Gu Chen ignored him and continued to make various deductions in his notebook.
Although Liao Feng's words could be used as a reference, Gu Chen couldn't believe them all. After all, his answer gave Zhang Hao, who was originally the most likely murderer, an instant alibi.
But in order to verify the authenticity, Gu Chen must go to the scene to conduct an investigation in person to determine whether what Liao Feng said is true and whether he is really not favoring Zhang Hao.
But thinking back, if Liao Feng really wanted to favor Zhang Hao, why did he tell himself about Zhang Hao, Gao Cheng and Han Jing?
He could just pretend to be deaf and dumb.
Therefore, Gu Chen couldn't make a good judgment for a while, so he could only say perfunctorily: "It's not clear at the moment. Since you said you were eating out all night, can you tell me the place where you ate, and
The specific time."
"Of course." Liao Feng readily agreed.
After waiting for Professor Zhang to come back, Professor Zhang and Liao Feng were immediately accompanying him in the entire ward.
So Gu Chen, Lu Weiwei and Officer Wang briefly explained to a few people, saved the photos of Liao Feng and Zhang Hao, and then left the scene.
Driving all the way.
When everyone found the restaurant based on the address provided by Liao Feng, the three of them immediately got out of the car and investigated the surrounding environment.
Fortunately, roadside surveillance can cover the entrance area of the store. It is already past midnight and the store has already closed.
Therefore, Officer Wang could only make a duty call to the dispatch room, and then after explaining the situation, he sent the photos of Liao Feng and Zhang Hao.
Ask the police officer on duty in the dispatch room to help find the time range where Liao Feng and Zhang Hao appeared within a specific time range.
About ten minutes had passed when Officer Wang's phone suddenly rang.
"Hello? I'm Lao Wang."
"You found it, right? Well, send it over quickly."
"Yes, yes, yes, especially the time to enter the store and the time to leave the store, as well as the front and back doors of the store. Check carefully to see if there is anyone leaving through the back door. Yes, I want it right away, okay."
After a brief communication, Officer Wang instantly received a lot of messages on his WeChat mobile phone.
Gu Chen and Lu Weiwei immediately went over to check.
Colleagues in the dispatch room are very efficient. They will edit some text as prompts at the top of each video screen.
The text at the top of the first video is about the time to enter the store.
After clicking on it, everyone discovered that Zhang Hao was driving a white car and parked in the parking space at the entrance of the store. Five people got out of the car, including Liao Feng.
After a few people paused at the door briefly, they walked in arm-in-arm.
"Look at the second video screen." Lu Weiwei couldn't wait any longer and quickly urged Officer Wang.
"Don't worry." After Officer Wang retreated, he continued to click on the next video screen.
The edited text at the top of the second video shows the time when several people left the restaurant.
It can be seen from the picture that Liao Feng, Zhang Hao, and three other colleagues came out of the restaurant with their belly rubbed.
A few people still chatted for a few words at the door of the restaurant before they dispersed.
Liao Feng left first, hailed a taxi on the side of the road and left.
Afterwards, the three companions also left in different vehicles, and finally Zhang Hao had some quarrels with the driver of an adjacent vehicle over the parking issue.
At this time, a comrade in the dispatch room sent a voice message.
Officer Wang directly clicked play.
[Old Wang, we have checked these five people for you. From the time they entered the restaurant until they came out of the restaurant, they never left the restaurant. Phew——]
After listening to the voice message, Officer Wang also held down the voice button, said "thank you" and then took the phone back.
Lu Weiwei frowned slightly and said, "It seems that Liao Feng didn't lie. They did have dinner in the restaurant tonight and never came out."
"Did we make a mistake in the direction of our investigation?" Gu Chen shook his head and said with a self-deprecating smile: "There was a suspect who could be suspected just now, but now after investigation, the suspect has been cleared."
"What can we do?" Officer Wang spread his hands, helpless.
Now all clues seem to have been broken...
Gao Cheng, who is still lying in the intensive care unit, seems to be very popular and has not offended anyone.
And in the entire Nanshan Laboratory, it was only because of Han Jing's matter that he had something to do with Zhang Hao.
But now it seems that what happened tonight has nothing to do with Zhang Hao at all.
Gu Chen walked back and forth in front of the police car. Without any thought, he said again: "Senior Brother Wang, Senior Sister Lu, I want to go to the laboratory to have a look again."
"Are you still going?" Lu Weiwei asked doubtfully.
Gu Chen nodded: "We have to go, maybe there are clues we missed before."
"Okay." Officer Wang has no clue now, so he is simply preparing to return to the scene with Gu Chen, and maybe he can find some new discoveries.
Driving a police car, the three returned to the Nanshan Laboratory.
At this moment, it is already three o'clock in the morning.
When Gu Chen came to the iron door and knocked on the door, an old man in the duty room slowly put on his coat and took a flashlight to shine at the window.
When he discovered that it was three policemen, he immediately opened the door of the duty room and came over to open the door for several people.
"Comrade police, are you here again?"
"Uncle, I disturbed your sleep." Gu Chen said.
After the doorman opened the door, he waved his hand and said, "Why bother? You policemen are the lucky ones."
"We are going to the laboratory to investigate, the laboratory tonight." Lu Weiwei said.
The uncle nodded: "I know, you go in. When you come out later, just knock on the window of my duty room and I will open the door for you."
"Thank you, uncle." Lu Weiwei said.
The three of them continued to walk forward, but when Gu Chen was halfway there, he suddenly returned to the duty room and asked the old man: "Uncle, you are on duty tonight, have you heard any explosion in the laboratory?"
"No." The guard shook his head and said, "It's cold outside. I've been checking my phone in the duty room. Apart from the movement at the door, I don't know what's going on inside the laboratory."
This chapter is not over yet, please click on the next page to continue reading! "Besides, these young people often make big noises in the laboratory. As long as no one is killed, I basically don't care."
"Okay, thank you, sir." I originally wanted to get some information from the guard, but it seemed that it was still in vain, so Gu Chen had to give up.
Arriving at the site of the incident, Lu Weiwei took out the key given by Professor Zhang and opened the laboratory door.
Then the cordon was torn off and the laboratory lights were turned on.
Suddenly, a familiar scene reappeared.
Lu Weiwei and Officer Wang put on their gloves and foot covers with some boredom and continued to inspect inside the laboratory.
Gu Chen stood at the door, closing his eyes and thinking.
Soon, Gu Chen's mind was spinning.
When I opened my eyes again, everything in the laboratory was as before, and all the utensils were arranged neatly.
Gao Chengzheng sat quietly at his desk and began to sort out the experimental materials.
Gu Chen walked gently to him and chose to sit down opposite Gao Cheng, keeping his eyes on Gao Cheng.
"Right now, only Gao Cheng is on duty in the laboratory, and he has not started any experiments. But, what happened to the explosion?"
Thinking of this, Gu Chen suddenly snapped his fingers, and instantly, there was a violent explosion in the quiet laboratory.
Gu Chen's vision went dark, and he could only hear the sound of various pieces of glass falling, making a crackling sound on the ground.
Gu Chen snapped his fingers again...
At this time, Gao Cheng had fallen to the ground, with various glass fragments stuck in various parts of his body.
Gao Cheng lay on the ground struggling in pain.
He wanted to call for help, but at this time he was seriously injured and his voice seemed difficult to reach outside.
At this moment, there were wounds all over the body, and bright red blood flowed out instantly.
The area around Gao Cheng's body slowly turned into a bright red.
He struggled a few times, his breathing getting weaker and weaker, until he slowly closed his eyes.
Gu Chen snapped his fingers, and the entire space suddenly froze.
"It's still glass, but what's the matter with no flammable or explosive items? Could it be an explosion caused by pressure?"
Thinking of this, Gu Chen suddenly remembered the big stone he had found when he checked the laboratory before, and the knotted piano wire tied to the glass bottle cap, and his whole body was flooded with thoughts.
"Are these all accidental?" Gu Chen frowned: "No, it's not accidental. These things that seem to have nothing to do with the laboratory will never appear here for no reason. Someone must have brought them in.
"
"But who could it be? What is his intention? Why would he do this?"
Gu Chen continued to use his master's level of logical reasoning to gather these fragmentary clues together and freely combine them.
But suddenly, Gu Chen seemed to think of something again, and his whole heart skipped a beat.
"Yes, I once picked up a fragment before, and the fragment smelled like alcohol, which is strange."
Gu Chen suddenly, under the influence of his master's reasonable reasoning, added the alcohol element to the conditions and continued the combination.
"There was no dangerous nitroglycerin at the scene, no gunpowder, and no traces of burning. How did the explosion occur? Is it related to alcohol?"
"But how does alcohol explode suddenly? Are there other ways that haven't been considered?"
Suddenly he thought of the big stone and piano wire again, and Gu Chen suddenly smiled: "Yes, these things seem to be used to fix the glass bottle, to prevent something from spilling."
Also at the moment of reasoning, Gu Chen used his expert-level memory again and remembered that during the previous laboratory investigation, he had discovered that the bookshelf was wet and dripping.
"Could it be that the glass bottle containing water is placed on the bookshelf?" Gu Chen snapped his fingers instantly.
At this moment, a large glass bottle immediately appeared on the bookshelf, and Gu Chen looked back and saw that it was only one meter away from Gaocheng.
"I know, I know." Gu Chen was suddenly overjoyed and said with a smile on his lips: "This is how Gao Cheng was injured. The glass bottle suddenly exploded with great power. The various fragments caused Gao Cheng, who was unprepared, to be seriously injured."
Gu Chen also used his expert-level memory to remember that the wound on Gao Cheng's body lying on the hospital bed was indeed on the left side, which exactly matched the position of Gao Cheng's desk and bookshelf.
"In other words, the glass bottle did explode from the bookshelf, but what was it?"
"Alcohol, water, big rocks, piano wire."
After listing the clues he found during his investigation, Gu Chen suddenly combined these four elements again.
"First of all, it is a glass bottle. Alcohol is easy to evaporate, so it must be contained in the glass bottle. And the piano wire tied to the glass bottle cap must be to fix the bottle cap and prevent the contents from coming out due to pressure."
"And that stone, yes, the bottle cap is smooth and it is difficult to suppress the contents of the bottle. So if there is a stone on top and the stone is firmly tied to the bottle cap with string wire, can this be solved?
question?"
Gu Chen's thoughts were further opened up. The conditions just given seemed to be able to be combined at this moment.
"What does he want to do? What does the murderer want to do? Why are alcohol and water in a glass bottle?"
"Also, since the mouth of the bottle is firmly sealed, if the glass bottle wants to blow up Gao Cheng and seriously injure him, there must be extremely strong pressure in the glass bottle, but..."
Gu Chen's mind is now full of water and alcohol, but he still can't figure out how the two mixed together can create so much pressure.
Or does it exist in another form between the two?
"The bookshelf is wet and dripping. It seems that the glass bottle must be filled with water, but the water will not explode."
"If it's not water, what is it? Is it ice?"
Thinking of this, Gu Chen suddenly raised his head: "Yes, it's dry ice, yes, it's dry ice."
"Dry ice and alcohol are mixed together, and the temperature can drop to about -80 degrees Celsius. How could I forget this?"
This chapter is not over yet, please click on the next page to continue reading! Gu Chen is also using his expert memory to try to recall the information he consulted in the library before.
I did see relevant knowledge at that time, but because it was so far back in time, my memory is a little blurry.
But when Gu Chen thought of dry ice and alcohol, that vague knowledge seemed to light up again in an instant.
"When dry ice and alcohol are mixed together, the temperature can drop to about -80 degrees Celsius, or even lower."
"The composition of dry ice is solid carbon dioxide, which will sublimate into gaseous carbon dioxide at room temperature. The chemical reaction is a change in the formation of new substances."
"But when dry ice and alcohol are put together, the dry ice will sublimate and cool down, because the freezing point of alcohol is -117 degrees Celsius."
"Although dry ice sublimates and absorbs heat, the temperature will not drop to -117 degrees Celsius, so the alcohol will not solidify."
"But alcohol is made up of alcohol molecules, and dry ice is made up of carbon dioxide molecules. These two particles are quite stable and will not recombine to form new molecules, so the dry ice will sublime, and the alcohol will still be in a liquid state."
"Adding dry ice to alcohol will only make the temperature lower, down to -117 degrees. Isn't that the principle?"
"And the water in the glass bottle freezes, expands in volume, and explodes."
Thinking of this, Gu Chen probably already knew how Gao Cheng was injured, so he immediately snapped his fingers.
The world was spinning before his eyes. When Gu Chen opened his eyes again, Lu Weiwei and Officer Wang were still searching the room carefully.
But the two of them seemed to have gained nothing as before.
Gu Chen shook his head with a smile and walked into the laboratory pretending to be nonchalant.
"Junior Brother Gu." Lu Weiwei, who was squatting on the ground picking up glass, suddenly turned to look at him: "I think there seems to be some alcohol smell left on these fragments."
Putting it on the tip of her nose and sniffing it, Lu Weiwei confirmed: "It's alcohol. This glass bottle must have been filled with alcohol before."
Gu Chen pretended not to know anything and walked up to Lu Weiwei calmly. Then he followed her example and put the shard of glass on the tip of his nose and smelled it.
"How's it going? Do you smell anything?" Lu Weiwei looked straight at Gu Chen.
Gu Chen's expression was stunned, and he said with a look of surprise: "Senior Sister Lu, you are observing very carefully. Yes, it smells of alcohol, but the alcohol is in a glass bottle, how can it explode smoothly? Could it be that the alcohol in the bottle explodes smoothly?
under pressure?"
"Why is there so much pressure?" Police Officer Wang, who was also collecting clues on the side, asked.
Gu Chen shook his head as if nothing had happened, and then asked Lu Weiwei: "Senior Sister Lu, did we find a piece of piano wire tied to a fragment of a glass bottle cap before?"
"Yes." Lu Weiwei nodded fiercely and continued to add: "Not only did I find piano wire, but also big rocks."
"Piano wire? Big stone? The piano wire is still tied to the bottle cap. What is the big stone used for? Is there a big stone tied to the piano wire?" Gu Chen deliberately hinted wildly in front of Lu Weiwei.
Lu Weiwei finally lived up to expectations. With Gu Chen's various hints, she seemed to have found some new clues, so she snapped her fingers and said, "I know."
"What do you know?" Officer Wang looked at her curiously.
Lu Weiwei stood up immediately and said loudly: "I just mentioned the problem of the pressure of the glass bottle, and the piano wire tied to the glass bottle cap. I think it is used to tie stones, and its function must be to prevent the glass bottle from being
Things are spilling out.”
"Awesome, Senior Sister Lu!" Gu Chen pretended to look at her in surprise, and then thought back thoughtfully: "In this way, the contents in the bottle will definitely explode due to excessive pressure, but what exactly is it?
what?"
Gu Chen quickly looked at the bookshelf again.
Lu Weiwei also followed the hint in Gu Chen's eyes and said casually without realizing it: "Could it be? It's water?"
"Maybe... could it be a solid object of water?" Gu Chen continued to hint wildly.
Lu Weiwei's mind was a little confused, but she still thought hard and replied weakly: "It can't be ice, right?"
Gu Chen frowned and continued to wonder: "But ice and alcohol don't seem to be so powerful, right? Could it be..."
"Dry...dry ice?"
Lu Weiwei said casually, and Gu Chen seemed to have received a major reminder immediately, and suddenly said: "Yes, it is dry ice. When dry ice and alcohol are mixed together, the temperature can be reduced to -80 degrees Celsius, right?"
"When the water in the glass bottle freezes, the volume will definitely expand. At that time, if the bottle cap is fixed and sealed with piano wire and stones, wouldn't it explode?"
Looking at the confused Lu Weiwei, who seemed to have not yet reacted to Gu Chen's words, Gu Chen immediately said: "Senior Sister Lu, you are so talented!"
"Yes... yes?" Lu Weiwei was also stunned for a moment, but she immediately laughed again: "Haha, I wanted to live in harmony with everyone as a paddler, but instead I got doubts and rumors."
"Okay, I won't pretend anymore, I'll show off my cards. Yes, sometimes I'm shocked by my own talent. I'm just so honest."
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