From the words of the bar owner, it can be known that Xu Tiantian definitely has no time and no chance to poison Wu Dongdong. However, new problems arise. According to the bar owner, Wu Dongdong drank for less than five minutes, and that time should have been around eleven twenty. There should still be some time before Wu Dongdong's death. So where did Wu Dongdong go during this time?

At this moment, the test report of the small red dot found under Wu Dongdong's squeaky nest also came out. The red dot is a pinhole, and that's right. Moreover, the poison injected should be something slightly toxic. However, even if this kind of thing is injected into a person's blood, it is difficult to kill a person, so what is going on?

Slightly poisonous, drank too much, and there was still residual poison in the stomach. Several clues were mixed together, and Long Xingyun felt a little confused in his brain. Seeing that Long Xingyun was a little uncomfortable, Tang Xin took a step forward: "Xingyun, are you okay?" ”

"It's okay," Long Xingyun shook his head, "I just can't figure it out." It was poisoned, but it was not all the poisons we found that poisoned him, which is a bit incomprehensible. ”

"It's not a poison found, could it be a highly toxic substance produced by the reaction of several things together?" Cai Lifeng, who was on the side, said his thoughts. After all, there are many cases of using this situation to kill people, and as a deputy director, he also thought of some possibilities.

"No," Long Xingyun denied Cai Lifeng's statement, "According to the analysis report, it is not that case. If you have to look for it, I'm afraid, you can only look at when and where these things were ingested or injected by him. ”

"The first is drinking. According to Wu Dongdong's classmates, the two of them only drank a bottle of liquor, and the two of them drank about the same, only close to half a catty. According to the situation after the investigation, Wu Dongdong's alcohol consumption is not small, and generally speaking, it is not a problem to drink seven or eight taels. Moreover, if a person has drunk alcohol and is still sane, it is clear that he is not drunk. ”

Next, it was he who went downstairs to the girls' dormitory. Coupled with Xu Tiantian's behavior and the testimony of the bar owner, it should be that after Wu Dongdong came downstairs to the girls' dormitory again, he called Xu Tiantian or sent a text message to ask her to come down, saying that he was looking for her for something. However, when Xu Tiantian hadn't gone downstairs yet, Wu Dongdong left, and he should have asked Xu Tiantian to meet somewhere else. ”

After meeting, the two went to the bar. However, because Xu Tiantian rejected Wu Dongdong, after a few words with him, he left. Wu Dongdong, on the other hand, asked for a few shots of depth charges in a distraught manner. As far as I know, this kind of wine has a lot of stamina, and he drank so violently that he might be fine at first, but then, he should be a little drunk. Speaking of this, Long Xingyun cast his eyes on the photo that was placed aside.

After looking at it carefully for a while, Long Xingyun turned to Tang Xin: "Xin'er, after discovering that Wu Dongdong died, did anyone touch the scene?" ”

"There shouldn't be this, I'll call Zhang Lei to come over, he was the first to rush to the scene, and he should know best about what happened at that time." As he spoke, Tang Xin dialed Zhang Lei's phone.

After about five or six minutes, there was a rush of footsteps outside the house. Immediately after, there was a knock on the door. After getting permission, the man opened the door and walked in: "Captain Tang, you came to me, is there anything wrong?" ”

"Well, sit down," Tang Xin nodded, and only after Zhang Lei sat down did she continue, "In this case, we found a criminal investigation expert to come over, and now we just want to ask you about the specific situation at that time." With that, she introduced Long Xingyun to Zhang Lei.

For the title of criminal investigation expert, Long Xingyun was extremely helpless. Which of his identities is not prominent? Of course, Long Xingyun didn't mean to show off. However, this criminal investigation expert, he is really not used to it. However, now he has to get used to it, he can go to inspect the body and participate in the case, it is because Cai Lifeng and Tang Xin said that he is a criminal investigation expert and is specially here to help, so he is allowed to participate in this case.

Hearing that Long Xingyun was a criminal investigation expert, Zhang Lei was first shocked that Long Xingyun was so young, and soon, he threw the surprise aside. Look at how old Tang Xin is now, he is the captain of the North City Criminal Police Brigade. Some people may think that she sat in this position because of her father's relationship, but the actual situation, Zhang Lei is very clear. Because he and Tang Xin have also had several missions, he knows that Tang Xin has been able to get to this point completely because of his own hard work. Therefore, Long Xingyun is younger, and there is nothing unacceptable.

Zhang Lei was looking at Long Xingyun, and Long Xingyun was also looking at him. After a while, he spoke: "Officer Zhang, I called you here this time, in fact, I have a few questions I want to ask you. ”

"But it doesn't hurt to say it." Zhang Lei said with a smile. Regardless of whether Long Xingyun is young or not, he is a criminal investigation expert after all, and befriending the other party is only good for himself, and there is no harm. If Zhang Lei knew that Long Xingyun, a criminal investigation expert, only had the name a few hours ago, I don't know if he would think so.

"I heard that Officer Zhang was the first criminal police officer to arrive at the scene, I wonder if the scene had been destroyed before Officer Zhang arrived at the scene?" As he spoke, Long Xingyun's eyes stared at Zhang Lei tightly.

Regarding Long Xingyun's question, Zhang Lei did not hide it, and said calmly: "The scene was not destroyed, but because it was a person next to him who called him, he ignored it, and that person pushed him." But who knows, he fell. Upon examination, he was not breathing. ”

"That's right," Long Xingyun couldn't help but tap his index finger on the table, and was silent for a while before he said slowly, "Has the person who called him ever interrogated?" Is there any suspicion? Why did you call him to know? ”

"Well, he also said this," Zhang Lei nodded, "It's because he saw the deceased's things fall to the ground, so he called the deceased, wanting the deceased to pick up the things." But the deceased was no longer breathing, so he could not answer him. Because the deceased still had some residual smell of alcohol on his body, he thought that the deceased was asleep, so he pushed him. ”

Hearing Zhang Lei's words, Long Xingyun could basically rule out the suspicion that that person was the murderer. This kind of thing is very common in train stations, and it is not a peculiar thing. However, what makes people wonder is why Wu Dongdong doesn't have much alcohol on his body at this time