Wen Jiajia and Tian Zhuhai went to Tian’s house together. Dongfang Tuo followed behind secretly. When Tian Zhuhai accidentally saw some of the figures and immediately hid behind the wall.

Tian Zhuhai still cried in a crying voice: "Who is the person behind? So strange..."

"I'm afraid, someone is guilty!" Wen Jiajia said loudly.

Tian Zhuhai looked at Wen Jiajia in confusion.

Dongfang Tuo whispered to himself: "Tsk, think you are amazing."

When they arrived at Tian Zhuhai's home, two policemen were also at the scene.

Dongfang Tuo was mixed with the fun of the neighbors and looked at the two policemen from afar, feeling a little familiar: "Hey? Haven't they been to the school's Black Police Officer and Officer Zhang? That fool Wen Jiajia definitely won't recognize them."

After Wen Jiajia entered the door, she shouted: "Hello uncle and aunt, hello police officer Zhang, black police officer."

Dongfang Tuo was helpless and angry for a few seconds: "Uh..."

Officer Zhang was recording something with a pen: "So, your daughter, Tian Yan, died of suicide."

Tian’s father and Tian’s mother were in pain: “My poor daughter. If my son hadn’t brought the pesticides for fruit trees into the house, my daughter wouldn’t have thought of drinking pesticides to commit suicide. What a useless son…”

Tian Zhuhai knelt down with a thud: "I, I used up all pesticides today, I didn't take them into the house."

Tian’s mother grabbed Tian Zhuhai and slapped him twice in the face.

Father Tian cursed: "You bastard, you must kneel down, kneel down to your sister! Your sister never knows where the pesticide is placed. If you didn't bring it in, how could the pesticide in the video be on the table?"

Officer Black frowned and asked, "Where is that bottle of pesticide?"

Tian’s mother brought pesticides.

The black police officer smelled it and it smelled very strong, it was true that it was a real pesticide.

Officer Zhang said: "Officer Black, is this case over?"

The black police officer was still thinking quietly.

At this time, Wen Jiajia interrupted: "Black Police Officer, I think there is something wrong with the pesticide."

“What’s the problem?”

Wen Jiajia showed the downloaded video of Tian Yan committing suicide to the black police officer: "Watch in this video, there was no bubble produced after the pesticide bottle fell to the ground."

The black police officer suddenly realized: "Xiao Zhang, take the pesticide back for the test to test whether the residual concentration and the original pesticide concentration are consistent!"

Officer Zhang asked in confusion: "Officer Black, do you suspect that there is something wrong with this pesticide?"

Officer Hei said: "The clues provided by this female classmate are very good. If Tian Yan did not drink pesticides and the remaining pesticides in this bottle were added later, then some cases will be investigated."

"What? Maybe Tian Yan is not drinking pesticides?"

"Yes, there is a big problem with her death."

Wen Jiajia said again: "I always feel that something is wrong with the video."

Officer Black looked at Wen Jiajia and said, "You and I thought of it together. This case is definitely not simple."

"Officer Black, I hope that if the case is in a result, please tell me." Wen Jiajia's tone was full of sincerity.

"Yes, but why are you so interested in this case?"

"I...well... there is probably another person who feels a little unbearable. If you want to know the truth, you also want to come to Tian Zhuhai's house to show your concern."

The black police officer nodded with a smile.

On the way home, Wen Jiajia couldn't help but ask Dongfang Tuo: "If you go back that day, will you still encourage everyone to make that decision?"

“Yes, because if we don’t do this, we don’t know what more serious consequences will happen.”

"But this time it comes at the cost of Tian Yan's life! The ball became the catalyst for Tian Yan's murder!"

"How do I know! Yuwen Yan will be at the cost of Tian Yan's life! I thought she would think carefully!"

"Yuwen Yan wanted to take advantage of the brother-sister relationship between Tian Yan and Tian Zhu Hai. She didn't want to pay for Tian Yan's life. But she never thought that the wish she made was too great." Tian Jiajia said, "So, you think you were doing the right thing, but you just think."

"Then can you think of other ways?" Dongfang Tuo roared.

Wen Jiajia was speechless for a moment.

Dongfang Tuo continued: "But you are really persistent enough. In that case, you know you will be disgusted, but you still dare to vote for a veto."

Wen Jiajia shook her head: "No, I didn't vote for that veto."

Dongfang Tuo frowned and looked at Wen Jiajia. She didn't look like she was telling a lie. Who was she? She voted that veto and pushed Wen Jiajia into a situation that made everyone disgusted?

The black police officer returned to the police station and watched Tian Yan's suicide video over and over again. It was really inconsistent, but he couldn't remember what was wrong.

"By the way!" Officer Black was suddenly surprised.

Tian Yan spoke like she was chanting the text. There was a pause between the words "Please don't worry about me" and the words "Please don't worry about me". If it was her own words, shouldn't it be coherent? Even a third-grade student in elementary school, if he knew a word, he would say it coherently.

Could it be...Is Tian Yan's words according to what he said? Perhaps, the pesticides that Tian Yan drank were not pesticides at all. Perhaps, Tian Yan didn't want to commit suicide at all. She just scared her parents because of her poor academic performance. So she was deceived and recorded a suicide video and wrote a suicide note. Then, the murderer killed her again, using the video and suicide note to create the illusion of Tian Yan's suicide!

"Black police officer, the test results are out." Officer Zhang walked in, "The concentration is the same as pesticides, and it is the original one."

"Even so, it is possible that the murderer used real pesticide to wash the bottle." Police Officer Black thought.

"So, we have to do now, find out the real murderer."

The next day, the investigation team came to the vicinity of Tian’s house to continue the investigation. At the same time, Tian Yan was examined for autopsy.

The autopsy report shows that Tian Yan died of poisoning because of the poisoning because of the organic matter in pesticides.

"Black police officer, there is a major discovery." Officer Zhang ran over with something in his hand, "This is found in the trash can."

"What is this?" Officer Hei looked at the things in Xiao Zhang's hand, a broken iron can, exuding the smell of pesticides.

"Could it be...this is what the murderer uses to replace pesticides and check fingerprints."

Officer Hei and Xiao Zhang knocked on the door of Tian’s neighbor’s house with the inspection report.

A skinny old man opened the door, holding a palm-leaf fan in his hand, his mouth was a little unclear, but his thoughts were clear: "Please come in."

When I entered the room, the musty smell mixed with the smell of medicine rushed into my nose.

The black police officer took out the report: "Old man, we retrieved Yuqu's fingerprint yesterday and found that it was exactly the same as the fingerprint on this iron can."

The old man raised his head and closed his eyes, and a few turbid tears came out: "The tumor on Qu'er's face is getting bigger and bigger. He doesn't want to go to school anyway, so that's good... Can I send him medicine every day in the future?"

Officer Black nodded: "We'll wait for him here."

At 6 pm, Youqu came home after class, wearing Fengwei Middle School uniform. He glanced at the two police officers and sat in the chair indifferently.

Xiao Zhang looked at Youqu's face and felt a little disgusted. After being glared at by the black police officer, he forced his disgusting expression and quickly returned to normal.

Officer Hei said: "Student You, I heard that you have always been an excellent student in junior high school. How did you get into the worst middle school in the city in the middle school entrance exam?"

"I had a high fever on the day of the middle school entrance examination and didn't perform well in the exam."

"Oh, then, your relationship with the Tian brother and sister is not very good?"

"Um?"

"Tian Yan didn't do well in the exam, and was afraid of being scolded by her parents, so you coaxed Tian Yan to record a suicide video and write a suicide note. You and Tian Yan colluded with each other and replaced the pesticides with water, so that Tian Yan could drink it. However, you added colorless and odorless highly toxic inorganic substances to the water. Tian Yan could cooperate with you to complete the suicide video, and everyone would think that she really wanted to commit suicide. So no one suspected you. We found an old iron can in the trash can near your home, and the iron can was pesticides. We suspected that you put it in advance.

Pour the pesticides from Tian Yan’s house into the iron can, clean the pesticide bottle with water, and pour the highly toxic solution into the highly toxic solution. After Tian Yan finished drinking it, just in case, you clean the pesticide bottle, pour the pesticides in the iron can back into the pesticide bottle, and then pour out the pesticides. This can be faked to cause the illusion of Tian Yan drinking pesticides. We found this highly toxic substance in Tian Yan’s body, and found some iron oxide films at the bottom of the pesticide bottle, which should have fallen from the iron can. The fingerprints on the iron can be exactly the same as you. Therefore, all kinds of evidence show that it was Tian Yan you killed."

Yuqu, who had originally wanted to struggle for a while, looked pale after seeing the iron can. After a while, he said, "I did it. But before you catch me, I want to stay with my grandfather for the last night."

Officer Black said: "We will give you one night. If you surrender tomorrow, you can handle it with leniency."

"OK."

On the way back to the police station, the black police officer was restless.

Officer Zhang asked from the side: "What's wrong with you? Wasn't the case solved?"

"Juqu clearly said that he didn't do it, why did he admit it when he saw the iron can?"

"It's normal for prisoners to go through this process of quibbling—seeing evidence—to admit it in person."

"No, after all, I have been in a case for twenty years. How many years have you done? Based on my experience, his expression and tone seemed to be that he did not kill anyone, but after seeing the iron can, he learned some truth, which made him rather admit that he was the real murderer than to shelter someone."

Xiao Zhang opened his eyes wide in surprise: "What?"
Chapter completed!