Liu Yi opened his eyes, everything in front of him had not changed, the white roof and the familiar furniture, there was no change, only his own face had changed. He slowly raised his right hand and stroked his forehead full of cold sweat, "What the hell is wrong with me?" ”

Liu Yi looked at everything in front of him, it took a long time to know who he was, he glanced at the watch on the table, it was only six o'clock, Liu Yi slowly walked out of bed, and then entered the bathroom, he felt more and more that the self in front of the mirror was not himself, but a strange stranger, a patient.

"You, how have you changed? Liu Yi!" Liu Yi tapped the mirror in front of him with a toothbrush, and then continued to brush his teeth. At this time, he remembered Chen Xiaoyan's eyes when she talked about Cong Zhijun, and that kind of look didn't seem to be the respect that students had for teachers, but only lovers would have such a look.

At this time, Liu Yi's phone rang, it was Gao Xiaoqing.

"Xiaoqing? Haven't you slept yet?"

"I'm a little uncomfortable when I just come back here, and now I'm ready to sleep, I know that you'll be desperate to investigate the case! I can't go back for half a while, really, and I don't even think about my personal time! The seminar took up Gao Xiaoqing's private time with Liu Yi, and Liu Yi felt that Gao Xiaoqing's eldest lady's temper was about to explode, and she needed to be appeased quickly.

"Xiaoqing, you are an excellent girl, I will always wait for you!" Liu Yi's short words were like a panacea, Gao Xiaoqing was instantly happy, and after the two chatted a few words, Liu Yi's phone kept vibrating.

"Get busy first! Liu Yi, have time to talk! Pay attention to your body! ”

"Xiaoqing......" Liu Yi didn't know how to express something in his heart, and he was hesitant for a long time.

"Alright! My great detective, get busy! I know it in my heart! After Gao Xiaoqing hung up the phone, she found that there was still a message sent to him by Wang Shuang on her phone, which roughly stated that this matter had nothing to do with her, and that she was asking for help and the like. Liu Yi saw that Wang Jianguo sent the location of the school, and the time was half past eight.

Liu Yi believes that Wang Shuang is an insider and may also be one of the victims. Just when Liu Yi came downstairs, he saw a figure standing at the door of the corridor. Liu Yi stepped forward to take a closer look, and this person was Wang Shuang. Liu Yi stepped forward and asked, "Are you following me?" ”

It turned out that after Liu Yi left the restaurant yesterday, Wang Shuang had been following Liu Yi, maybe the two left one after another, there was a certain time difference, Wang Shuang's footsteps were light, and Liu Yi didn't notice it. Liu Yi thought to himself, this woman is very dangerous!

"I just want to beg you to help me, this matter really has nothing to do with me, really, if you want to find someone else! I, I don't want to go to the police! Liu Yi felt that Wang Shuang had been avoiding certain facts.

"You don't have to tell me, it's useless to talk to me, I'm not a policeman!" Liu Yi was dizzy and short-tempered by Wang Shuang, and for a moment Liu Yi wanted to kick it. Wang Shuang pulled Liu Yi's arm and didn't let go, "I beg you to help me, help me!" ”

Liu Yi felt that he had met a madman, a patient. He shook his hand and left quickly, and turned around and threw a sentence to Wang Shuang: "If you are really innocent, then face it head-on, you don't have to be close to me here!" After Liu Yi left, Wang Shuang stood there for a long time, looking at Liu Yi's back with both eyes, his heart was staggered and messy.

Eight thirty.

At the gate of the school, except for Ma Boxing, the rest of the old case team was all together. Liu Yi glanced at Wang Lan, and it seemed that the two had returned to the moment when they had just met. Wang Lan also glanced back at Liu Yi, smiled, and his expression returned to calm.

"Almost late, Brother Ma?" Liu Yi asked.

"I've already wired, Pony is mainly in charge of monitoring and logistics, and the rest is up to us!" Wang Jianguo took advantage of the cigarette before entering the school, and then said, "Wang Shuang looked for you last night?" ”

"Yes, not only last night, but she was blocked at the door just before I came. I feel that she probably knows something, she should have been bullied by Wang Rui, and when she mentioned Wang Rui yesterday, she looked nervous, she should have been stimulated before. And many things were not made public back then, and the school seems to be hiding some things. ”

"It's okay, I've already sent someone to keep an eye on her, and we'll go back to the bureau in the afternoon and we'll interrogate it to see if we can find a breakthrough."

Liu Yi looked around, Mingguang Middle School was close to the suburbs, and there was still a distance from the city center, which was quite off. The students come to school with the children of migrant workers and some students with low scores in the city's entrance exams, but the management of Mingguang Middle School is notoriously strict.

"Master, I've read the information, the previous principal died of a heart attack two years ago." Xu Wei said.

"People can't be resurrected after death, okay, the scene hasn't changed much, let's take a look later!" After Wang Jianguo finished speaking, a man in a suit, flat head, and glasses walked out of the school, "You are the Wang group?" Come on in! "The man who spoke was Li Guangxu, the current principal of Mingguang Middle School.

"Hello!" Wang Jianguo saw that the 46-year-old man in front of him looked very energetic, neatly dressed, with a serious face, and he had the style of a principal.

Li Guangxu led Wang Jianguo and the five people to the principal's office, Wang Jianguo said: "We also want to understand the situation back then, after all, there are many suspicions, the case is strange, and we hope that the murderer can be caught this time." ”

After Lee Kwang Wook took over as principal, he reformed the school system, and now the overall quality of Mingguang Middle School has improved a lot, especially in the quality of teaching.

"Actually, I know a little bit about the previous case, but it is not detailed, most of it is Uncle Wang

Tell me!" Lee Kwang-wook took off his glasses and wiped them.

"Uncle Wang?" Xu Wei asked.

"It's our school cleaner, I've been in school for thirty years, pretty honest!" After Li Guangxu finished speaking, Zhang Jie recorded his name.

"Find this Uncle Wang, let's talk! Then let's go to the scene again. Behind Wang Jianguo, he and Li Guangxu came to the scene of the crime that year, the outdoor toilet.

Wang Jianguo and several people followed Li Guangxu to the principal's office, and not long after, Li Guangxu took an old man over sixty years old. Liu Yi looked up and saw that the old man was full of white hair and wrinkled face, but his eyes were bright, and he looked like an energetic old man.

"Hello, Mr. Wang, we seem to have met before!" Wang Jianguo hadn't figured it out when Li Guangxu mentioned this person, but as soon as he saw someone, he immediately remembered it.

"You are? You're Officer Wang! I remember, I remember your face! The old man was slightly excited. After the two shook hands, everyone sat down, and Lee Kwang Wook left because he still had something to do. Wang Jianguo asked: "Do you still remember Cong Zhijun's case back then?" ”

"I must remember! I'll never forget it in my life! The sonorous old man in front of Liu Yiyan is called Wang Yongnian, who is sixty-one years old this year.

"We are still investigating this case, please recall to us the situation of Teacher Cong at that time!" Wang Jianguo has a lot of respect for Wang Yongnian, and he helped him a lot when he was investigating this case.

"It's been so long and it hasn't been broken! Now it's broken, are you still in a hurry? Wang Yongnian seems to have some doubts about the ability of Wang Jianguo and others to handle cases.

"What do you mean, old man? Look down on us, don't you, you see......" Xu Wei couldn't control his talking box at all, he seemed to have a lead on it, and he touched it.

Wang Jianguo glared at Xu Wei, Xu Wei slowly quieted down again, Wang Jianguo smiled and said: "My apprentice is more reckless, don't worry about Wang Lao!" ”

"It's quite like you back then, so angry! Child! Wang Yongnian's kind tone made Xu Wei feel a little embarrassed.

"Ask! I'll tell you everything I remember! ”

"Mr. Wang, can you tell us about Cong Zhijun?" Liu Yi asked first.

Wang Yongnian nodded, he said that Cong Zhijun was a good person, warm-hearted, and a good person. However, when Wang Yongnian was cleaning up the garbage in the teacher's dormitory, he found a used condom in the garbage bag at the door of Cong Zhijun.

"At that time, it was also a coincidence, the plastic bag was broken, and the garbage was scattered all over the ground. When I saw this thing, I also wondered, how could he have this thing when he lived alone! Liu Yi felt more and more that Cong Zhijun should still have a dark side, an unknown side.

"Are there any girls in the school who are close to Teacher Cong?" Liu Yi then asked.

"Closer girls? We're still stricter here!" Liu Yi saw that Wang Yongnian did not answer his question directly, it seems that there should be a problem here.

"That old Wang, who has a grudge against Cong Zhijun?"

"Kid, Officer Wang has actually asked me these questions before, and you have also made a record." Although Wang Yongnian said this, Liu Yi didn't care about these and still interrogated normally.

"I've seen your transcript, and I just want to hear you say it again!" Liu Yi's tone was firm and he didn't budge at all.

Wang Yongnian also had no choice, nodded and said, "Ask!" Kid!" Wang Yongnian felt that he had hit a hard stubble this time.

"Did Teacher Cong have any holidays with a girl named Wang Rui?"

"Wang Rui? That girl who doesn't study well and causes trouble everywhere? ”

"Yes, if you know the situation, I want you to tell me!" Liu Yi's eyes kept staring at Wang Yongnian.

Wang Yongnian shook his head, Wang Rui is a cancer of the school, and no one in the whole school dares to mess with her. Wang Yongnian said: "The most important thing is that she was not expelled after making repeated mistakes, and I personally feel that there must be someone behind her who knows the principal." ”

Liu nodded, and he probably knew it in his heart, but it was still undecidable for the time being, and he needed more people's true confessions. Just when Liu Yi was thinking, Wang Yongnian suddenly said: "By the way, there is something I didn't say back then, but then I felt quite guilty!" Sure enough, Wang Yongnian had something to hide.

"Say it! Elder Wang! Wang Jianguo frowned.

"Cong Zhijun has a partner named Guo Dongliang. This person is more annoying, not as kind as Cong Zhijun, I always feel that he is behind his back. ”

"Why didn't you say it back then, but only now!" Xu Wei said.

"Wasn't that scared back then!"

"As far as I know, Guo Dongliang also died at home not long after Cong Zhijun's death, and the scene was just as strange, and with the conditions at the time, there were no favorable clues at all." Wang Jianguo shook his head. After Liu Yi heard it, he felt that the two cases should be related, and the murderer was likely to be a person.

"Does Elder Wang know a man named Zhang Yang?" Zhang Jie asked.

"Know, you must know, this person is a ruffian, and he often comes to our school to cause trouble. I was so old at the time, or I had to let him know that it was awesome! Wang Yongnian clenched his fists when he said this.

"Okay, Elder Wang, excuse me!" Wang Jianguo got up and said with a smile.

Wang Yongnian nodded, and at this time Li Guangxu also came back, "Are you done asking?" ”

"It's the past, let's go to the scene and have a look!" After Wang Jianguo finished speaking, he rushed to the outdoor toilet of Mingguang Middle School with Liu Yi and others.

"Basically, nothing has changed, except that I painted it all over last year." Li Guangxu gestured with his right hand and circled his forehead, and then said: "At that time, I found that Teacher Cong's location was in the women's toilet." "If it weren't for class time, no one would be able to go in. But as soon as he entered, Wang Jianguo found that two girls were smoking inside.

"I smelled a puff of smoke just now, and I'll see how you explain it later? Wang Group, you look first, I'll send them to the Academic Affairs Office first. After Li Guangxu finished speaking, he took the two girls out, and Liu Yi saw the two girls with their heads down, with a reluctant expression.

"Come on, everyone, use your personal abilities!" After Wang Jianguo finished speaking, everyone walked to the position of the urinal inside. Liu Yi found that normal people could not get into the water at all. Liu Yi glanced around the toilet, except for the three exhaust outlets, there was no other position exposed. Liu estimated that the length and width of the exhaust outlet did not exceed 10 centimeters. Adult men simply cannot enter through this exhaust vent. Liu Yi also found that the toilet structure of Mingguang Middle School was relatively old, and the manure tank was dug directly, and then the walls were built on all sides.

"Strange, where did Mr. Cong come from?" Xu Wei searched for a long time and didn't know what was going on.

Zhang Jie's eyebrows tightened, "Normally, Cong Zhijun can't come in, and the conditions are not met!" ”

"Let's take a look at the men's restroom!" Liu Yi had already walked out of the women's toilet before he could speak. Wang Jianguo and the others hurriedly followed.

Liu Yi walked to the men's toilet opposite the location of the crime. Liu Yi carefully looked at the surrounding structure. Liu Yi said: "It doesn't seem to have passed from the men's toilet, it's really strange!" The structure of the toilet put Liu Yi in a difficult situation.

Liu Yi stood in the position of the pit, he slowly stroked the wall, the smell in the toilet was unpleasant, Liu Yi covered his nose at the beginning, and carefully knocked on every position of the toilet.

"Xiao Liu, we also did this kind of work at that time, but we didn't find anything!" Wang Jianguo remembered that he had inspected the toilet a lot, and later almost dismantled the toilet and checked him again.

Liu Yi didn't give up, he was still knocking and knocking on where he was, Wang Jianguo knew Liu Yi's character, so he had to study it himself.

Liu Yi shook his head and said to himself: "If the murderer brings the body in from here, but he still can't put the body in the manure tank."

Is it authentic? Liu Yi suddenly ran to the back of the school and the toilet separated by a wall. Liu Yi found that this place was already paved with stone bricks, but it was very dilapidated, and it should have been renovated for a long time. Liu Yi estimated the location of the toilet and began to plane the stone bricks bit by bit.

"Liu Yi, what are you doing here?" At this time, Xu Wei and Zhang Jie also ran over.

"Viagra, Brother Jie, help me move bricks!" Liu Yi said, but his hand did not listen. Xu Wei nodded, and after the three of them moved the stone bricks away, Liu began to dig the foot of the wall with the wooden stick next to him.

"Liu Yi, you wait, I'll get you a shovel!" After Xu Wei finished speaking, he quickly ran to the hardware day store across the road, and it didn't take long for Xu Wei to run over with two shovels.

"Liu Yi, do you think the murderer dug it through the tunnel? It's too big! Zhang Jie said.

"Yes! I have a feeling that the murderer must have dug out from the inside!"

"Inside the toilet?" Xu Wei asked.

Liu Yi shook his head and said: "The outdoor toilet is about a meter away from this wall, just enough to accommodate a person, and I feel that normal corpses will not be thrown into the toilet." ”

"But digging tunnels, isn't it a bit unreliable?" Xu Wei still didn't believe in Liu Yi's theory.

At this time, Wang Jianguo also walked over, "Xiao Liu, in fact, I had the same idea as you at that time, I dug it up, but I didn't find anything."

Wang Jianguo, like Liu Yi, tried his best, but found nothing. Wang Jianguo lit another cigarette, took a deep breath, and said with a smile: "I was the same as Xiaowei, I dug for a long time, and finally was blocked by the underground stones. ”

Liu Yi slowly put down the shovel, and some of the ideas he had originally thought of were broken by Wang Jianguo one by one, Liu Yi found that his ability seemed to be declining, "I also have an IQ offline!" Liu Yi touched his brain and said.

"Xiao Liu, this case is so strange, otherwise it wouldn't have been delayed until now. And that's it, how did the corpse get into the manure tank?" Wang Jianguo walked over and patted Liu Yi on the shoulder.

Liu Yi suddenly raised his head and said, "Brother Wang, did you also dig from the outside to the inside?" ”

"Yes! At the time, I suspected that the killer had dug a tunnel from here to transport the body in, and then fled the scene. It was winter, and the fact that the killer was able to place the body in the right place means that the killer had also entered the manure tank. If you enter the manure tank, the murderer will definitely be contaminated with feces. ”

"Liu Yi, are you saying that the murderer also entered the urinal naked?" Zhang Jie asked.

"Yes, it's very likely, we'll go back to school in a while, and we'll be able to dig this location!" Liu Yi said with a shovel a few times at the foot of the wall.

"I'll let the other police officers do these things, let's go to the girls' dormitory building and the teachers' dormitory building." Wang Jianguo looked at his watch, and at one o'clock this afternoon, he was going to interrogate several alumni who stayed in City C. Time was tight, and I had to hurry up to the site observation work.

Liu nodded, and when the four of them returned to school, Wang Lan and Li Guangxu were waiting for them downstairs in the women's dormitory.

"Did you find anything?" Wang Lan asked.

"It's all speculation, let's go up and have a look!" Liu Yi said with a smile.