Ah Wei's body was taken to the Technical Section.

In the final analysis, it is to detect the time of death, and in this regard, Forensic Liu is more professional.

And Gu Chen, Officer Wang and Lu Weiwei are now going to the community monitoring room to retrieve Wang Zhe's relevant videos.

At this moment, the monitoring room was also in chaos, and the few policemen who came in a hurry still shocked several security guards.

A safe and high-end community suddenly had a homicide, which is also a huge challenge for property management.

The most direct manifestation of this is that the collection of monthly strata fees can be challenging......

Charging high property management fees, but not ensuring the safety of residents in the community.

You can't shake off this pot......

"Did you find the surveillance?" Officer Wang stood directly beside a property security guard and began to urge.

Looking at it this way, the security guard doesn't look like a journeyman.

"Oh, I found it, see if it's him. The security guard hurriedly gave up his position and said with a smile: "I'm not very experienced in this thing, I'm sorry everyone." ”

"This is the main unit entrance, right?" Officer Wang didn't really pay attention to this, all he wanted was the answer.

"Yes, whenever you want to go upstairs, this surveillance camera can shoot it. The security guard said.

"Time helped me back to 12:20. Gu Chen said.

"No problem. The security guard agreed very happily, directly operated the mouse, and returned the time to 12:20.

Sure enough, Wang Zhe at this time appeared at the exit of the corridor.

After a few glances left and right at the door, he left the community leisurely.

It seems that he did not lie, and did leave after lunch. Lu Weiwei stood aside and said.

"You can't jump to conclusions now and push back the clock. "Officer Wang doesn't believe it's that simple.

Subsequently, time began to speed up at a speed of 2.5 times, and several people walked out of the unit building.

Security confirmed that all of them were residents of the building.

It wasn't until nearly 2 o'clock in the afternoon that Ah Wei's neighbor, who was the informant Zhao Mei, walked into the unit with his bag.

Officer Wang couldn't help frowning after checking the time of the case and the time in the surveillance video.

Since Wang Zhe left, only Zhao Mei has walked into the unit building, and then she is also the person who called the police. After Lu Weiwei saw the whole process, she couldn't help but wonder.

"There's still a problem, could it be that someone else in this building has done something wrong?" Officer Wang said helplessly, and then looked at Gu Chen: "Gu Chen, you can talk about it." ”

"It's unlikely. Gu Chen also made his own judgment.

"Yes, the deceased Ah Wei himself was a character who didn't like to socialize, and in this building, he had a good relationship with his neighbor Zhao Mei, but ......"

"But if it's Zhao Mei, the hands-on time is too short. Officer Wang took Lu Weiwei's words and said.

"I also agree with Senior Sister Lu's opinion. Gu Chen hesitated for a few seconds and explained: "If it is calculated according to the time when she received the report before, then Zhao Mei can only ensure the consistency of her report time if she just gets on the elevator and then goes directly to Ah Wei's house, not to mention stabbing Ah Wei with a knife and causing her death, this can ensure the consistency of her report time, otherwise it is too hasty." ”

Lu Weiwei looked at Gu Chen with big eyes.

That's right, what Gu Chen just said was what he thought in his heart.

If it is assumed that the murderer is Zhao Mei, then the time for her action is too hasty, which means that she will start acting as soon as she enters the door, which is basically unlikely.

"Could it be Wang Zhe? But he left Ah Wei's house at about 12:18, and Ah Wei did not die at that time. ”

Officer Wang suddenly looked at Gu Chen, every time he encountered a worrying problem now, he would look at Gu Chen.

knew that Gu Chen's inference ability and analysis ability were far above him.

However, Officer Wang can't say whether Gu Chen can help now, or that Gu Chen also has times when he encounters difficulties.

"Gu Chen, do you have any questions? If you can tell me, maybe we can discuss it together. ”

has been partnered with Gu Chen for a long time, and some of Gu Chen's small habits, Officer Wang also sees them.

Frowning his brows indicated that he was thinking, especially after saying his opinion, he suddenly quieted down, which showed that Gu Chen still had some aspects that he could not argue.

"Senior Brother Wang. Gu Chen hesitated for a moment and said, "Although this Wang Zhe staggered the time of killing, I still feel that there is something wrong with him, if I can, I want to go to the scene again to see." ”

"Of course you can, I'll let Lu Weiwei accompany you, and you can report to me at any time if there is any situation. Officer Wang looked at the surveillance screen and said, "I'll stay here and continue to check other people around the community." ”

"Okay!" Gu Chen readily agreed.

When I came to Ah Wei's house, there was still a cordon at the door, and two auxiliary police officers were talking about possibility.

And Zhao Mei is door closed, she should be hiding at home.

When encountering this kind of thing that happens around you, you will inevitably be a little frightened.

"Gu Chen, Lu Weiwei, do you have any progress in your investigation?" asked one of the auxiliary policemen.

"Not yet, but I guess it's going to be soon. Lu Weiwei said, propping up the cordon and burrowing into the room.

Gu Chen didn't speak, and walked in after him.

To say that along the way, Gu Chen has been thinking about a question.

That is, what's going on with this cigar?

According to the cigars on the counter at home, and chatting with the dealer salesman, you can know that the burning time of this cigar is generally about 1 hour and 25 minutes.

In other words, when everyone arrived at the scene, that is, around 2:25, the cigar burned for a full hour.

Then the time of the crime must be between 1:25 and 2:25.

But who has been here during this time?

Gu Chen didn't know, but he was more suspicious of Wang Zhe.

"Senior Brother Gu, what are you thinking?" Lu Weiwei couldn't help but ask when she saw Gu Chen, who was absent-minded.

Gu Chen shook his head and rubbed his temples with his hands: "I just have a headache." ”

"Then I'll check again, you rest first. Lu Weiwei once again walked to the place where Ah Wei was killed before, as well as his room, kitchen, etc., and Lu Weiwei would not miss every detail.

Gu Chen sat on the sofa, pretending to rub his temples, gradually closed his eyes, and used his entry-level imagination to open the virtual space in his mind again.

This time, the space simulated by Gu Chen was last night's Japanese restaurant.

Officer Wang and Lu Weiwei were chatting with each other, Gu Chen snapped his fingers, and soon separated from his body in the virtual space and walked to the dining table behind him.

At this moment.

Ah Wei and Wang Zhe, the two were sitting there eating, and the atmosphere was a little tense.

"Master, this is your last chance, please give me some grace. Wang Zhe's tone was slightly pleading, as if he was asking for a long-haired man.

Unlike facing Wang Zhe that night, Gu Chen was able to restore the demeanor of the two of them at close range this time.

Wang Zhe's face was full of pleading, as if he had encountered something very tricky and needed to be solved urgently.

At this time, Gu Chen looked at Ah Wei on the other side again.

Ah Wei stroked his long gray hair, and glared at Wang Zhe with angry eyes.

"Ah Zhe, it's not that you don't want to help you as a master. Ah Wei's tone was very angry, and he sighed heavily: "But you see what you are doing, you want me to help you, okay, you give me a result." ”

At this time, Gu Chen had already carefully figured out the demeanors of the two of them.

That's right, Ah Wei's attitude towards Wang Zhe was quite an atmosphere, and it seemed that Wang Zhe had done something wrong that caused Ah Wei to scold him harshly.

At this time, he was looking at Wang Zhe, still looking at Ah Wei with weak eyes, and pleaded: "Master, I don't dare anymore, please believe me, I am also forced to be helpless." ”

Gu Chen turned his head to look at Ah Wei, and Ah Wei's expression didn't seem to change much.

just said lightly: "Okay, I don't think I can eat this meal today, I will give you another day, and after a day, how will it be." ”

Like last night's scene, Ah Wei picked up his bag and walked away directly, leaving Wang Zhe sitting there alone.

"There seems to be a deep contradiction between the two, but why did Wang Zhe say that he had already solved all the problems with Ah Wei at lunch today?"

Gu Chen stood beside Wang Zhe and looked at him with his hands clenched into fists, looking unwilling.

Then, Wang Zhe's eyes began to be filled with an evil murderous aura.

He picked up the chopsticks on the table and began to enjoy the fact that he was alone.

Gu Chen simply chose to sit opposite Wang Zhe.

At this time, Wang Zhe, every time he took a bite, the hideousness in his eyes deepened.

"I feel like this guy doesn't want to come to eat, but he is here to find guilt, in this case, the food in front of him is also tasteless, right?"

Gu Chen kept staring at the changes in Wang Zhe's face......

It's obvious.

Wang Zhe's hatred for Ah Wei at this moment has almost reached the zero point.

After eating the last meal, Wang Zhe buckled his chopsticks heavily and began to walk towards the cash register.

The subsequent scene is what your own doppelganger sees in the virtual space.

Band-aids, bruises, Wang Zhe's face had an unusual aura.

"It seems that Wang Zhe has murderous intentions towards Ah Wei, but how did he manage to hide from the world?" Gu Chen couldn't help but hold his chin and snap his fingers.

Soon, the virtual space came to Ah Wei's house again, and it was noon at the moment.

Indeed, Ah Wei entertained Wang Zhe at home, and the two sat at the dining table and continued to discuss yesterday's topic.

But what is it exactly? Is it the shooting problem that Wang Zhe said in his mouth? Gu Chen thinks it is not.

Subsequently, Gu Chen could only simulate the picture of the two arguing at the dinner table, and Ah Wei even slapped the table at one point.

At this moment, Wang Zhe's emotions exploded to the extreme.

Taking advantage of Ah Wei's lack of attention, he walked to the kitchen, picked up a fruit knife, and stabbed Ah Wei directly into the heart.

Ah Wei died violently in an instant, and he didn't have time to react at all.

Seeing that he had killed his master, Wang Zhe suddenly panicked, he wiped the fingerprints on the knife and began to desperately remove the traces.

After everything was done, Wang Zhe calmed down, looked down at the time, and then swaggered again...... Walk out of the room as if nothing happened.

The scene was simulated here, Gu Chen suddenly snapped his fingers, and the sky swirled for a while, Gu Chen slowly opened his eyes and looked at the burned cigar on the table.

"That's right, the burning time of the cigar may be a trick, if you use the burning time of the cigar, maybe at 1:25, Ah Wei is still smoking, which means that he is still alive, but if there is no cigar, then Wang Zhe's crime time can be basically determined. ”

Gu Chen's sudden self-talk made Lu Weiwei on the side quite curious.

Lu Weiwei was stunned and asked, "Senior Brother Gu, what are you talking about?"

"Senior Sister Lu, is there anything suspicious near the cigar?" Gu Chen suddenly stood up and looked at the ashtray on the table.

"No, I don't. Lu Weiwei said this, and suddenly said: "By the way, I also found an astronomical telescope, it seems that this Ah Wei is still an astronomy enthusiast." ”

"Astronomical telescope?" Gu Chen frowned, and his gaze fell directly on the desktop.

On the table next to the window, a black astronomical telescope is set up on the windowsill of the living room.

Gu Chen hurriedly stepped forward, looked at the ashtray on the table, and the extinguished cigar, and couldn't help but say happily: "I know, I know how this Wang Zhe used the cigar to make an alibi, this guy is really cunning." ”

"Senior Brother Gu, you said you already knew?" Lu Weiwei was also quite surprised, and asked, "Then you mean, the murderer is Wang Zhe?"

"It's 100 percent him. Gu Chen was no longer subtle, and directly pointed to the astronomical telescope and said: "This guy just used the characteristics of the astronomical telescope to create the illusion that Ah Wei was still smoking at 1:25, but in fact, Ah Wei had been killed by Wang Zhe as early as noon." ”

Lu Weiwei was a little unconscious when she heard this, and asked weakly, "Senior Brother Gu, can you be more specific, what is the situation?"

Gu Chen put on his white gloves, pointed to the astronomical telescope and said, "Senior Sister Lu, do you know the characteristics of the astronomical telescope?"

"This ...... Of course, knowing some, astronomical telescopes can see far away, such as distant starry skies. Lu Weiwei said.

"So, what is its principle?" Gu Chen asked again.

Lu Weiwei suddenly felt a sense of déjà vu that primary school students were named by the teacher, and said stunned: "Because...... Because of those lenses?"

"That's right. Gu Chen walked to the other side, pointed to the lens of the astronomical telescope and said, "This astronomical telescope made of convex lenses is Wang Zhe's tool to falsify the time of Ah Wei's death. ”

Lu Weiwei froze, looked down at the astronomical telescope, and said in a daze, "This thing can fake the time of death?"

Although she has changed her thinking, Lu Weiwei has not reacted for a while.

"Senior Sister Lu, the reason why we can see far away with the astronomical telescope is mainly due to the credit of the lenses, the two lenses of the astronomical telescope are convex lenses, thin on both sides and thick in the middle, so that they can play the role of magnifying things, and at the same time can play the role of concentrating light. ”

"That's right. Listening to Gu Chenyi's words, Lu Weiwei seemed to be a little enlightened, and said: "When I was a child, I often played this kind of game, holding a convex lens to enlarge the font. ”

"I've played it too. Gu Chen smiled and continued: "The reason why the convex lens can concentrate light is mainly because the light will be refracted and caused. ”

"And when the spotlight is concentrated on a certain combustible material for a long time, it may cause combustion?" Lu Weiwei finally kept up with Gu Chen's rhythm, feeling that this was the success of the teacher's class.

"Senior Sister Lu, do you think it's interesting now?" Gu Chen asked.

"I already know what you're trying to say. ”

Lu Weiwei tore off a piece of paper from the notebook and adjusted the angle of the astronomical telescope so that the light could be focused on a point.

After a long time, the corners of the paper began to burn, but not very powerfully.

"Put it down, Senior Sister Lu. Gu Chen smiled, took the astronomical telescope from Lu Weiwei's hand, and said, "The sunlight is not strong now, and the angle is not easy to grasp, so you may not be able to achieve the best effect if you adjust the angle specially." ”

"So the best effect is noon, where the sun is at its strongest, and if you focus on the cigar, you can light the cigar. ”

"And it takes time in between, and it can't be done at one time, so this Wang Zhe must be familiar with the time when the sun changes. ”

"Senior Sister Lu is right. Gu Chen opened the ashtray, and below, sure enough, there was a scorched wooden board.

"Senior Sister Lu, Wang Zhe has actually discovered a long time ago that if he puts the astronomical telescope in the window, when the afternoon sun shines, he can use the fixed angle of the astronomical telescope on the windowsill to gather the focus in one place, so as to have the effect of lighting a cigar. ”

"Haha, that's true. After reading it, Lu Weiwei was also quite pleased, and said: "It seems that Wang Zhe has already planned to kill his master, so he will create some traps to confuse our normal judgment." ”

Gu Chen also smiled: "If it weren't for last night, I found out that this Wang Zhe and Ah Wei had a quarrel, maybe I wouldn't suspect him, but this guy is very scheming, no matter how he hides it, there will be some mistakes." ”

Looking at the black mark on the wooden board on the desktop, Gu Chen continued: "This black dot is the result of Wang Zhe's experiment, so he also made a fixed mark on the placement of the astronomical telescope. ”

Lu Weiwei followed Gu Chen's train of thought, carefully checked the location of the astronomical telescope just now, and sure enough, she found a few small nicks.

Placing the telescope in the notched position was indeed aimed at the burnt focus under the ashtray.

"Senior Brother Gu, your judgment is completely correct, it seems that this Wang Zhe can't be washed away. ”

"That's right. Gu Chen also looked up at the window and said, "However, if you have enough evidence, you have to wait until tomorrow after the experiment to get the results." ”

"If we set up the astronomical telescope according to the position of the small nicks, and wait until about 1:25 p.m., when the spotlight can be concentrated on the charred position on this wooden table, then we can conclude that the time of death of the deceased Ah Wei may not be after 1:25, and if we add the judgment of Forensic Doctor Liu, it is estimated that it is also eight or nine. ”

"Yes, Forensic Doctor Liu may have a certain error in determining the time of death, but if this kind of experiment is used to conclude that the cigar can be lit at about 1:25, then it is useless for Wang Zhe to use more lies. ”

Thinking of this, Lu Weiwei suddenly felt that Wang Zhe's previous performances were really full of loopholes.

Maybe he's really not suitable to be a director, right?

......