"And there are still a lot of doubts about the 504 case, Xia Lan said when she called Wang Dapang that she saw a person carrying a knife into 504, at that time Xia Lan and Wang Dapang's call time was about half past nine in the evening, and it was also when I just left the staff dormitory building, at that time, Mr. Xiao Zhang should have just fallen asleep, and the person carrying the knife entered 504 so early, this person will definitely not be a person outside the staff dormitory building, because the surveillance downstairs did not find a suspicious person, so I concluded, The person carrying the knife must have been some neighbor, at least someone from the unit building. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 info" Xu Tian analyzed.

"And it can't be Teacher Jin, because Teacher Jin only entered the dormitory building around eleven o'clock." Team Leader Chen said.

"Yes, but even so, it can't be completely concluded that the person with the knife is the one who cut off Hu Kaizhe's head, and the others can't be completely ruled out, at least there is no evidence that the person who entered 504 with a knife is the one who cut off Hu Kaizhe's head, but at least we should find out who the person with the knife is, and it is likely that that person is an entry point."

"Only Xia Lan saw that person, and now that Xia Lan is dead, it can be said that there is no proof of death."

"We can also use the elimination method to lock the person who entered 504 with a knife, when Xia Lan called Wang Dapang, Xiang Rong had not returned, so Xiang Rong was excluded. Teacher Jin has been ruled out, and the rest are Professor Zhang and Li Rinrin, it's time to arrest Professor Zhang on charges of illegal experiments, try to interrogate the 504 case to see if you can find a breakthrough. ”

"Professor Zhang's illegal experiments? Do you have proof? ”

"I don't have it, but Mr. Jin must have." Xu Tian said with a calm smile.

"Teacher Jin again? I'm confused by you, what the hell is going on? ”

"You call Mr. Jin and say that you can close the net, I believe that Mr. Jin will definitely come to the police station."

Team Leader Chen was suspicious, and about an hour later, Professor Zhang was arrested and brought to justice, and Teacher Jin also came to the police station consciously.

Xu Tian and Teacher Jin looked at each other and smiled when they met, and Team Leader Chen was completely confused on the side.

"What the hell is going on with you? Can you make that clearer? Team Leader Chen said anxiously.

"Teacher Jin said! Now Mr. Jin has more right to speak. Xu Tian said.

"Humph!" Teacher Jin showed his signature sarcastic smile. "I have been secretly observing Professor Zhang for a long time, and the eight teenagers in his family are all experiments, in fact, he has not studied any great inventions, he is just developing counterfeit drugs, but it is also a big case against the law and morality."

"Fake medicine? May I ask you about your identity? Team Leader Chen asked.

"I'm just a middle school teacher, so I don't have anything else to say." As he spoke, Mr. Jin took out a small notebook and handed it to Team Leader Chen.

Team Leader Chen took a look at it and was so shocked that his eyes were about to fall out.

"So you're ...... No, you are ......"

"I can correct Professor Zhang for you, but there is no need to say anything else, a senior police officer like you should understand, right?"

"Understood!" Team Leader Chen breathed hard and deeply, trying to make his breathing as even as possible. "Can you give us some clues about the 504 case?"

"I don't have any substantive evidence, but according to my speculation, it should be Professor Zhang who killed Hu Kaizhe. According to my investigation, the counterfeit drugs they sell are injectable vaccines, and there are many types of vaccines, which will bring great harm to society if they enter the market. And those teenagers are the subjects of their experiments, but they are the subjects of the experiments, in fact, the experiments done by Professor Zhang are just to make the fake drugs he developed will not kill people, such cruel experiments themselves have violated the law, no, it should be said that it violates humanity, those teenagers can die at any time, and they have been injected with fake vaccines for many years, and their physical functions have been seriously declining. ”

"Damn!" Team Leader Chen stretched out his fist and slammed the table and roared. "Have you found evidence that Professor Zhang developed a counterfeit drug?"

"I'm ashamed to say that the person who found the evidence was Hu Kaizhe, from the time I started to stare at Professor Zhang, I found that Hu Kaizhe was also staring at Professor Zhang, on the night of Hu Kaizhe's death, I had met with Hu Kaizhe, I showed my identity in front of Hu Kaizhe, and then Hu Kaizhe copied all the evidence that could sanction Professor Zhang to me, but Hu Kaizhe was killed that night, so I only delayed a few days, and only now did I expose Professor Zhang."

"I see, you want to find evidence that Professor Zhang killed Hu Kaizhe, right?"

"That's right, but I haven't found evidence that Professor Zhang killed Hu Kaizhe yet, since you called me and said that you could close the net, I thought you had found evidence."

"It's a pity that Xu Tian asked me to call you."

"Huh?" Teacher Jin looked at Xu Tian on the side, revealing a disdainful gaze.

"Teacher Jin." Xu Tian said politely. "You just need to tell me everything you saw and heard on the night of Hu Kaizhe's murder."

"I came out of the house at 10:45 that day, went downstairs and answered a phone call, about five minutes later I arrived at the dormitory building opposite, I went to the third floor when I heard a movement upstairs, I quickly went upstairs, but I didn't see anyone until I went to the top floor, I felt that something was wrong, so I went downstairs again to investigate, when I went down to the fifth floor, I saw the door of 504 open a gap, I am sure that I just walked down the fifth floor and saw the door of 504 opened. At that time, it was time for the power outage, and the lights in the corridor went out instantly, and at this time, there was a sound of someone falling in 501, so I looked back. ”

"Wait...... Are you saying that you were the one who came down from the upper floors after the power went out? The sound of 501 was the sound of Si-yeon falling down when she encountered a sudden power outage while exercising. ”

"I know, because the dormitory building is old, I heard the two sisters talking at home, and the girl who fell down complained a few words."

However, Li Rinlin said that she was the one who went downstairs at that time, and Li Rinlin also heard Siyan's fall.

"I'm sure it was me who came downstairs at the time, as for why Li Rin knew that 501 was making a noise, you should have already deduced it, right?"

"At that time, Li Rin was in 504!" Xu Tian said in surprise.

"I don't know who the person in 504 was at that time, but when I heard you say this, it should be Li Rinrin, but after I entered the door, I saw a person leaning on the windowsill, there were no curtains in room 504, and there was a faint moonlight, I can be sure that the person was Hu Kaizhe, and there was a woman's snoring on the bed near the door at that time, and most importantly, I felt that there was someone behind the door at that time."