Liu Xuehan didn't think about it for long before making a decision. She walked to Liang Fanxin's side and bowed deeply to her, as if begging Liang Fanxin.

"Don't worry, this case is over, and I will hide the falsification of your medical examination form!" Liang Fanxin understood what she meant, and said directly to her.

Hearing Liang Fanxin's assurance, Liu Xuehan straightened up. She walked straight in the direction of the gate.

"Team Lu, you stay away and don't scare her. She looked in the direction of the gate. Seeing Liu Xuehan's actions, Liang Fanxin hurriedly shouted to Lu Yifan. After Lu Yifan heard this, he hurriedly took two steps upstairs and stood at the corner of the stairs. But because he was still a little worried about Liang Fanxin, Lu Yifan could only try to keep his body permanent, and then bent down to leak his head out and look at it secretly.

Who knew that when Liu Xuehan heard Liang Fanxin's words, he glanced at her with a strange face, his face was full of puzzlement, and he didn't seem to understand why she did this.

"What, you're not afraid of him?" Liang Fanxin touched his nose and asked embarrassedly.

Liu Xuehan shook his head strangely, as if he didn't understand why Liang Fanxin asked like this.

"Okay, Team Lu, come down, she said I'm not afraid of you, you don't have to hide!" Liang Fanxin shouted to Lu Yifan in embarrassment.

"What's going on?" Lu Yifan walked down the stairs and asked Liang Fanxin with a blank expression. It was she who hid herself just now, and now it's her who brings her back, what the hell is going to do.

"It's okay, she said she wasn't afraid of you, so you don't have to hide, you won't scare her away." Liang Fan said curtly.

"Where's she?" Lu Yifan looked left and right, but didn't find anything unusual, so he asked Liang Fanxin.

"Uh... She's overlapping with you right now..."Liang Fanxin said embarrassedly. When Lu Yifan heard this, he hurriedly took two quick steps, looked left and right, and seemed to feel unsafe, and finally hid directly behind Liang Fanxin.

"Boss, she wants to give us clues, that's why I called you back." Liang Fanxin explained to Lu Yifan, "But you don't have to hide behind me now, otherwise what do you think of the clues?" ”

"Ahem... You let her tell me what clues there are, I'm deciding whether to read it or not! When Lu Yifan heard Liang Fanxin's words, he realized that his reaction was a bit exaggerated, and hurriedly explained. But his already red earlobes had exposed his heart.

"Well, you say, what's the clue?" Seeing Lu Yifan like this, Liang Fanxin said helplessly to Liu Xuehan. I really didn't expect that Lu Yifan, who is usually so venomous, has such a timid scene.

Liu Xuehan saw that the two of them had calmed down, so he walked behind the security door, motioned for Liang Fanxin to follow, and then pointed to the lock behind the security door.

"Something wrong with the door lock?" Liang Fanxin saw Liu Xuehan nodded, so he leaned over and began to study it carefully.

"Boss, she said that this door lock has been moved, can you see if there is anything abnormal?" Liang Fanxin dragged Lu Yifan out and said to him.

"Sure enough, there is a problem!" When Lu Yifan heard this, he said with a look of surprise, "From the moment I found the magnet dregs on the broken lock cylinder, I felt that there was a problem!" ”

"Boss, you've already found a clue? Why didn't you say it earlier? Liang Fanxin said a little angrily.

"I'm not going to see if you can get her to find other clues." Lu Yifan said embarrassedly. As he spoke, Lu Yifan looked left and right, and then took out some tools from the table under the TV, which should be Liu Xuehan's usual use for some simple repairs.

Lu Yifan took out the tools from the inside, and removed the outer layer of protection from the door lock with three lines and five divided by two.

"Sure enough, I didn't have my hands and feet, but what are these things?" Liang Fanxin saw some strange devices inside, and asked Lu Yifan strangely.

"The murderer really has a good IQ, and he actually made this device to cause the effect of killing people in a closed room!" When Lu Yifan saw it, he looked like this.

"Boss, do you understand? What are these? Liang Fanxin asked anxiously. All she could see was strange copper wires that had been wound into groups, and she didn't understand how they could have the effect of killing people in a closed room.

"Don't worry, you'll understand when I tear down the other side!" Lu Yifan sold a lawsuit and said to Liang Fanxin.

As he spoke, Lu Yifan dismantled the other side.

"It's different from the rest of the world! What's going on? Although Liang Fanxin didn't know what these devices were for, he also knew that these things in front of him were definitely not what should be in the lock cylinder.

"The inner lock on the normal security door should be the rotation of the lock cylinder to pull the pin out, and then get stuck on the door! But the lock cylinder here has been broken and replaced with a magnet spring mechanism! Lu Yifan explained to Liang Fanxin, and then pointed out the same thing to her.

"The magnet here temporarily jams the pin, and at the same time the pin compresses the spring, creating a temporary equilibrium state. On the other hand, the coil is an electromagnetically generated device! Once the power is turned on here, the magnetic force formed is huge, and the stuck pin magnet can be sucked over in an instant, and the pin is ejected by the spring at the same time, so that the pin is bounced to the locked state! This is the state in which the case was discovered! Lu Yifan explained to Liang Fanxin, and Liang Fanxin also seemed to understand but did not understand.

In other words, when the murderer walked out of the house, the security door was not locked. As long as he electrified the coil outside the door, it would cause the security door to lock. And then he can rip the wires away? Liang Fanxin asked Lu Yifan.

"Yes, that's what it looks like!" Lu Yifan said affirmatively. "The murderer must know that once someone is found lying in a pool of blood, and the door cannot be opened, the police will inevitably break in, so this device will be directly destroyed! When the time comes, because of the homicide, no one will notice this at all! ”

"So now we have cracked the way of murder in the closed room, but how will it help us catch the murderer?" Liang Fanxin asked.

"Let the technical team test it, maybe there will be some tissues, skin, or fingerprints of the murderer left on these devices." Lu Yifan thought for a while and said.

"Well, okay Team Lu!" Liang Fanxin said, raised his head and glanced at Lu Yifan, Liang Fanxin, who was originally smiling, suddenly changed his face drastically, and took a step back, almost hitting the wall.

Lu Yifan's eyes were quick, and he hurriedly grabbed her hand, then pulled her back and hugged her in his arms.

"What's going on with you, can you not be elusive, it will scare people to death, do you know!" Liang Fanxin said angrily to Lu Yifan.

Lu Yifan looked at Liang Fanxin with a confused expression, not understanding what she was talking about at all.

"I'm sorry, I'm not talking about you, I said Liu Xuehan, she just passed through your body and leaked her head, which scared me!" Liang Fanxin explained to Lu Yifan embarrassedly.

"What!" When Lu Yifan heard Liang Fanxin's words, he felt uncomfortable when he imagined Liu Xuehan passing through his body.

"Can you tell her not to wear random people, it's not fun at all!" Lu Yifan said with a gloomy face.

"Boss, she's got a new clue!" Who knows, Liang Fanxin ignored Lu Yifan's words at all, and said happily to Lu Yifan with a piece of paper.

"What the hell, a blank piece of paper, I can't see anything!" Lu Yifan took it and looked at it, and then threw it to Liang Fanxin, "You read it to me, what she wrote to you." ”

She said that the program of the sweeping robot was made by the murderer! And the robot is connected with Bluetooth, as long as the murderer's mobile phone is found, Bluetooth will definitely be able to connect automatically! Liang Fanxin said happily to Lu Yifan.

"So that's the case, so there's one more piece of direct evidence!" Lu Yifan suddenly realized, "In other words, in this case, the murderer is related to the serial murder case!" ”

"Was that sweeping robot taken back by Guo Jing to check, and it won't be destroyed, right?" Liang Fanxin suddenly remembered and asked Lu Yifan.

"Probably not, they just exported the program for testing, and it shouldn't damage the robot." Lu Yifan thought about it and said to Liang Fanxin.

"That's fine. With these two clues, we have increased the direction of the doctor's investigation! Liang Fanxin said happily.

"Ask her again, are there any other clues?" After Lu Yifan heard Liang Fanxin's words, he said to her again. If you can get a clue, it will be easier to solve the case, and now that Liu Xuehan has told Liang Fanxin all the clues, he will not let Liang Fanxin have nightmares at night.

Liang Fanxin looked at it casually, and then shook his head at Lu Yifan.

"She now has no other clues about the killer. And I don't know why. No soul has ever dared to confront the murderer directly, which is why they dare not show me the murderer's appearance. Liang Fanxin explained to Lu Yifan.

"Since there are no clues, we will go back to the police station now, Chen Lizhi has been detained for a long time, and if we can't get the relevant evidence within 24 hours, we will have to release him." Lu Yifan urged Liang Fanxin, "Now that we have clues, we must quickly find the relevant evidence of his crime and extend the detention time to find the most critical evidence!" ”

"Okay, we'll go back now!" Liang Fanxin nodded and said.

Liang Fanxin turned around and was about to leave, when he suddenly saw Liu Xuehan appear in front of him again, with a pleading face on his face, looking at Liang Fanxin and non-stop. Liang Fanxin looked at her blankly, not understanding what she meant.

Seeing Liang Fanxin's reaction, Liu Xuehan slowly knelt on the ground, and two lines of tears dripped down.

"I see what you mean!" When Liang Fanxin saw it, he hurriedly said to her, "Although your matter does not meet the standards, you can rest assured, as long as this case is successfully solved, it means that I owe you a big favor." I won't take the initiative to mention your matter, as long as the insurance company doesn't investigate it, we won't say it! ”

What Liu Xuehan begged for was the fact that he had made a fake physical examination list. When she learned that her life was short, she could use her last life to obtain the insurance money, which shows that the money is very important to her family, and Liang Fanxin couldn't bear to destroy her plan, so she agreed.