Chapter 028 - 029:

Chapter 28 Chapter 7
Hearts 3 rooms, the next day.
When Xiao Lou woke up, Yu Hanjiang was standing by the corridor window, his deep eyes staring in the distance, his brows frowning, as if thinking about something.
Xiao Lou walked over and asked "Yu team, are there any new discoveries?"
Yu Hanjiang pointed to the maple forest and said, "Several maple trees were blown down there last night."
Xiao Lou followed his gaze and saw that in the distant maple forest, a large number of maple leaves fell under the rain, and the ground seemed to be covered with a thick red carpet of maple leaves. At the end of the maple grove, several young saplings planted shortly afterwards were blown to the ground by the wind. The flower beds downstairs turned upside down, many flower pots were broken, and the entire campus was messy, like a typhoon crossing.
At six thirty in the morning, the rain had stopped.
At this time, the two were supposed to go to the school gate to squat, there must be new clues on the new day. However, last night they sneaked into the Shuxiang Tower to investigate and alarmed the security. The gate of the Shuxiang Tower was locked by the security guard.
Xiao Lou didn't sleep well last night. He rubbed his temples with a headache and said, "It's almost time for class. How can we go out?"
Yu Hanjiang looked calm, and pointed his finger at the air-conditioning pipe outside the window "crawling out."
Xiao Lou "..."
Yu Hanjiang took the attitude of surviving the secret room of spades in the heart of the red peach. He simply opened the window, leaned forward, grasped the air-conditioning duct accurately with both hands, and stepped down one by one with his feet on the edge of the window that was only 10 wide.
Xiao Lou's heart was mentioned in his throat.
So high, if he stepped on the air with one foot, it would be over!
But it turns out that Xiao Lou ’s worry is superfluous. Yu Hanjiang seems to often do this kind of thing—climbing and jumping. Men are familiar with various types of light vehicles, and they quickly choose the most convenient path and land on the ground steadily. Up, looked up at Xiao Lou.
Xiao Lou poked his head down and looked down. Of course, he didn't dare to climb down the window on the fifth floor ... He didn't want to fall halfway.
Yu Hanjiang gave him a gesture of "downstairs waiting for me" and quickly walked to the door of Shuxiang Tower.
The Yu team didn't know where to find a wire, and tossed the door open for a moment. Xiao Lou was waiting at the door. When the Yu team opened the door, they couldn't help thinking-thanks to Yu Hanjiang as a policeman, if he was going to be a flying thief, no one could stop it?
Yu Hanjiang seemed to see Xiao Lou's doubts, and he restored the door lock while explaining, "When I was in a police school, a senior taught me how to unlock, and he liked to study these gadgets."
Xiao Lou nodded, without asking, turned with Yu Hanjiang to the school gate,
At seven o'clock, students came to the school one after another.
Xie Xinghe came very early today, and it is strange that a black gauze was tied outside his school uniform-black gauze was meant to commemorate the dead, and the person he was remembering was obviously Ying Xiaoya who had fallen down yesterday.
Xiao Lou couldn't help seeing here. From Xie Xinghe's confession, his relationship with Ying Xiaoya is very average. But he wore a black veil today, at least to show that he was very mindful of Xiaoya's death.
It didn't take long for Yi Ru and Yu Hui to come, also wearing black gauze on their arms.
The three met at the school gate and couldn't help it.
Yu Hui frowned and stepped forward, glanced at Xie Xinghe's arm, and said, "Xie Xinghe, what are you wearing this for? Xiaoya, our family doesn't need you to sacrifice!"
Xie Xinghe said blankly, "I know that your hostility to me is difficult to resolve. However, I have been with Xiaoya for three years, and her death ... I am also very sad."
What else did Yu Hui want to say, Yi Ru said, "Do n’t bother, do you want to be watched at the school gate?"
Yesterday Yi Ru collapsed. She cried for a long time in front of the police. After a whole night of adjustment, she has returned to normal, but she has thick dark circles under her eyelids. She looks tired and obviously hasn't rested.
Yu Hui walked coldly.
The three entered the third-grade Chongwen Building one after the other and remained silent on the road.
The other students should have nothing to do with the case, and the content of the discussion was not valuable. Xiao Lou and Yu Hanjiang still did not recognize the faces of thousands of students, but the two did not leave the school gate.
They showed up in the chemistry teacher in class 3 (3).
At 7:25, 5 minutes before the early morning class, a tall female teacher walked quickly into the school gate.
She has short, pierced ears, black pencil pants and a white shirt, a long khaki trench coat, and high-heeled shoes. She walks elegantly, as if she had learned professional dance. Posture looks very temperamental.
The security guard greeted her, "Ms. Qin, have you come to work?"
The female teacher smiled and nodded toward the security guard, walked quickly to know the building.
Xiao Lou and Yu Hanjiang were immediately alert.
Teacher Qin, the security guard specially greeted her, it seemed to remind the challenger, this is the 3 class chemistry teacher who asked for leave yesterday.
Xiao Lou and Yu Hanjiang glanced at each other and quickly followed her.
She went directly to the chemistry office on the third floor of Xingzhi Building. As soon as she entered the office, a colleague told her, "Slightly, you're really lucky. Yesterday, you asked for leave. Didn't you know? There is a student in class 3. Suicide by jumping off the building! "
Qin slightly froze for a moment, then suddenly turned back "What? Who jumped off the building?"
Colleagues said, "This month's exam, Ying Xiaoya, the penultimate student of the year."
The expression on Qin Weiwei's face was full of shock. "How could that be? I remember that girl was studying very hard. This time, she didn't do well in the exam, but it was an accident. I also want to encourage her. If she didn't take a test, she didn't need to jump off the building and commit suicide? "
Xiao Lou and Yu Hanjiang pretended to be passing teachers and saw the situation in the office clearly.
Qin Weiwei, a chemistry teacher, is either deep-working, first-class acting, or really innocent. I do n’t know what Xiaoya should do when she jumps off the building. What kind of situation is? I ca n’t reach a conclusion. The police will definitely come to investigate today. she was.
Today's morning class in class 3 is a Chinese class. The class teacher asked everyone to memorize the text for half an hour.
The first class at 8:10 happened to be a chemistry class. Qin Weiwei prepared the textbooks and walked out of the office to go to class 3 (3). Yu Hanjiang and Xiao Lou came out of the bathroom opposite the office and looked at her back. Yu Hanjiang whispered, "Follow Qin Weiwei, I'll wait for the police at the school gate and come back to you later."
Xiao Lou nodded and followed Qin Weiwei calmly.
During the class, there were many teachers coming and going in the air corridor, and she did not notice Xiao Lou behind her.
Qin Weiwei walked into the classroom with the textbook—I do n’t know if it was because of yesterday ’s accident that Ying Xiaoya fell down, or because her mental quality was really too strong. She took this class very seriously, even though many students in the audience Absent-minded, she also did a good job as a teacher and finished this lesson.
Xiao Lou is also a teacher. From the perspective of her peers, the teacher Qin is a first-class in her class. Her chalk is correct and timeless. She never speaks nonsense in the class and is well prepared. The 45-minute class is organized. The main and subordinates are clear, the key knowledge is made clear, and it can be taken directly as a demonstration class.
Xiao Lou couldn't help touching his chin in doubt ... Is such a teacher really a cruel murderer?
At this time, Yu Hanjiang was standing behind a tree and staring in the direction of the school gate.
The police are here!
The four police officers coming today are the same as yesterday. Obviously, after the forensic doctor took the body back yesterday, he dissected and confirmed the cause of death, and told the criminal police all the information he knew—these police came with a lot of clues.
They first approached the principal and vacated an office in Xingzhi Building. They immediately called up the physical education teacher in Class 3 and the security guard on duty yesterday.
The office door was about to be closed, and Yu Hanjiang immediately put on a cloak to enter and listen.
The policeman opened a recording pen and asked the PE teacher while recording. "Who was calling you during the time when Xiaoya was in the gym class yesterday?"
The physical education teacher quickly said, "It's Teacher Qin. Didn't she change classes with me? I called to care about the students' situation. I asked her where she was, and she said that she would take her father to the hospital to do it. an examination."
"Are you familiar with Teacher Qin? Did you meet her yesterday?"
"Very familiar. We were assigned to this school together five years ago, and we always took the same class. She changed classes with me when something happened." The physical education teacher paused and said, "She took leave yesterday. I Never seen her. "
"What kind of person do you think she is?"
"Very cautious, attentive, and beautiful, Mr. Qin is very popular in school."
The police called the security guard again and asked some questions, "Have you met Teacher Qin yesterday?"
The security guard looked puzzled. "I haven't seen her. Didn't she ask for leave? I saw her come to work this morning."
"You are keeping the key on the rooftop of Xingzhilou, have you lent it to anyone?"
"No ..." The security guard suddenly thought of something and straightened up. "However, my whole bunch of keys were accidentally lost during the school patrol last month. It was returned to me after Mr. Qin picked it up."
The two police officers stared at each other. "Are you sure you are Teacher Qin?"
Security guard "Of course, after she gave it back to me, I thanked her for a meal!"
After the case-related personnel stepped out of the door, the two policemen began to discuss in a low voice.
The captain said, "This teacher Qin has too much problems. She brought back the monitoring data yesterday. She happened to come to school when the deceased had an accident to prove that she was lying. The keys were also picked up by her and returned to the security guard. The poison is organophosphorus, and she bought a bottle of organophosphate when she bought drugs last week. "
The policewoman said, "The poison in the deceased was found in Yu Hui's chocolate. Yu Hui is also very suspicious."
The captain said, "Yu Hui should have no problem. The chocolate is likely to be dropped, and they will be called for a trial later."
At this moment, a policeman came in, holding a half-bottle of organophosphorus and a signature copy in his hand.
The young policeman said, "Boss, she found the poison in the chemical laboratory."
The captain glanced and said, "You two, immediately go to the third grade (3) squat, and call the three suspects Qin Weiwei, Yu Hui and Xie Xinghe after class!"
Yu Hanjiang's cloak time was approaching, so he had to leave the office and quickly return to class three (3).
Xiao Lou was eavesdropping behind the classroom. Yu Hanjiang walked over and whispered in his ear and said, "The police have arrived, and the suspect will be brought up after class. You go ahead to prepare and follow them to listen to the interrogation situation. I will cover you outside. "
Xiao Lou nodded and returned to Xingzhi Lou with Yu team.
The two hid in the bathroom. Yu Hanjiang briefly retelled Xiao Lou what he had just heard. After the suspect arrived, Xiao Lou immediately put on a cloak in the bathroom and followed the suspect into the interrogation room.
The first to be questioned was Yu Hui.
Yu Hui frowned and looked at the police officer. "Sergeant, didn't you ask me yesterday? Anything else you want to ask?"
Police "Your box of filled chocolates is full of organophosphorus poisons. How do you explain?"
Yu Hui was horrified. "What ?!"
He was stunned for a long time, and finally responded to the meaning of the police: "Don't you think, I want to poison Xiaoya ?! Fuck! What a joke, I treat her as my sister! This chocolate must have been dropped!"
Police "Since you are brothers and sisters, why don't you open your relationship and make people mistake you for a relationship?"
Yu Hui scratched her hair anxiously, saying "I'm the same age as her, only three days older than her. This girl hasn't called my brother since she was a kid. It's embarrassing for two students to be in the same class to let us know that we are brothers and sisters Right? So at school, we both called each other by name, and we didn't expect to be misunderstood! "
The policeman asked, "Did she stay in your house since she was a child? How was your relationship?"
"Her parents divorced when she was seven years old. Her parents were out of town. She didn't care much about her and took care of us in our house. We grew up together and we have a closer relationship than our brothers and sisters."
He paused, followed closely, "So Xiaoya's last letter is definitely not written by her! I'm sorry mom and dad, such parents are sorry for her fart! She really wants to commit suicide, most of all I should be my parents!"
The police then asked, "Have your chocolate been touched?"
Yu Hui "I don't know. The box of chocolates was bought at the supermarket last week. I have been in my bag for a week."
Police "Have you eaten Ying Xiaoya?"
Yu Hui thought about it carefully. "I did give her a chocolate when I ran yesterday."
Police "Why was she late yesterday?"
Yu Hui "Her mother suddenly came back to see her and bought her a mobile phone as her eighteenth birthday present. She was very happy. She went back to stay with her mother in the hotel at night, but did not return to my house. Both of us used to go to school together. Xiaoya gets up very early every day, and I'm surprised that she is late! "
The police asked Yu Hui to go back. He has no motive for killing and has not been exposed to poison, so although chocolate comes out of his hands, his suspicion is the smallest.
More suspicious are Xie Xinghe, who checked the signature of the pharmacy in the experimental class, and the chemistry teacher who bought the pharmacy directly.
Chapter 29 、 The Testimony of the Suspected Maple Leaf 8
Xie Xinghe was quickly brought into the interrogation room.
The policeman asked directly, "Last Wednesday afternoon, was your class in Lab No. 3?"
Xie Xinghe "Yes."
Police "Did the experimental class talk about organophosphorus? The chemistry teacher gave you a bottle of medicine to give you a demonstration?"
Xie Xinghe calmly said "Yes."
The policeman "finally you checked the potion and put it back in the locker?"
Xie Xinghe was silent for a moment, and said, "I am the squad leader. It is my duty to finish the experiments and check the instruments and reagents."
Police "half a bottle of medicament, did you take it?"
Xie Xinghe frowned. "No, the bottle was full when I checked."
The policeman looked at each other and found that Xie Xinghe's expression was calm, not like lying, and his testimony did not have any loopholes, so he went back first and called the chemistry teacher.
Qin Weiwei, who is currently the biggest suspect, walked into the interrogation room with a faint expression on his face.
She sat down, wondering, "Police officer, what do you want to know?"
The policeman said, "Don't you ask for leave yesterday? However, we went back and checked the whole day of monitoring. The monitoring records at the school gate showed that you returned to the school around 11:20 and left around 11:40"
When Xiao Lou heard this, he slightly hesitated, and immediately revived.
Qin Weiwei explained, "I took time off to take my dad to the hospital, and found that my dad's medical insurance card was left at school, so I took a taxi and took it back."
The police "that is to say, in the period when Xiaoya jumped and committed suicide, you were actually in school."
Qin slightly changed his face and said, "Don't you doubt me ?!"
The policeman looked serious. "Please answer your questions and cooperate with the investigation."
Qin took a deep breath and said, "This time, I was really at school. I called the PE teacher and asked the students about his situation. He said he was organizing students to play basketball. I didn't know Ying Xiaoya jumped off the building. I took it. After leaving the health insurance card, I left. "
Police "Last month, the security key was lost. Did you pick it up and give it back to him?"
Qin slightly nodded "yes."
The policeman "So, it is entirely possible that you will go to get a key on the rooftop?"
Qin Weiwei's face was extremely ugly. "What do you mean? What do I do with the rooftop key? After I picked up the key, because I had to go to class in a hurry, I put it in the office first and returned it to the security guard after the class. Maybe someone took the key during this time! "
Police "Did you buy this bottle of organophosphorus?"
Qin Weiwei "Yes, I told the students about organic phosphorus and inorganic phosphorus. I bought a bottle and let them recognize this poison to avoid accidental contact. I also told them about the first aid knowledge of organic phosphorus poisoning ... ... wait, why do you suddenly ask this? "
Police "Organic phosphorus was found in the blood of the deceased, and she was poisoned before she fell. The chemical in the chemical laboratory was taken away halfway. Xie Xinghe said that the drug was full during the inspection and he could take it at the laboratory. The only person taking the potion is you. "
Qin Weiwei's face turned pale "I didn't take it!"
Police "Ms. Qin Weiwei, you are suspected of killing Ying Xiaoya, this is an arrest warrant."
Qin Weiwei couldn't believe it. "Sergeant, you're wrong! I didn't really take any medicine or key, I went back to school just to get my dad's medical insurance card. My dad could testify to me. ... "
The police "return to the police station for investigation."
Before she could finish speaking, a cold handcuff was put on her hand.
The police took the arrest warrant and took Qin Weiwei as the suspect.
Xiao Lou hurriedly followed the police and went out.
Yu Hanjiang pretended to pass by and walked into the bathroom. Xiao Lou also wore a cloak to enter the bathroom.
Xiao Lou said in Yu Hanjiang's ear, "Qin Weiwei was too suspicious. She picked up the security key. The incident happened to be back to school when she called the physical education teacher ... and happened to buy organophosphorus poison."
At this time, the effect of Xiao Lou's cloak was not over, so Yu Hanjiang could only hear him, but couldn't see where he was.
However, the Yu team was very calm, and still looked calmly when talking to the air. "So, the police took her back to investigate?"
Just at this time, Xiao Lou's cloak lost its effect, and he appeared on the side of Yu Hanjiang out of thin air.
Yu Hanjiang glanced at him and said, "What does Professor Xiao think?"
Xiao Lou frowned. "I don't think so."
At this moment, a prompt pops up at the same time in the floating box of the two people-
The reason behind the secret reasoning of Heart 3 is the chemistry teacher Qin Weiwei? whether.
Pay attention to errors in reasoning and challenge failures. You will be punished by entering the nightmare chamber.
They looked at each other and pressed "No" at the same time.
They said in unison "Qin Weiwei is not a murderer."
Yu Hanjiang looked at Xiao Lou with appreciation and said, "How did you analyze it?"
Xiao Lou sorted out his thoughts and said, "First, Teacher Qin has the key to the chemical laboratory. If she wants to take away the organophosphorus poison, she doesn't need to pry the lock, but when we checked the laboratory last night, we found that the door lock was pry. The traces of movement; secondly, she is a chemistry teacher. If she really wants to poison Ying Xiaoya, there are so many means. There is no need to take poison from the chemical laboratory and leave such a big handle. "
He paused, and then said, "According to the forensic test results, Ying Xiaoya was poisoned, and the source of the poison was the chocolate given by Yu Hui. However, the sandwich chocolate can only contain a limited amount of poison. This dose of organophosphorus It is not fatal. Unless Ying Xiaoya is so hungry that she has eaten up a whole box of chocolates-but there is a lot of chocolate left in Yu Hui's bag, which means Ying Xiaoya should only eat one or two. "
Carefully reviewing Yi Ru's confession yesterday. At the time in the physical education class, the boys were playing. The two returned to the teaching building. Ying Xiaoya said that she was hungry and asked Yi Ru to buy food. During the period when Yi Ru went to the store to buy potato chips, Ying Xiaoya might not be hungry, so she ate a chocolate.
When Chinese class ran aerobics, Yu Hui had given Ying Xiaoya a chocolate and Ying Xiaoya put it in her pocket.
Xiao Lou just noticed this scene at the time-Yu Huisai gave her a spherical chocolate with a diameter of about 3, with golden sugar paper on the outside, which should be Xiaoya's one.
The content of a sandwich chocolate poison is very low, which will not cause the user to die directly. However, acute organophosphorus poisoning will still cause reactions such as shrinking pupils and muscle tremors, as long as the rescue is timely.
After eating chocolate, she went to the rooftop and died.
Xiao Lou finally said with certainty that "the real cause of her death was still skull fracture and cerebral hemorrhage caused by falling, and the dose of chocolate poisoning did not cause death."
After Xiao Lou's professional analysis of the poison dose, Yu Hanjiang was more convinced of his reasoning.
He whispered, "Yu Hui's chocolate has been manipulated. On the surface, Qin slightly has enough time to commit the crime, and all the suspects are directed at her ... but the police ignored a key point."
Yu Hanjiang looked at Xiao Lou and asked the other party a question, "If you want to kill someone, will you push the other party downstairs after poisoning the other party?"
Xiao Lou's eyes brightened suddenly.
Yes, poisoning and falling down are all means to kill people. It is not necessary to use it twice!
-This is simply "addition to the snake".
If the killer wants to kill Ying Xiaoya, first of all, he should not use "sandwich chocolate", a food with a very small amount of toxic drugs, and put it in Yu Hui's chocolate ... What if Yu Hui eats it? Isn't it poison Yu Hui? A better method is to directly poison Ying Xiaoya's diet without knowing it or the ghost, to ensure that she can poison her.
And if the murderer wanted to push Ying Xiaoya down from the top of the building and fell to death, copying the testament, causing the illusion of Ying Xiaoya's suicide, then it is not necessary to go all out to poison, but let the police detect poison from Ying Xiaoya's body.
Xiao Lou felt his chin for a moment and thought, "Is it two people committing a crime? But the two contradict each other, so they leave a loophole?"
Yu Hanjiang's eyes were deeply "yes."
This is the thing that Yu Hanjiang had just carefully sorted out all the clues and the testimony of all the suspects in the past two days, and then finally figured it out.
Ying Xiaoya's case can be decomposed.
The first part is a poisoning case.
The other party does not necessarily want to poison Ying Xiaoya, because the poisoning means is through Yu Hui ’s chocolate. The poisoner knows that Yu Hui often sends chocolate to Ying Xiaoya. Therefore, there is a 50% chance of poisoning the sandwich chocolate. Yu Hui, the probability of 50 is poisonous to Ying Xiaoya. It is impossible to confirm who this poisoner is and what his purpose is.
However, it can be confirmed that he did not want to kill Ying Xiaoya directly.
No one will eat dozens of chocolates in one go. Half of a bottle of organic phosphorus is dispersed in dozens of chocolates. The toxin content of each can not kill people, but it is enough to attract people's attention. Perhaps the poisoner is passing What this means to remind.
Excluding Yu Hui, he loves chocolate and has no motivation to poison his sister. Both Yi Ru and Xie Xinghe were suspected. The laboratory door lock was pryed. All teachers who knew that Yu Hui often gave chocolates to Ying Xiaoya were also suspected.
The second part of the case is the fall.
Yu Hanjiang surveyed the top of the building yesterday. The footprints on the rooftop were disorderly. It is very likely that there was a second person at the scene. This person pushed Ying Xiaoya downstairs, directly leading to Ying Xiaoya's death. In addition, this person was very clever to copy the handwriting, forged a "testament" for Ying Xiaoya, causing Ying Xiaoya's illusion of "suicide".
This person is the one who really wants Ying Xiaoya to die!
Unfortunately, he and she did not know that Ying Xiaoya had been poisoned before falling.
The police took the body back and found that Ying Xiaoya was poisoned. In this way, the police would quickly rule out the possibility of Ying Xiaoya's suicide-the last note of Ying Xiaoya faked by the murderer became the biggest failure.
The forensic source of the poison was detected, and the police locked chocolate, organic phosphorus, and the laboratory. All suspects were directed to the chemistry teacher Qin Weiwei.
Although Teacher Qin was taken away for investigation, the police soon concluded that she was not the murderer.
Because it doesn't make sense.
No one is stupid enough to cast a small amount of toxins before pushing people off the rooftop and forging suicide notes.
The case will soon be split.
One person dropped a toxin-filled sandwich chocolate, and the other pushed Ying Xiaoya off the rooftop. Because the two did not know each other's actions, they created a huge oolong.
Yu Hanjiang glanced at Xiao Lou and said, "There was a heavy rain last night and the school was so chaotic. Today, the campus will definitely be cleaned on a large scale. The killer may destroy the evidence. We must grab the killer."
Xiao Lou also became nervous. "Where does the Yu team want to search?"
Yu Hanjiang "The largest dustbin in the corner of the school."
Fenglin High School's teaching building and office building are equipped with small trash cans. The garbage that students clean up every day will be concentrated in these small trash cans, and then the cleaners will receive the trash in the trash can behind the playground.
This bin should be cleaned every two to three days, and a professional garbage truck will come over and pull all the contents away.
Last night, the campus was cluttered due to heavy storms. In the morning, after cleaning the playground, the cleaners concentrated a large amount of leaves, broken branches, broken flower pots and other garbage into the trash can. The car came over to clean up.
When Yu Hanjiang and Xiao Lou came near the bin, the cleaners were just picking up trash.
Xiao Lou stepped forward and walked towards the cleaners. "Auntie, sorry, I am a senior teacher. Yesterday I accidentally threw important documents to the trash. Can I find them here?"
The cleaning aunt said, "Oh, what kind of documents? It's too dirty here, don't touch the teacher, we will help you find it."
Xiao Lou said nervously, "It is my teacher qualification certificate. When I lost the waste paper yesterday, I threw it without seeing it clearly. Please help me find it. I'll wait here, thank you."
Yu Hanjiang "..."
Professor Xiao's acting skills are very good.
With this reason, the two can stand squarely and observe the trash can.
The cleaner aunt rummaged out of the trash while helping them find the certificate, and said in his mouth, "I will check the litter in the future. What do you do if you find such an important certificate?"
Xiao Lou nodded. "I was too negligent."
Just then, Yu Hanjiang's eyes narrowed sharply. "Wait."
The cleaner stunned, "What's wrong with the teacher?"
Yu Hanjiang walked over, not too dirty, and picked up a pair of shoes from a pile of waste paper and messy leaves ...
It is a pair of women's canvas shoes with a size of 37, which is the same as Ying Xiaoya's shoes.
The cleaner saw this and couldn't help but said, "Who lost the shoes? The shoes look quite new!"
Yu Hanjiang and Xiao Lou looked at each other.
Important evidence was found.
Ying Xiaoya's footprints on the rooftop were so messy because there were two people's footprints-the other person wore the same shoes as hers. The fragments of her scarf were left on the rooftop. It must be that the two had a conflict before she was pushed down.
The killer threw the shoes that didn't fit into the trash because the killer knew the school's trash can would be cleaned today.
As long as the garbage truck takes away the garbage, there is no evidence of death.
Unfortunately, Yu Hanjiang and Xiao Lou found these shoes.
Prove that their inference was correct.
In Ying Xiaoya's case, two murderers were operating at the same time!