaving, I gave the boss a cauliflower.

Opening the car door, Du Yusheng put the ingredients in the co-pilot, turned around and asked, "Do you eat fish?"

Li Yao stared at the jumping fish in the plastic bag for a moment. He didn't want to admit that he just said it casually, but he didn't expect Du Yusheng to take it seriously and take it so seriously.

"Eat." Li Yao nodded and said with a smile, "I didn't expect it to be open so late."

Hearing Li Yao's answer, Du Yusheng smiled and started the car.

"This little food is not fresh. If you really want to eat it, you have to come earlier next time. If you can pick the good ones, now they are all leftovers."

All the way home, Du Yusheng chattered endlessly, but Li Yao didn't interrupt much, and kept looking at his phone with his head down.

This state continued until the two returned home.

Du Yusheng was busy in the kitchen. Li Yao looked at the clock on the wall. It was already late at night. Du Yusheng seemed to be tireless. He rolled up his cuffs and wore a floral apron bought from the supermarket downstairs. He looked like he was cooking He was much more proficient than solving cases, Li Yao leaned on the sofa and looked at Du Yusheng's back, grinning involuntarily.

To be honest, Li Yao was not such an easy-to-express person at the beginning, but he gradually became infected and fell in love with the atmosphere.

The fish was deep-fried in the pan until it was golden, and then stewed for another half an hour. Du Yusheng brought the fried cauliflower to the table.

Li Yao didn't know what to do, so he had to fill two bowls of rice.

The fish he cooks look bright and appetizing.

Li Yao took a piece and put it in his mouth. Du Yusheng watched from the side with wide eyes, and said with a smile, "How is it?"

"The craftsmanship is awesome." Li Yao thought of the word virtuous.

Du Yusheng pursed his lips and smiled beyond words.

Li Yao didn't talk much, and the two of them seemed quiet while eating. Du Yusheng felt a little hot halfway through eating, so he took off his coat and put it aside. He suddenly remembered something.

"Why did you leave after hearing half of it?" Du Yusheng said: "I didn't see you when I came out, so I thought you left."

Li Yao shook his head and said, "I always feel that I shouldn't participate too much."

Du Yusheng showed a look of being okay.

He smiled and said: "You can't say that, but it's exactly the same as what you said. According to Gu Qingyu's confession, when he entered the ward, Chen Xin was indeed dead, and I think Gu Qingyu was telling the truth. .There must be another person who killed Chen Xin before him."

"The person at the vent." Li Yao added.

Du Yusheng nodded: "Besides, this murderer didn't just kill Chen Xin alone. You may not know that there was a new victim who was killed at home the night before Chen Xin died. I went to At the scene, it was found that the murderer's crime habits were very similar to Chen Xin's crime scene. The bed sheet was laid after the deceased died, and the death of the deceased was also very similar to Chen Xin's. Two nights in a row, two lives."

Li Yao put down the bowl and chopsticks, aligned the chopsticks and placed them next to the bowl.

He looked at Du Yusheng and asked, "How did Chen Xin die?"

Du Yusheng shook his head, put his hands on his neck and gestured a few times.

Although he didn't speak, Li Yao understood in an instant that a medical student knew very well what was on both sides of the neck.

"...I didn't expect it." Li Yao leaned on the chair and frowned slightly: "The murderer actually knows this."

"You understand without even saying a word." There was something in Du Yusheng's words, he raised his eyelids to look at Li Yao and said, "You are as smart as him."

Picking up the clear water next to him and rinsing his mouth, Du Yusheng continued: "What's even more strange is the back, the deceased before Chen Xin, that is, the first deceased, the rooms of their two houses are facing each other." Du Yusheng was afraid of Li Yao Didn't understand the meaning, simply dipped in water and drew a few frames on the table, said: "The two buildings are next to each other, with the same door number, you can open the window and you can see the other house directly opposite, I didn't want to understand why the murderer this way."

"Do you have any doubts?"

Du Yusheng shook his head a little annoyed: "It was there before, but Gu Qingyu's suspicion is basically ruled out now. We are still investigating the surveillance around the incident, and you understand that it is easy to find a related person. If the murderer is as close as they are, If there is no relationship, it will be too difficult to find out."

Finding a needle in a haystack, Li Yao understands this truth.

"You said earlier that Chen Xin had a note for a controlled experiment in his stomach, and Luo Daheng also had it. Does the deceased have it?"

Du Yusheng picked up his chopsticks and took a mouthful of rice.

"The autopsy is still waiting." Du Yusheng chewed the rice and said, "But I think, [-]% of the time, the murderer is the same murderer." Speaking of this, Du Yusheng suddenly sighed: "I originally thought that Luo Daheng's case found the murderer." After Luo Yang, this matter should be over, but it has just begun."

Li Yao smiled and comforted: "Don't be too impatient, there will always be ideas."

Du Yusheng smiled bitterly: "I sometimes wonder if they are a criminal gang. What do these four words mean? You are a medical graduate. You should know more about controlled experiments than I do. What's your opinion?"

Li Yao froze for a moment, and put the cup in his hand on the coaster.

"I really don't know. The graduation project was made with the help of others. I just added a name."

Du Yusheng nodded, as if he believed this statement.

He stood up and walked to the center of the living room, stretched his waist, and then looked around Li Yao's entire house.

It's obviously not the first time I've been here, and I've been here many times, but every time Du Yusheng comes, it seems that he will have new insights, and each time he will have more questions.

Du Yusheng looked back at Li Yao and asked, "Your house is so big, you live alone?"

"What do you think?" Li Yao smiled and said, "How many times have you been here and seen other people around?"

"That's not true." Du Yusheng murmured: "It's just that sometimes you feel that you have two sides. One by one."

Du Yusheng's expression was not very clear, but Li Yao's expression changed behind him.

He hoped that Du Yusheng would know about Jing Mo's existence, but not now.

After cleaning the bowls, Du Yusheng arranged the bowls according to size as he did in the morning.Because the fish was cooked, the kitchen smelled a little fishy, ​​so Du Yusheng opened the window of the living room.It was almost midnight, the young people slept very late, and the lights in the residential building opposite were still on.In order to sell more real estate nowadays, the distance between two buildings is not far, especially at the corner. Du Yusheng rested his hands on his chin and looked out the window. The person directly opposite didn't even draw the curtains. On the Internet, the programs broadcast on their TV can be seen with the naked eye. Even if the program is not clearly visible, it can be guessed from the background color that it is the evening news.

Du Yusheng scratched his chin.

He thought of Qian Lao.

Maybe one night, Mr. Qian would open the window inadvertently like himself, and see Chen Xin's room opposite.

"Tell me, why did the murderer choose such two adjacent rooms to attack?" Du Yusheng looked back at Li Yao who was standing in the living room and asked, "I suddenly had an immature idea just now, tell me, would the murderer Killed wrong? He went to the wrong room and killed that person by mistake. "

Li Yao closed the professional book in his hand.

"The deceased you mentioned just now was an old man? Is there any similarity between him and Chen Xin and Luo Daheng?"

Du Yusheng blinked and asked, "What do you mean?"

"Is he a rich businessman?"

"No."

"Middle-aged?"

"No."

"Have children, have a wife, live together?"

"No."

"He knows Chen Xin and Luo Daheng?"

"do not know."

Speaking of this, Li Yao stood up, approached Du Yusheng, and asked, "Then why was he involved? He happened to be opposite Chen Xin, why do you think he has something to do with the controlled experiment?"

Du Yusheng's mind circled, Chen Xin is a wealthy businessman, and so is Luo Daheng, and from the red clay on the shoes in Chen Xin's ward, it can be known that he must know Luo Daheng, and it is very likely that he has been to Luo Daheng's villa.It's normal for rich businessmen to have contacts. Du Yusheng didn't take them to heart, but now there is an extra money old man.Qian Lao is just an ordinary retired widowed old man, why was he involved and paid the price with his life.

"...Because he is in the way of the murderer." Du Yusheng seemed to be still thinking, and slowly expressed his thoughts, saying: "The murderer wants to use his room."

Li Yao didn't say anything else, looked at Du Yusheng and smiled, returned to the sofa and reopened the professional book, and read it.

Du Yusheng was still immersed in the thoughts he had just drawn up and couldn't extricate himself.

He looked at Li Yao, and then at the window outside.

Just about to speak, the phone suddenly vibrated.

A WeChat message, sent by Qin Yan.

Only one sentence.

'No notes were found in Mr. Qian's stomach'

The author says:

It seems that the data is a bit confusing recently, I can't even see QAQ, and the layout seems to be weird. [National Treasure is a good look, and I cry while watching it.Amway to everyone.