Chapter 32 Chapter Sixteen: The Secret of the Roof

Wang Xi's extreme reaction made people even more suspicious that he was the murderer, so I insisted on investigating on the top of the building and asked Principal Wang for the key. Principal Wang said in embarrassment: "Although I have the key to the roof, but because I don't need it at ordinary times, I kept it at home and didn't bring it with me." "Who else has the key to the roof?" I asked. "The backup keys of all the door locks in the school are placed in the reference room and kept by Director Wang. Except for my one, there is only a backup key in the reference room." He glanced at Wang Xi.

Wang Xi answered immediately: "The spare keys are all locked in the drawer. It just so happened that I forgot to bring the drawer key today." His eyes flickered, obviously lying. The more Wang Xi didn't want us to go up to the roof, the more it meant there was something wrong with the roof. Of course I would not let go of this key clue, so I asked Principal Wang if he could go home and bring the key. "Okay, my house is not far from the school, please wait a moment, I'll get it right away." Principal Wang said and walked out the door. Wang Xi stopped him and said in a panic, "There are only two keys on the top of the building. You didn't go up, and I didn't go up. What's so interesting! They're just looking for trouble, so why should we waste time with them?"

Principal Wang had always been very polite to Wang Xi before, but at this moment he suddenly glared at him angrily: "Xiaoxi, are you doing something bad again?" "I will do something bad!" Wang Xi's complexion was not very good, obviously he was hit by President Wang's words. "Since you didn't do anything bad, why didn't you let us go to the roof?" Zhen Zhen gave Wang Xi a look. Wang Xi avoided her gaze unconsciously, and replied without confidence: "The roof is nothing to see at all, and it's just a waste of time to go up." Seeing that Wang Xi could no longer find an excuse, I smiled and said, "Okay, Director Wang is busy, so let's not waste his time. Zhenzhen, you go home with Principal Wang to pick up the key, and hurry back." Zhen Zhen nodded and immediately accompanied Principal Wang home.

After they left, Wang Xi paced back and forth in the corridor outside the door uneasily, and Wang Da also smoked in the corridor idly.At this time, Fleeting Years was preparing to transport Teacher Lu's body, and there was nothing worth noting in the room.So I went to the corridor, intending to talk to Wang Xi. I offered Wang Xi a cigarette, but he didn't accept it, and gave me a blank look, apparently still resenting what happened yesterday.I just laughed it off, lit a cigarette, and said to myself, "We went to the air-raid shelter last night." He was still walking back and forth, as if he didn't hear what I said, so I could only continue talking to myself: "You said that the hidden mirror ghost is not in the air-raid shelter, we were almost killed by her last night."

He still ignored me, it seemed that he had to give him a strong dose of medicine, so he said lightly: "Last night, I seemed to see your car parked outside, why did you come back so late?" This trick seemed to work. He suddenly looked back at me and said in panic, "You, you must have read it wrong. I drove an Audi last night, not a Hummer." I walked up to him and smiled mysteriously: "I didn't say I saw any car." He looked at me in astonishment, and it took a moment to react.I didn't give him any chance to defend himself, and then I said in a stern tone: "Mr. Lu was killed by you!"

"You talk nonsense, I didn't kill anyone." He backed away in panic, almost tripping. I took advantage of the momentum, approached him with a stride, and asked: "Then why did you lie? You clearly came last night." "I haven't been here, you read it wrong." He stepped back again, but this time he tripped because he was too hasty. I grabbed his collar, pulled him up, pointed to the shoe prints on the door, and said sharply, "Did you leave these shoe prints?" He nodded in horror: "Yes, it was printed when I knocked on the door this morning."

"Lie!" I suddenly pushed him away, walked to the door, kicked hard, and made a shoe print.Then he grabbed his collar again, pulled him to the door, pointed to my shoe prints and said, "Look carefully, what's the difference between my shoe prints and yours?" He broke free from my hand and said calmly, "It's just shoe prints, what's the difference?" On the surface, there is no obvious difference between the shoe prints on the door except for the pattern and size, but if you look closely, you can find that my shoe prints are different from the other four shoe prints. Print color is slightly darker.

I pointed this out and explained: "Shoe prints on a vertical plane, dust particles will fall due to gravity. The reason why my shoe prints are deeper than yours is because they have just been printed on." "What does this mean? My shoe prints were printed in the morning, and of course they will be lighter than yours." Although he still tried to calm down, he seemed to lack confidence. "If it was printed in the morning, then you kicked too lightly." Liu Nian came out of the room to watch the excitement. Wang Xi took a step back unconsciously, his face gradually turning pale.

I took out my mobile phone and raised it to him, smiled and said: "When the technical team comes over, we will know when these shoe prints were printed. If it was last night..." Before he finished speaking, Wang Xi suddenly Turn around and run to the stairs. I couldn't help being stunned by Wang Xi's sudden appearance, and I instinctively stepped forward to catch up.However, at this moment, Wang Da, who had been silently leaning against the wall, suddenly stood in front of me intentionally or unintentionally.Although it was only a moment of obstruction, it was enough for Wang Xi to rush downstairs.

"Why don't you catch up?" Although Liu Nian was talking to me, his eyes were fixed on Wang Da, "If he left these shoe prints last night, then he is very suspicious." "Didn't you see that he ran faster than Liu Xiang? I'm not Zhenzhen, so I can catch up." I shrugged and looked at Wang Da, and said to him, "You can't run as fast as I do. Bar?" "I didn't realize it just now." With an understatement, he completely shirked responsibility. "I really don't know how you guys failed the physical fitness test." Liu Nian glanced at Wang Da, then returned to the room and continued to prepare for transporting the corpse.

In fact, even if Wang Da didn't block me, I might not chase after him, because there was no need for it.First of all, there is not enough evidence to prove that Wang Xi is the murderer; secondly, it is impossible for a dude like him to run away. After all, he is used to living a luxurious life. No matter where he goes, he will ask his father for money sooner or later.As long as he contacts his father or uses a bank card, I can find him. Third, if he stays, at least he can give himself a chance to justify himself, but once he escapes, there is only a wanted warrant waiting for him. When he was caught, it would be much easier to get him to tell the truth.Therefore, it is in my better interest not to pursue him now. About 20 minutes after Wang Xi escaped, Zhen Zhen and Principal Wang came back with the key.When Principal Wang learned of this, he was furious and called Wang Xi an idiot who couldn't help him. He also called his father, Wang Fa, and told Wang Fa to take him back immediately, otherwise he would spend the rest of his life in jail to see him. After Principal Wang hung up the phone, I proposed to go to the roof to investigate first. Anyway, Wang Fa might not be able to bring Wang Xi over immediately.Principal Wang didn't refuse, and immediately took Zhenzhen and me to the top of the building, and Wang Da also went up with us. The iron door leading to the roof was locked with an ordinary brass lock. The color of the lock was dim. It should have been used for several years, making it doubtful whether it could be opened again.However, Principal Wang easily opened the copper lock, which shows that the copper lock is often opened, which means that people often come in and out.Except for Principal Wang, the only one who can freely enter and exit the roof is Wang Xi who holds the backup key. Wang Xixian repeatedly prevented us from going to the top of the building to investigate, and then escaped because he failed to give a reasonable explanation for the shoe prints. In addition, he was suspected of strolling on the top of the building, and it is almost certain that he was related to Teacher Lu's death.But these are just speculations. To confirm whether he is the murderer, we must find solid evidence, and the evidence is behind the door. In order to avoid destroying the evidence, I asked everyone to wait in the stairwell and enter the roof alone. I tiptoed carefully into the roof, carefully looking for a place to tie the rope, and paying attention to every shoe print on the ground. There are no sundries placed on the roof, and there are no flagpoles or anything like that. Except for the stairwell and the parapet at the edge, it is just like flat ground, and there is no place to tie a rope at all.Since there is no place to tie a rope, how did Wang Xi climb into Teacher Lu's room? Judging from the lying posture of the corpse, the murderer should have launched the attack from outside the window. If there is no place on the roof where a rope can be tied, the murderer would not be able to descend from the roof to commit the crime.I suddenly remembered the shoe prints on the door. Could it be that Wang Xi didn't attack Teacher Lu from the window, but entered the room through the door first, and then escaped through the window after setting up the illusion of killing people in the secret room?Then why did he prevent us from going to the roof to investigate? Just when I was wondering about this, I suddenly found two sets of obvious shoe prints in front of the parapet above the window in Teacher Lu's room.The two sets of shoe prints are arranged one behind the other. The rear set is consistent with the shoe prints on the door, which should be left by Wang Xi, while the front shoe prints should belong to a pair of high-heeled shoes. Strange, did Wang Xi find a woman as an accomplice? Frowning at this, I found a piece of evidence near the shoe prints that left me dumbfounded - a condom! I immediately sat on the floor weakly. The evidence in front of me was enough for me to understand what happened here last night and why Wang Xi obstructed the investigation. "Officer, Wang Xi's father has found him and brought him here immediately." Principal Wang's voice came from the stairwell, and there was nothing worth investigating here, so I put the used condom on the ground into the evidence bag, and returned downstairs with Principal Wang and others. We waited in the teacher's room on the first floor for about ten minutes, and Wang Xi was led in by his collar by a man in his fifties with an angry face.As soon as the man entered the door, he said angrily: "What trouble did this brat get into again!" Principal Wang told him not to get angry, and introduced to us that he was Wang Xi's father, Wang Fa. In front of his furious father, Wang Xi was like a child, keeping his head down and not daring to say a word.Looking at him like this, it is really difficult to connect with the murderer.I think that if I ask him about anything now, he will say it verbatim, so he doesn't beat around the bush, and directly shows that he found the condom on the roof, and said to Wang Fa: "I found this on the roof just now. Apart from Principal Wang, the key to the top of the building is only held by your son, so I don’t think this condom was left by Principal Wang, right?” Wang Fa was stunned for a moment, then slapped Wang Xi on the back of the head in anger, and cursed: "I don't have the money to let you go to the hotel, so I came to the school to do such a thing! Are you really shameless?" Wang Xi lowered his head, didn't even dare to look at his father, and didn't answer.Wang Fa continued to yell at him.I was not interested in watching the farce between father and son, so I clapped my hands to signal Wang Fa to stop first, and said: "Whether your son is looking for sex on the roof is not the point of the question. The biggest problem now is that Mr. Lu died last night, and your son died last night." It happened again, so he must explain this matter clearly. This is a crime of beheading, and it cannot be solved by spending money." Realizing the seriousness of the problem, Wang Fa stopped fighting in front of us, and said to Wang Xi seriously: "You heard it all, tell me what happened last night, if you really committed a crime I can't help you if it's over. However, if someone wants to wrong you, I won't let them succeed even if I try my best!" Although Wang Fa spoke righteously, as if he was ready to kill his relatives righteously, he still favored his son in his heart.Wang Xi has his backing, so naturally he can't tell the truth, it seems that I have to come up with a trick. I solemnly said to Wang Fa: "Mr. Wang, the police must seek truth from facts when handling cases, and will never wrong any good person. The reason why we think that your son is suspected of killing Mr. Lu is because Mr. Lu knew a secret about your son." "My son acts aboveboard, so don't talk about any secrets." Wang Fa glared at me angrily. "Actually, it's not a big secret, but I'm afraid you will be very angry after hearing it." I smiled lightly, and then asked seriously: "Mr. Wang, do you have any cardiovascular or cerebrovascular diseases?" "Joke, my health is very good, and I don't have any diseases." He gave me a hostile white look. "That's good, that's good..." I paused and said, "Ms. Lu once told me that the son's calligraphy certificate was bought with money, and his calligraphy level is actually not even comparable to middle school students." Wang Fa was stunned for a moment, then slapped Wang Xi on the back of the head, and scolded angrily: "You brat, you dare to lie to me even about this kind of thing! You can settle your affairs yourself. I won't care anymore!" After saying that, he walked away without looking at Wang Xi again. Wang Xi stared at his father's leaving figure, froze for a moment before trying to catch up, but was caught by Zhen Zhen.He struggled in panic, Zhen Zhen finally pushed him down on the chair and handcuffed him. "No one can help you now, you'd better tell the truth about what happened last night obediently!" I found a chair and sat in front of him, lit a cigarette and said leisurely: "Don't try to lie anymore, just When you lie, there will be loopholes, and every mistake and omission will increase your suspicion. In other words, the more lies you tell, the worse your situation will be." "I didn't kill people, I really didn't kill people..." Like a dejected prisoner of war, Wang Xi told us what happened last night—— Yesterday afternoon, after having a bad fight with you guys, I was very upset, and I wanted to have some fun, so I just let it out.After school, I drove the Hummer home, put on an Audi, went to the city to meet some buddies for dinner, and then went to the bar to pick up girls. As I told you before, as long as you have money in your pocket, you don't have to worry about not having women.I have a lot of money, and I am handsome. It is not difficult for me to pick up girls. It didn't take me long to get a girl to drink with me.Because I was in a bad mood, I drank a lot last night and played like crazy. I didn't leave the bar until late at night. After eating supper, the buddies all left with their arms around the girl, and I also took my sister to find a place to have sex.Originally, I could take her to the hotel to have sex, but maybe I was too drunk and felt that going to the hotel was not exciting enough and boring, so I wanted to take her to elementary school. Although I drank a few more drinks, my driving skills were very good, and I drove the Audi to the gate of the elementary school in the blink of an eye.I took Taimei to the reference room and played there for a while, but I still felt that it was not enjoyable enough, so I went to the stairwell with her to play. I wanted to have fun with her in the stairwell, but she said the stairs were dirty and wouldn't lie down.While making out with her, I walked up and reached the third floor in a short while. When I got to the third floor, I thought of Mr. Lu's room, so I slammed on the door of his room and asked him to open the door for us to go in and have sex...