Let you be a policeman and arrest the chief

"Xie Pengyu?" Lu Zhongliang asked in confusion, "Officer Gao, you are not doubting him, are you? This kid is famous for being good. Moreover, he is also a good friend of Jiang Yeming."

Jiang Tian also nodded, "That's true. The two kids are inseparable, even when they go out together. You know, they both have good grades, so they can get along well."

Gao Yang smiled, "Grades have nothing to do with character. Criminals with high IQs are often more cruel. Also, if two people have top grades, they often can't play together. Especially they can't be inseparable, because the truly excellent ones are Aloof. They may appreciate each other spiritually, but they won't play together all the time. "

Lu Zhongliang sighed and smiled: "I understand this, but you can't doubt Xie Pengyu because of this."

"Let me take a look at Mingming's relics first," Gao Yang asked, "Are there any that Xie Pengyu gave to Mingming?"

Jiang Tian frowned and thought for a while, and suddenly shook his head in self-blame, "I don't know! I usually only pay attention to Mingming's studies... I'm not a competent father!"

It seems that although Jiang Tian was a policeman, he still doesn't understand his son.

Several people went to Jiang Tian's residence first.

Jiang Tian had divorced a long time ago because his wife couldn't stand Jiang Tian's day and night work.

Gao Yang saw Jiang Yeming's relics.

It's very simple, mainly books.

There are also various awards, which shows that this child usually focuses on studying.

Gao Yang looked through a lot of things,

but there was no clue at all.

It's just that a few photos caught Gao Yang's attention.

In Jiang Yeming's almost boring life, he rarely went out.

But now students have mobile phones and take photos in the classroom.

It was in the classroom that Jiang Yeming was holding a white flower and talking to the classmate next to him.

That flower seemed to be... lily of the valley!

Gao Yang realized that he might be close to the truth of the matter, and immediately called Du Xiaoxi, "Xiaoxi, tell me, is lily of the valley toxic?"

"Of course it is," Du Xiaoxi suddenly shouted, "Wait, you found lily of the valley, where is it? If so, then it's right."

Gao Yang told the situation, and Du Xiaoxi shouted excitedly, "I said the toxicity test doesn't match. If it is lily of the valley, long-term and small-scale contact may cause symptoms similar to heart disease. Captain, you are awesome!"

Gao Yang turned to Jiang Tian next to him, "Do you still have this kind of flower at home?"

Jiang Tian shook his head subconsciously, but then went downstairs. When he came back, he was holding a book in his hand, and several pages of it had been wet.

Gao Yang smelled it and there was a slight sweet smell.

Gao Yang turned to the pen holder next to him, picked up a pen and smelled it carefully.

Lu Zhongliang asked in confusion, "Gao Yang, what is this?"

Gao Yang looked solemn, "Let the forensic department come. If I'm not mistaken, most of the things in this room have lily of the valley juice."

"Lily of the valley?" Lu Zhongliang's eyes lit up, "The whole plant of lily of the valley is poisonous. Do you mean that someone smeared lily of the valley juice on Jiang Yeming's utensils?"

Gao Yang nodded. In fact, he already had a candidate in mind.

Someone who can have long-term contact with Jiang Yeming and understand the toxicity of lily of the valley.

Jiang Tian's face twitched and he roared: "Could it be him? Is it Xie Pengyu?!"

Soon, the forensic department of Tongling City Bureau came.

And Du Xiaoxi also rushed to the scene with the slice of Jiang Yeming's heart that was taken out.

"Captain, the deceased was found to have lily of the valley glycosides in his body. This is a cardiotoxin extracted from lily of the valley plants. It is a strong cardiac depressant and has a significant inhibitory effect on the myocardium." Du Xiaoxi pointed to the slices in the test solution, "The toxicity can directly act on the blood circulation system, causing uninterrupted nausea, vomiting, abdominal pain, arrhythmia and other symptoms."

Jiang Tian nodded frantically, "Yes, that's right. He clearly said he felt nauseous and had a headache a few times before, but I didn't take it seriously."

The forensic doctor of Tongling City Bureau next to him nodded, "According to my preliminary judgment, almost all the stationery, clothes and cups in this room have been contaminated. A large amount of lily of the valley juice."

Jiang Tianyi shouted, "These are all taken back from Mingming's school! So, someone killed my son."

Du Xiaoxi nodded, "From the current evidence, it is true."

The forensic doctor sighed, "Although lily of the valley has toxins, this kind of poisoning method must be applied frequently and replaced in a short period of time, otherwise the toxin will not be fatal. The person who poisoned is an expert."

"That's right!" Lu Zhongliang was stunned, and then called the school leader, "Principal Lu, please go to the police station immediately. There has been a major breakthrough in Jiang Yeming's case."

Lu Jingchun's voice was full of doubts, "What breakthrough? Isn't it a heart attack?"

"No," Lu Zhongliang said seriously, "We found traces of poisoning, and the person who poisoned must be someone who lives with Jiang Yeming day and night. Their classmates are all suspects."

"What?" Lu Jingchun shouted, "Impossible, how is this possible!"

After hanging up the phone, Lu Zhongliang looked at Gao Yang, "Captain Gao, I surrender to you. How did you see the lily of the valley juice in this room?"

Gao Yang shook his head, "It was just a coincidence. If I hadn't held the lily of the valley and taken a photo, I wouldn't have thought of it."

The forensic doctor nodded, "That's right. The juice of the lily of the valley has a certain volatility. It can leave so much, which is enough for testing, proving that the murderer frequently replaced the fresh juice. From the perspective of forensics, the murderer has made a careful plan and is well versed in pharmacology."

Lu Zhong Liang clapped his hands and held his forehead, "Xie Pengyu's mother is a pharmacology expert! Xie Pengyu is a good friend of Jiang Yeming. Captain Gao, you suspected Xie Pengyu before, and I said it was impossible. Now it seems that Xie Pengyu is the biggest suspect!"

Du Xiaoxi nodded, "It is impossible for pharmacy experts to fail to detect lily of the valley glycosides. I think the case is already very clear. Xie Pengyu's mother is covering up."

Gao Yang nodded, "Well, Captain Lu, you take people to control all the students in Mingming's class, and Xiaoxi and I will go directly to Xie Pengyu's home to see if there is any evidence. Today is Thursday, and Xie Pengyu's family is probably at work. Xie Pengyu is a single parent, right?"

Lu Zhongliang clapped his hands and smiled, "That's right, Xie Pengyu only has his mother Bai Jie - it's a good idea to control Xie Pengyu in school and then search his home. This will avoid alerting the enemy. I hope the other party has not destroyed the evidence. '