The moment he saw the knife, Photographer Wang cast an incredulous look at President Hu: "Old Hu, this is yours..."

President Hu's face turned as dark as the bottom of a pot, and he neither said "yes" nor "no".

Zuo Xin asked in surprise, "Is it the president's?"

"He bought a high-end imitation military knife. He said it was made exactly the same and he showed it off to us." Photographer Wang was no longer indifferent and impatient as before. He looked at his friend with a complicated look, "I won't be wrong. It's yours."

President Hu's face turned red, "It's not me! She and I have no grudges against each other. Why would I kill her? Am I crazy? It's not me!"

He waved his hands vigorously, his limbs kept shaking, and the veins in his temples were throbbing, "Someone must have taken my knife and deliberately framed me. Many people know that I have this. How could I use such an obvious thing to kill people?"

Deng Daoju asked, "You mean, it wasn't you who put it there?"

"Of course not!" President Hu retorted.

"Whether it's him or not, he must be the murderer." Zuo Xin said firmly, "This is the murder weapon, and there must be fingerprints on it. We'll know who it is if we check it out."

President Hu insisted on his defense: "I wanted to kill someone and used my own knife to kill her? Moreover, I didn't take a knife when I went downstairs, unless I had wanted to kill her for a long time. What was my motive? Do you think there is something wrong between Tang Yuran and me? I was hoping to make this drama well. Who would I ask to shoot it if I killed the heroine?"

He was right, but this alone could not prove that he was the murderer.

"The weapon will be kept by me first." Jian Jing wrapped the weapon in a plastic bag and held it in her hand. "Look for anything else you think is missing. Luo Jun, please take me to the place where the butterfly was found."

Luo Jun nodded, "No problem."

The two of them went downstairs with umbrellas and walked into the small garden in the misty rain.

Jian Jing let him go in front and asked, "Do you think he is the president?"

"It's hard to say. He has a point. It's really stupid to use your own things as weapons." Luo Jun used his mobile phone to illuminate the way ahead. "But if it's not a premeditated murder and it's impulsive, it's normal to use your own things, right?" Jian

Jing said "um" softly and echoed, "He has plenty of time. I am more suspicious of him."

Luo Jun smiled and walked forward with one foot deep and one foot shallow.

Soon, the two came to the small garden. The dense tree trunks blocked most of the view. The soil was soaked by rain and the shoes were full of mud.

"It's probably here." Luo Jun pointed to a place casually. "When Deng and I came here before, we didn't find any footprints or anything like that. They must have come here before the rain. Wang is not a big suspect."

Jian Jing asked, "Why?"

"It was unnecessary for him to ask Hu to come down." Luo Jun analyzed, "And I watched the video. Later, he changed several places, and the time was very fragmented."

Jian Jing nodded again: "Hu is the most suspicious. I will tell the police-what's wrong with your foot?"

Luo Jun walked in a strange way, limping.

"It's okay. I didn't see the road clearly when I came down, so I sprained my ankle." He said quickly, "It shouldn't be serious. Just go back and apply cold compress."

Jian Jing took out her mobile phone and looked around: "There is a small path ahead. We should be able to go back. Let's go from here. You too, if you had told me that you sprained your ankle earlier, I would have asked others to accompany me down."

"It's really okay. I also want to do something for Yu Ran." Luo Jun looked sad, "She was still so young."

"Yeah, how could the murderer have the heart to do it." Jian Jing sighed softly.

The light of the flashlight passed through the wet grass and trees and shone on the small path ahead.

The stone slab road is a small path deliberately paved in the garden. It is in the shape of a Y, with the entrance at the bottom and a small path on each side, which can go around to the sides of the teaching building.

They walked to the left, and after going around half of the garden, they arrived at the bicycle shed next to the old teaching building. There were a lot of old and abandoned bicycles parked here, all of which were rusty.

After turning around the bicycle shed, they returned to the bottom of the teaching building, and the entrance on this side happened to be close to the toilet.

Jian Jing took out her mobile phone and took a look. It took 2 minutes to go downstairs to the small garden, and 5 minutes to go around the small garden and back to the teaching building.

But it's raining now, if the boys walk fast, maybe they can save one or two minutes.

She didn't remember how long Luo Jun took to go to the toilet for the first time, but she vaguely remembered that it was a long time, definitely more than 10 minutes, and 15 minutes was not impossible.

"Woo woo--", a shrill siren came from the distance.

At the same time, a call request popped up on her phone. Jian Jing made a gesture to let Luo Jun leave first, and walked to a secluded place to answer the phone: "Hello, Officer Ji?"

Ji Feng went straight to the point: "Where is it?"

"The old teaching building." Jian Jing leaned against the corridor and waved her phone at the approaching police car, "Did you see it?"

Ji Feng said: "I saw it, wait."

Three minutes later, the police finally arrived.

Ji Feng asked two new police officers to ask other members, and asked Jian Jing alone: ​​"What's the situation?"

Jian Jing hesitated a little. " Just tell me

what you know." Ji Feng rubbed his brows and held back his tiredness. "If we are heading in the right direction, we will be able to solve the case soon. If we are heading in the wrong direction, not only will it waste police resources, but it will also be easy to lose evidence." Jian Jing then said, "I'm just stating my opinion, don't laugh." Ji Feng: "Absolutely not." "Okay." Jian Jing hesitated for a moment and said uncertainly, "I may have found the murderer." Ji Feng choked: "Cough cough cough, what?" "The women's restroom on the fourth floor was not the first scene. A knife was found under the trash can in the men's restroom on the third floor. It belonged to President Hu, but it was not necessarily the murder weapon. There was blood in the women's restroom on the second floor, and we are not sure if it was Tang Yuran's. In the garden behind the teaching building, Tang's earring fragments were found." Jian Jing didn't waste any words and directly stated the evidence. When Ji Feng heard this, his opinion changed immediately: "You discovered all of this? Go on." "I have compiled everyone's timeline and sent it to you." Jian Jing copied and pasted the memo and sent it to Ji Feng in the form of a text message, "Now let me tell you my speculation, just listen to it." She pondered for a while and analyzed: "First, Tang Yuran and Deng You planned to set up a bloody scene in the women's restroom on the fourth floor without telling anyone, in order to create a special event and add gimmicks to the short film we shot. The bloodstains at the scene can support my point of view. Several of the bloody handprints belong to Tang Yuran himself.

"She left at 10:15 p.m. to set up the scene, then went downstairs and chatted with Wang Hao for a while. Deng knew that she went to the small garden. I think this time is credible, because if Wang lies, there is no guarantee that others will not expose her.

"So around 10:30 p.m., Tang Yuran was still alive. When I examined the body, her hair and clothes were not wet. It rained at 11:02 p.m., and she died during this time period."

Ji Feng listened very attentively, took out a cigarette and lit it, took two deep puffs, and became energetic.

"Go on." He urged.

Jian Jing said: "Wang has been shooting materials, and his time is very fragmented. I don't think he has enough time to kill people and complete the disguise. Because the scene had been moved before, and Zuo Xin, a girl, couldn't do it, I ruled her out, and then there were only three people left: Deng, Hu, and Luo.

"Tang Yuran was alive between 10:30 and 11:40 p.m., and Deng left again quite late. We can't be sure of the exact time, but I think it was close to 11 p.m., and he took the initiative to tell me about the fake thing. I don't know if that was the first scene... I recorded this conversation, you can listen to it yourself later, I don't think he is that person.

"The ones I doubt the most are Hu and Luo, but I finally locked on Luo Jun."

Ji Feng asked, "Because the murder weapon was Hu's?"

"One of the reasons is that the murderer faked the scene but left the murder weapon in the downstairs toilet. He can't justify himself. In addition, if it was Hu, he left for too long. But most importantly, I think Luo Jun's timeline is more consistent."

Jian Jing entered the reasoning part: "He and Tang were boyfriend and girlfriend, and it was easier for them to meet than for others. Tang ended the meeting with Wang at 40 minutes and made an appointment with Luo, or it could be the other way around. Luo left at 40 minutes, met her and had a conflict, and killed her. To prevent the body from being discovered by Hu and Wang, he took the path behind the garden and moved the body to the women's toilet on the second floor - because people could come to the fourth floor at any time, and then returned to the classroom.

"Then, he got Hu's knife in the classroom and left at 23:05. He wanted to disguise the women's restroom on the second floor as the first crime scene, but after stabbing the body, he found that the body had very little bleeding and could not meet his requirements. So he suddenly had an idea and thought of Tang Yuran's disguise plan. He used the fake scene on the fourth floor as a disguise and then threw the murder weapon into the men's restroom on the third floor.

"Of course, I don't know if he is aware of this plan, but Tang Yuran's plan could not have been made recently, and they broke up just a few days ago. I have reason to suspect that Luo knew about it."

Ji Feng put out the cigarette butt: "Anything else?"

"There is no garbage bag in a trash can in the women's restroom on the second floor. "Jian Jing pondered, "The cleaner's time is hung behind the door panel, and the garbage bags were changed at 18:00, but one compartment was empty. I guess he tore open the garbage bag to block the blood, so his body was not stained, and this thing is on him now."

Ji Feng clapped his hands and said quite straightforwardly: "Since you already have an idea, let's let him cooperate with the work first."

He was so straightforward that Jian Jing hesitated: "What is said above are all my guesses, what if they are wrong?"

"If it's wrong, it's wrong. Even we have made a lot of mistakes." Ji Feng smiled, "Don't be afraid of making mistakes, I will take care of you if anything happens, let's go. " This was

Jian Jing's first time making a deduction, so she was naturally eager to verify the result. After a slight hesitation, she quickly followed in.

The moment she entered, it was quiet inside. Everyone looked at her at the same time, wondering what she had said to the police.

Ji Feng winked at her, motioning her to speak.

Jian Jing pursed her lips, her eyes swept over the curious Zuo Xin, the nervous President Hu, the frowning Photographer Wang, the confused Prop Deng, and finally fell on the calm male protagonist Luo.

"Luo Jun," she said, "could you please take off your left shoe for a moment? "

This request was inexplicable, but it made Luo Jun's face change instantly.

He was quite handsome, and he had fooled many girls with his smile, but at this moment, he himself probably didn't know how terrifying his expression was.

The shock, tension and instinctive resistance were revealed without reservation.