"Hello, I have a few questions for you, can you answer them?" Zhou Zheng walked up to the female teacher, looked kind, and asked softly, if it weren't for the ICPO exclusive badge on his chest, no one would have seen that he was an Interpol.

"Yes." The female teacher's emotions seemed to calm down, but her voice was a little hoarse, "Please, comrade policeman, you must find the murderer who killed Ah Liang!" ”

"No problem!" Zhou Zheng nodded, and then asked, "Your name?" Relationship with the deceased ......"

"My name is Lin Jingran. It's Ah Liang's wife. ”

I see. Zheng Hanfei nodded secretly, since she had figured out the relationship between her and the deceased, the direction of judging the motive for the murder was clearer, so he asked, "Did you have a dispute with the deceased before your death?" ”

"He is ......" Lin Jingran glanced at Zhou Zheng, her eyes were full of puzzlement, as if she was asking how Zheng Hanfei could appear in this place.

"Please answer his question!" Zhou Zheng said, "What he said is also what I want to ask." ”

"You're doubting me!" Lin Jingran's face was full of anger, "Although I often quarrel with him, the relationship is very harmonious, I have no reason to kill him!" ”

"Don't get excited, don't get excited! We're just following the convention. Zhou Zheng smiled and motioned for Lin Jingran to calm down.

"Humph!" Lin Jingran turned her head angrily and stopped looking at Zhou Zheng and them.

"Let's go." Zhou Zheng whispered in their ears.

Zheng Hanfei nodded, he knew that even if she asked Lin Jingran now, she couldn't say anything. Fortunately, he still has an important clue: that is, Lin Jingran has a motive to kill.

"What's wrong?" Before leaving, Zheng Hanfei found Gu Jie's pensive look and couldn't help asking.

"She seems to be lying......"

"What?!"

"When she was angry, I saw a flash of panic in her eyes, and...... Her grief was a little too much. Gu Jie frowned, he was sure that the other party must have another purpose in doing this.

"Alright, don't think about it yet! Let's ask when she's in a better mood. Zheng Hanfei patted Gu Jie on the shoulder, then pulled him and followed Zhou Zheng to ask the next suspect.

Before leaving, Zheng Hanfei glanced back at the other party, with a glimmer of light in his eyes, and he didn't know what he was thinking......

"Hello, there are some things I want to ask you, is it convenient for you?" Zhou Zheng looked at the muscular man in front of him and asked.

"You're a cop?"

"So to speak."

"Then you should ask quickly!"

"You seem to be impatient!" Zheng Hanfei suddenly said that he always felt that there was something wrong with Li He's performance.

"Of course!" Li He said loudly, "My friend is dead, can I be in a good mood!" ”

"But your temper ......"

"My temper is natural! It seems that you are a new student, you can ask the students next to you, they all know that I have such a temper, whether it is happy or bad! ”

Zheng Hanfei looked at everyone, only to see everyone nodding in unison, which suddenly made Zheng Hanfei feel a little helpless.

"Are you good friends with the deceased?" In order not to let Zheng Hanfei continue to be embarrassed, Zhou Zheng had to change the topic and ask Li He.

"Yes, I've been friends since I was in junior high school, and I've been a teacher here when I grew up, he's a good person!"

"I've heard some people say that you have been at odds with the deceased recently, is it true?"

"Yes! Because of some small things, the relationship has not been good lately. Li He said, "However, Mr. Policeman, I am not a murderer, if you want to doubt it, you should still suspect that English teacher Lin Jingran." ”

"What do you mean by that?" Zheng Hanfei hurriedly asked. He felt that what Li He said next was very likely to find some breakthroughs for the case.

"When I was drinking with Wang Liang before, I heard him say that he was going to divorce Lin Jingran, and it seemed that he couldn't stand her temper. But he couldn't decide when to tell her, so he was very worried. Because of the bad relationship lately, I don't know if he told her or not. ”

Really! The corners of Zheng Hanfei's mouth lifted a slight arc, with this testimony, then Lin Jingran's motive for killing is clear at a glance, of course, he can't conclude that Lin Jingran is the murderer, after all, the mystery of the secret room has not been solved, and Li He's words may have lied in order to get rid of suspicion.

"Xiao Hanfei, you seem to understand something." Zhou Zheng said to him with a smile, "That confident expression is exactly what the detective has after mastering important clues." ”

"Yes, but you and Ouyang Xiu also understand." Zheng Hanfei nodded, but he felt very helpless in his heart, the first time he met him, he called himself Xiao Hanfei, is he familiar? And there is also the word "small" in front, it seems that he still has a youthful heart at this age.

"That's right." Ouyang Xiu said affirmatively, and then asked, "Teacher Li He, I want to ask you, what are you doing from 11:20 to 12:00?" ”

"You mean my alibi!" Li He said, "From 11:20 to 11:50, I was chatting with other teachers in the office on the first floor. As for the rest of the time, you and that little girl can prove it for me. ”

"Yes." Ouyang Xiu nodded, because at that time, it was the time when he, Qu Menghan and Li He went to find the deceased.

"So when you witnessed the deceased enter the chemistry lab, was anyone else watching?" At this time, Zheng Hanfei asked out loud, if it was just him, then his testimony would be a little implausible.

"Yes!" Li He replied, "I entered the office on the first floor with a few teachers, you can go and ask them, they should have seen it." ”

"Ask right away!" Zhou was shouting to a young police officer behind him.

The young officer nodded, turned around and ran to the first floor to ask about the witnesses in Li He's mouth. After he left, the short police officer who had been called by Zhou Zheng to search for something hurriedly ran back and said a few words in Zhou Zheng's ear out of breath.

"Inspector Zhou Zheng, have you found anything?" Zheng Hanfei asked.

"Ah, a bit of a clue. As Xiao Ouyang said, the deceased's interpersonal relationship was very good, according to the results of the police investigation, the deceased only had a bad relationship with three people recently, one was Li He, the other was Lin Jingran, and one person was out of town, so he was excluded by the police. ”

"So, the murderers of the deceased are only one of them, Li He and Lin Jingran?"

"Yes. There is another thing, that is, the two marks on the neck of the deceased match the rope of the hanging corpse, and the rope is the murder weapon, but there are only the fingerprints of the deceased on the rope. ”

"That's right." Ouyang Xiu nodded, "It seems that it's hard to judge who the murderer is now, but before that, one thing must be clarified." ”

"The mystery of the secret room!" A gleam flashed in Zheng Hanfei's eyes, "How did the murderer do it?" The lock in the chemistry lab is a spherical lock, so it is impossible to implement a secret room with a thin wire or something. ”

"In that case, let's go back to the scene and investigate." Nan Ruoxun proposed, "It's not the same thing to wait here, just so let's go and ask Teacher Lin's alibi again." ”

"That's exactly what I mean." Zhou Zheng nodded and led everyone back to the scene of the crime.

……

"Well, did you find anything?" After searching the window for a while, Zheng Hanfei sighed, his face was a little disappointed, it seemed that he didn't find the clue he wanted, so he asked the others.

"Nope." Gu Jie and Zhong Li Wan'er, who were searching around, shook their heads at the same time.

"You really are." Nan Ruoxun said, "The police have searched here, why do we bother to check again, don't you suspect that the police in Huaxia can't do it!" ”

"It's not that I don't believe it! It's just that their help is still unsuccessful in the end. Ouyang Xiu looked around the deceased and said, "What we do is to make up for this 'one omission', you see!" ”

Ouyang Xiu's voice attracted everyone, and as far as the eye could see, Ouyang Xiu was holding a few grains of sand in his hands.

"This is ......," Nan Ruoxun couldn't help asking.

"It must have fallen out of the sole of the murderer's shoe, and the sole of the deceased's shoe didn't have sand." Ouyang felt the touch of the sand for him, "This kind of sand is dry, rough on the surface, and earthy yellow, Wan'er, is there this kind of sand in the academy?" ”

"I want to think about it...... It seems to be only available around here. ”

"Hey! Come and have a look. Zhou Zheng's voice made everyone turn their attention to him again, Zhou Zheng pointed to the ground in front of and behind the door, and picked up something from the ground casually, everyone took a closer look, it was also sand, and it was very similar to what Ouyang Xiu was holding in his hand.

The same sand? Don't...... Suddenly, a flash of inspiration flashed in Zheng Hanfei's mind, and he seemed to have understood the methods of the secret room, but he still had to find some decisive clues and evidence.