Controlled experiment

Total darkness.

Du Yusheng's first thought was that the power was cut off.

But this is a hospital, where the power can be cut off, how can the hospital be cut off.

The whole ward was instantly plunged into darkness. Du Yusheng has been in this industry for many years and is not afraid of the dark.However, a murder case just happened in this ward. A few hours ago, Chen Xin was still lying on this hospital bed waiting for someone to discover his death. In addition, Du Yusheng was standing on a chair looking at the darker vent inside. Thinking about it like this made me feel a little uncomfortable.

Du Yusheng wanted to call Li Yao back.

But Li Yao didn't seem to be in the ward.

Du Yusheng got off his chair and stood in the center of the ward.

The ward and the whole floor were dark, except for the street lights outside the windows, there was no light source at all.Du Yusheng's eyes looked at the door of the ward, and he suddenly had a feeling, a feeling of seeing the murderer.That night, the murderer passed by the door in a white coat and came into the room. He stood in front of Chen Xin's hospital bed and looked at the protagonist. Maybe he hesitated for a long time, maybe he made a quick decision. What was he thinking when he killed, and the look on his face when he killed What kind of expression did he have? He may have stayed in the ward for a long time. He was thinking about what would be the best way to kill Chen Xin. In the end, he chose a method where he could not see what Chen Xin looked like before he died, and killed him in the dark. .

Du Yusheng looked at the figure getting closer and closer in front of him, and took a step back involuntarily.

But the person in front of him didn't seem to be afraid, and was still approaching. Du Yusheng touched the gun at his waist with his backhand, and then, the light turned on.

Du Yusheng saw Li Yao standing in front of him with a look of astonishment, his eyes staring straight at the black muzzle of the gun.

"Fuck." Du Yusheng cursed, and said with a sigh of relief: "You scared me."

Li Yao smiled apologetically, turned his head and pointed to the switch on the wall, and said, "Sorry, I accidentally touched the switch, and the power was cut off."

Du Yusheng waved his hand, thinking that you startled me.

Standing on the chair again, Du Yusheng took a mobile phone to look at the situation inside the vent.In fact, Du Yusheng was quite scared. If Li Yao got closer just now, or if there was no call or the lights were not on, what would happen, Du Yusheng didn't dare to think about it.

Li Yao has been in the hospital for so many years, so it can be said that he knows the hospital well. Du Yusheng knows the probability of him accidentally touching the switch.

However, Du Yusheng felt that the most important thing to do if he liked this kind of thing was trust. Because he liked Li Yao, Du Yusheng was willing to trust him.

Aside from the weird power-off process, this power-off is really useful.

Du Yusheng discovered one thing, the light intensity in the ward just now, after the power was cut off, Du Yusheng found that the lower wall of the vent was not very dirty, there was not a lot of dust, but there was a lot of dust on the other side, as if no one had touched it. In other words, you can find the crawling track of this person along the direction where the dust is clean.

"What did you find?" Li Yao looked up at Du Yusheng.

Du Yusheng stretched his head back, puffed his two mouths, puffed his two cheeks round, and then exhaled.

Li Yao looked at it and felt that he looked like a puffer fish.

"I found that someone has stayed in this vent, and there are traces of burning in it." Du Yusheng pointed to the upper wall of the vent.

Li Yao followed his line of sight and found that there were traces of smoke on the upper wall, and the color was very light. It seemed that the burned things inside were not large in size and weight.

Moving another chair and standing on it, Li Yao poked his head in and took a look inside.

Stretching out his hand to lightly touch the wall of the vent, Li Yao said with a smile: "The surrounding area is dirty, only the bottom is clean. It seems that someone crawled here from other places. Let's follow his path and go Know where he started."

Although Li Yao said it so easily, he had a bad premonition in his heart.

"I think so too." Du Yusheng was a little excited, pointing to the road in front of the vent: "Then I'll go first, you follow me, and I can help you block if there is anything ahead."

Although Li Yao didn't expect Du Yusheng to do anything, this sentence was really pleasant to his ears.

The air vent is very narrow, just big enough for a person, so Du Yusheng took off his coat and burrowed in.The vent is a good thing, like a window that can't be closed, you can see every office, every ward along the way.Du Yusheng clamped the phone to his fingertips and carefully followed the traces on the ground.The dust was not easy to see, so Du Yusheng had to stick it very close.

Going out of Chen Xin's air vent, Du Yusheng didn't know how long he had been crawling. Du Yusheng only felt that his hands could no longer hold the phone, and suddenly there were no traces of crawling in front of him.

It seems to have reached its destination.

Du Yusheng heaved a sigh of relief, took off the vent below, and drilled out from inside.

The moment Du Yusheng saw this room, he felt like he was dying.

This room is an office, the lights are not turned on in the office, only a small night light on the desk is on, not only that, there is also a bowl of cold beef noodles on the desk, and the disposable chopsticks are placed next to the beef noodles , There is also a book that Du Yusheng just flipped through on the chair.

This fucking is Li Yao's office.

Du Yusheng looked back at Li Yao, who also looked astonished.

"It's so fucking weird." Du Yusheng sat down on the sofa and said, "This murderer is not only wearing your clothes, but he also crawled all the way from the vent in your office to Chen Xin's ward. I really can't think of it." clear."

It seemed that he was really anxious, Li Yao looked at Du Yusheng's face a little red.

He poured a glass of water from the thermos at the back and handed it to Du Yusheng.

Li Yao also poured himself a cup, held it in his hand, bit his mouth, and smiled slightly: "Actually, there is no need to be surprised. You also found out when you came. My office is a surveillance blind spot. This person This is also the reason why I chose my office. I took my clothes and used my vent.” Li Yao frowned, looked up at the vent mask that was removed, and said, “It seems that I have to find the maintenance department It’s not safe to fill this place up.”

Du Yusheng picked up the water and moistened his throat.

"This person knows that your office is a blind spot for monitoring, which proves that he is very familiar with your office and the hospital." Du Yusheng scratched his hair a little irritably, and said, "It's not just you who have dead spots for monitoring." Why did this person choose to be in your room? Have you thought about it?"

Li Yao thought for a while following Du Yusheng's train of thought, and said, "You mean, someone is targeting me?"

Du Yusheng nodded.

He stood up with his hands on the desk, looked down at Li Yao, and asked, "Think about it again, have you really never offended anyone?"

Li Yao turned his back to refill himself a glass of white water.

"I don't know how Chen Xin died now." Li Yao took a sip of water, and continued: "There are some things that can't be concluded yet."

Du Yusheng was really afraid of what would happen to Li Yao. At this moment, many things flashed through Du Yusheng's mind, including Zhuang Hao, Xiaobai and even Luo Yang.Zhuang Hao was also a gangster in the past, why did Li Yao know him, why did he still go to him, Xiaobai is from the police station, Li Yao actually knew Xiaobai, the stories in twos and threes are intertwined, Du Yushengsha always felt that It was Li Yao who got into trouble, and it was a big deal.It was a long time later that Du Yusheng realized how stupid he was to have such an idea, and he was a big bad guy.

"So what do you think now?" Li Yao asked.

Du Yusheng sighed, tapped his fingers on the table and said, "I think, the person in the vent is probably the murderer. A normal person stays in the vent, but there is one thing, you say Why is he burning something in the vent? Burning aromatherapy for a spa?"

Li Yao burst out laughing.

"Most people will definitely struggle when faced with someone attacking them, and sometimes they will even struggle desperately. The end of this kind of struggle is to leave their own skin tissue on the bed, but I just looked close to the bed, and there is nothing on it. skin tissue." Li Yao added: "It is estimated that your colleagues have also discovered this."

Du Yusheng scratched his face and nodded.

"If we assume that the person in the vent is the murderer." Li Yao stretched out a finger and said, "Either, he changed the bed sheet after the murder, or Chen Xin didn't struggle." Du Yusheng also thought of these two points before However, after Li Yao said this, Du Yusheng felt that his idea was convincing, after all, there were people who had the same idea as him.

"If Chen Xin hadn't struggled before his death, then the burning thing is probably drugged."

Li Yao nodded and said, "Yes."

"Can drugs kill you?"

Li Yao said: "No."

Du Yusheng touched his forehead and let out a heavy sigh, "So how did Chen Xin die?"

The author says:

So how did Patient Chen die?