There are five floors of girls' dormitories, each floor has twelve dormitories. At that time, because there were too many residents, four upper and lower bunks were placed in each dormitories. Liu Yi pushed open the doors of the two dormitories 306 and 312. The girls' dormitories were clean and tidy.

Liu Yi recalled that when he lived in the dormitory, he was very dirty and could not even get rid of it. In Wang Jianguo's eyes, except for the simple renovation of the interior, nothing else changed. Li Guangxu smiled and said, "The school has sorted out well in recent years. In the past, there were eight students here, but now there are four students."

Wang Jianguo nodded. Liu Yi walked to the window of the dormitory at this time and found that a guardrail had been installed on the outside of the window. Liu Yi asked: "Principal Li, when was the guardrail installed?"

"It was only installed on the third and fourth floors last year, and before, it was only pressed to the second floor." Liu Yi opened the window and looked out.

Zhang Jie pointed to the curtains and said, "Group Wang, students could still use the curtains to climb to the second floor and then follow the guardrail."

"Yes, I also simulated it back then. But it requires strong arm strength. Do you suspect it was done by a female student?"

"If Cong Zhijun did not leave school frequently, there would be basically no enemies outside the society. He spent most of his time in school, and the only people he contacted was teachers and students, so the possibility of the murderer being in school was relatively high." After Liu Yi finished speaking, Wang Jianguo began to recall the scene that year. The police almost turned the entire school upside down. Because it delayed the students' learning progress, he had to stop the investigation.

"We did interrogate the vast majority of students and teachers back then, but the results were not good and no favorable clues were found." Wang Jian was actually guilty of his own heart.

"Brother Wang, the principal was named Hou Yaojie. Did you find anything abnormal when you interrogate him?" Liu Yi said.

Wang Jianguo shook his head and said, "A person who is a normal person speaks rigorously and has not found any suspicion." Liu Yi recalled the transcript he had read before. Literally, Hou Yaojie did not answer anything directly. These words were more like evasion from the police. Hou Yaojie died of illness and now he has no way to confront him.

"Now we will organize the case again to see if this is the case, and then we will start to investigate the suspects one by one." After Liu Yi finished speaking, everyone closed the door of dormitory 312.

"First of all, this student had a personal grudge with Cong Zhijun, but it was not once. It may be that after many times, people would be lost. Second, Cong Zhijun returned to the classroom dormitory alone that night, and then met the murderer. The first scene should be the teacher dormitory. Third, the murderer chose to commit the crime in the early morning. At this time, most of the students were resting and basically did not stay up late to study. And there was relatively plenty of time." Liu Yi walked to the window and looked at Zhang Jie and said.

"There is a lot of time. We run for exercises at 5:30, but it will be cancelled in winter. Breakfast will start at 6:00." Li Guangxu said. Liu Yi has read these information in the old case information, but Li Guangxu's active cooperation with the police still made Liu Yi very pleased.

"It is impossible to use the curtains to go down from here without being discovered. Moreover, it was winter when the windows should have heating measures." Liu Yi turned around and looked at Li Guangxu and said.

"What this little brother said is that the school building in our school is not sealed well. In winter, we will press plastic cloth on the windows." Li Guangxu's answer denied Zhang Jie's conjecture.

"Xiao Liu, how do you think the murderer got out?" Wang Jianguo didn't think of it.

"Brother Wang, the dormitory aunt also died of illness. So whether a female classmate secretly ran out at that time cannot be confirmed. When I got up at night to go to the toilet, I needed to register with the dormitory aunt. According to the information, the girl on the list did not have conflicts with Cong Zhijun during the interrogation, and only Chen Xiaoyan was related to Cong Zhijun. It is also possible that the murderer had not entered the girls' dormitory." Liu Yi said.

"Didn't enter the girls' dormitory? What does this mean?" Xu Wei said.

"Viagra, don't worry! We can guess that the murderer has been hiding in the outdoor toilet..." Before Liu Yi finished speaking, Xu Wei said: "Liu Yi, he would check the bed at that time. Who is not here will definitely know at a glance.

"Viagra, how did you avoid the dormitory check when you were in school? Besides, she may not be in school, but outside the school!" Obviously, Liu Yi's spearhead was pointing at Wang Rui.

"Are you talking about Wang Rui?" Xu Wei said in surprise.

"If what Chen Xiaoyan said is true, on the Christmas party, Wang Ruiyu and Cong Zhijun had another quarrel, which led to Wang Rui being punished by the school and being taken home for education that night. She is likely to return to the school in the early morning to find trouble for Cong Zhijun, but I can't figure out one thing, how did Wang Rui accurately grasp Cong Zhijun's every move?" Zhang Jie was dragged himself into the quagmire of thinking again.

"Wang Rui is from this city, and his family is fifteen minutes away from the school. It is still possible to come to the school in the early morning to commit an offense, but the time is indeed very punctual. If the murderer is Wang Rui, then there may be her people in the school. Wang Rui confessed that he had not left the house all night because the door was locked by her father. We need to confirm this again." Liu Yi knocked on the bed in the dormitory and said.

"Can it be Wang Shuang?" said Wang Jianguo.

"It's very likely, but all this cannot be concluded for the time being. After all, I haven't seen Wang Rui himself!" Liu Yi said.

At this moment, several support police officers and excavators who had just arrived had already excavated on the back of the outdoor toilet. Everything was waiting for the results after excavation. Wang Jianguo looked at his watch and found that there was not much time in the morning...

"Let's go to the teacher's dormitory again!" After Wang Jianguo finished speaking, he took Liu Yi and others to the teacher's dormitory. The teacher's dormitory was not big, with a total of three floors, with six houses on each floor. Cong Zhijun was located at a room on the inner side of the first floor at that time. At that time, there were not many teachers living in the school, so Cong Zhijun lived alone in a room on the inner side.

"No one dared to live in this room. After all, Cong Zhijun once lived in it, and later it became a warehouse. He usually wears some tools." Li Guangxu said as he took out the key and opened the door. The door opened, and a stream of dust scattered from the door frame.

Li Guangxu waved a few times, "Please come in, it's all changed. I wonder if Team Leader Wang still remembers it?" Wang Jianguo saw that the house was full of cleaning tools and some cultural tools such as notebooks. Liu Yi looked around. There were two windows in the room, and guardrails were installed.

"Remember! At that time, the bed was right next to the window! By the way, I remember that the door was a table with curtains hanging on the bed." Wang Jianguo walked to the corner and continued: "There is also a large iron cabinet here, and there are some boxes and food bags for drinks next to it."

Li Guangxu admired Wang Jianguo's memory very much. Liu Yixin thought that there should be four teachers in this room, but at that time, he should have taken care of Cong Zhijun and gave him a room alone.

"What did Xiao Liu find out? I was not present at the time, but just looking at the photos on the information and the ones in front of me. Cong Zhijun's accommodation environment was pretty good, but the bed was blocking the curtains. This was a bit strange. Generally, only girls' dormitory would use this thing. If Cong Zhijun lives alone, it shouldn't be necessary!" Liu Yi spread his hands and glanced at Xu Wei.

"Yes! What is a big man doing with things?" Xu Wei said with his eyes slanted.

"Cong Zhijun should be a cautious person, and he should have many secrets in his heart!"

"Yes! I remembered it. The information says that there are many empty wooden wooden handmade boxes under Cong Zhijun's bed, all of which are big and small!" Zhang Jie hurriedly continued Liu Yi's words.

"Yes, the more people who like boxes, the more things they hide in their hearts. These boxes are like their hearts!" Liu Yi explained.

"What does it mean? Liu Yi, please tell me more about it!" Xu Wei's eyes were straight and he stared at Liu Yi.

"In other words, our inner world also has capacity. Once we accumulate too many secrets, we need something to carry them. The human heart is like a big box, but it is just a spiritual realm. If it is accumulated for a long time, we will suffer from depression, then these boxes are in a sense Cong Zhijun's tool to share the secrets." After Liu Yi explained again, Xu Wei seemed to have a clue.

Wang Jianguo nodded and said, "When I came in, except for the beds that were a bit messy, the rest of the places could be said to be spotless."

"Cong Zhijun should pay great attention to his appearance in normal times. He must clean the places he lives in often." Liu Yi just finished speaking, and a criminal policeman ran in from outside the door and said breathlessly: "Group Wang, Team Wang, you have dug it open, you can go and have a look!"

Several people rushed to the scene immediately. When they were still 200 meters away from the outdoor toilet, Liu Yi and others faintly smelled the stench from feces.

"This smell!" Xu Wei muttered and immediately covered his nose with his hands. Liu Yi saw that the workers at the scene were covered with towels and sweating profusely. In order to save time in handling the case, these excavators worked hard.

Wang Jianguo walked up to several policemen and excavators and said with a smile: "Thank you for your hard work, drink some water!" Li Guangxu walked over with two large bags of mineral water not far away.

"Come on, drink some water! It's going to get hot!" Li Guangxu said while twisting the bottle cap and handing it to these people who have worked hard for two hours.

When Liu Yi walked to the excavation position, he was surprised to find traces of the buried again. They heard one of the excavators say that after digging for a while, the shovel suddenly hit a hard object. After careful look, it turned out to be an iron plate with a thickness of about five centimeters. Bad feces had been deposited under the iron plate. Liu Yi found that due to angle problems, it was impossible to see from the top.

"Xiao Liu, the murderer must have entered here!" Wang Jianguo lit a cigarette, trying his best to let the smell of the smoke overwhelm the stench of these feces.

"Yes, it seems that the murderer has worked hard to dig this tunnel, and it is definitely not done on a whim. It takes time to dig an authentic tunnel, and it cannot be discovered." Liu Yi carefully wiped the width of the hole.

"It should be possible to go down alone." Zhang Jie also leaned over at this time.

"Yes, Cong Zhijun is thin and medium-sized, so he should be able to enter. The scratches on the joints of the limbs on the corpse should have touched both sides of the tunnel when he was dragging the corpse." Liu Yi touched the soil on both sides of the tunnel, which was indeed hard.

"Xiao Liu, let's go back first, and leave it to Xiaowei and the others!" After Wang Jianguo extinguished the cigarette butts, he walked out of Mingguang Middle School with Liu Yi. Liu Yi felt that the case was advancing and it seemed that it would slowly surface.
Chapter completed!