is just a friend relationship with Zhou Qing, Shao Donghao has specially investigated whether Wu Baiqi and Wang Lei have deep feelings for Zhou Qing, but after Shao Dong's investigation of the roommates of the two people, it was found that these two people actually want to see if Zhou Qing is willing to find a boyfriend now, not that they have deep feelings for Zhou Qing, but that Zhou Qing looks good and has a good personality, and is suitable for being a girlfriend.

In this case, there should not be a deep contradiction, after all, Wang Lei and Wu Baiqi look normal, and they don't look like some perverted murderers or something.

And at that time, I saw the surveillance video in the taxi, and after repeated observation, I didn't find anything suspicious, and the three people slept in the dark along the way, perhaps because of the all-night relationship last night, the three people were in a very bad spirit.

Wang Lei regretted it very much at that time, feeling that if he didn't go to eat that meal with Wu Baiqi or Zhou Qing would not be able to die.

Shao Dong has been observing Wang Lei's expression, as well as Wu Baiqi's expression, and feels that the performance of the two of them is very normal, and there is no deliberate situation.

Now neither of them can leave City C for the time being, but for now, as long as there is no ghost in their hearts, it is absolutely impossible to leave City C now.

After that, Wang Yihai determined that this was a strong poison, and the onset time was relatively short, it should be within ten minutes and twenty minutes, originally according to Wang Yihai, the two of them should be the most likely to be poisoned, but now he saw that Zhou Qing did not take the usual path at all, and returned to the dormitory fifteen minutes early.

Within fifteen minutes, it is entirely possible that something will happen, maybe after Zhou Qing went upstairs, some uninvited guests came to the dormitory, and after the person who had a conflict with Zhou Qing came to the dormitory, he gave Zhou Qing something, and after Zhou Qing drank or ate it, he was poisoned.

Just when Shao Dong was contemplating the process of this matter, Wang Yihai hurriedly walked out of the forensic examination room, still holding a document in his hand, and saw Shao Dong sitting on a chair thinking, first patted Shao Dong's shoulder, and then handed the document in his hand to Shao Dong.

After Shao Dong took the document, he was refreshed by a few eye-catching big words, carbon tetroxide concentrate poisoning.

Shao Dong raised his eyes and looked at Wang Yihai: "This is the result of your last research?"

Wang Yihai nodded, pulled over the chair next to him and sat next to Shao Dong, at this time Zhang Hao and Wang Bo both came over and looked at Wang Yihai with a serious face, all the previous investigations lacked the most critical point, that is, it had not been determined before, what kind of poison Zhou Qing had been poisoned.

Seeing that Wang Yihai finally walked out with the report, everyone looked at Wang Yihai with curiosity, Wang Yihai frowned and said: "The concentrate of carbon tetroxide, a colorless, volatile, and non-flammable liquid. It has a slightly sweet smell of chloroform and has a pleasant odor, slightly soluble in water, and can be miscible with ethanol, ether, chloroform and petroleum ether.

After this kind of thing enters the human body, it will cause kidney failure and liver dysfunction, I watched Zhou Qing's body reaction, and the effect caused by carbon tetroxide is the same, this carbon tetroxide concentrate, I tested it before, obviously ten times the amount!

Drinking it like this will definitely kill you, because it was not known that it was caused by carbon tetroxide concentrate, so fundamentally the doctor could not make the corresponding treatment, delaying the best time for treatment, if you knew from the first that it was carbon tetroxide concentrate poisoning.

Maybe Zhou Qing still has a glimmer of life, but the world is impermanent, and the murderer can do this kind of poison, so he shouldn't plan to let Zhou Qing live. Wang Yihai said with great regret.

Shao Dong frowned: "Is the concentrate of carbon 4 oxide available on the market, and is there such a thing in the laboratory of C University?"

This kind of thing can only be used in experiments when you hear it, and you can't touch it at all in ordinary life, that is, in the laboratory of the school or in the hospital.

Wang Yihai nodded and said: "This kind of thing, it is generally not bought, but there is it on the black market, if this kind of thing is regarded as poison, it is really accurate, and if the current technology does not know what it is, it will not be able to save the patient's life in a short time."

At least I dissected the corpse before, and found the amount of poison, I simply wanted Zhou Qing to die, I think this person should hate Zhou Qing the most. ”

After a few people heard Wang Yihai's words, you look at me, I look at you, and no one made a summary statement for a while.

Wang Yihai said in surprise: "Don't tell me, you haven't found any key things until now?"

Shao Dong smiled bitterly: "We can find out now that this poisoning case may have been carried out in the dormitory, and Zhou Qing entered the dormitory fifteen minutes earlier than expected, but we don't know under what circumstances Zhou Qing was poisoned."

Whether it was after Zhou Qing returned to the dormitory, someone came into their dormitory, or whether Zhou Qing was poisoned after drinking or eating his own things, it is still inconclusive. ”

Wang Yihai turned over the document he had given to Chen Mo before, pointed to the water cup printed on it and said: "This is the picture I took before, this water cup is Zhou Qing's water cup, and there is nothing about carbon tetroxide concentrate extracted from this water cup."

Originally, I thought that Zhou Qing didn't die after drinking water, but I have obsessive-compulsive disorder and like to check everything from beginning to end.

You should thank me for this obsessive-compulsive disorder, otherwise this case may be in trouble, I found out after a thorough examination that the last fingerprint left on this water cup was not Zhou Qing's, but Qi Ruyue's.

And I found out that the water cup should have been cleaned before being brought to the criminal investigation team, what does this mean? Why did Qi Ruyue clean Zhou Qing's water cup? The last fingerprint left behind was Qi Ruyue's and not Zhou Qing's!"

Shao Dong was instantly woken up by Wang Yihai, and remembered the two people that Wang Lei had emphasized before, one was Zhang Shengnan, and the other was Qi Ruyue, and the two of them had a deep grudge against Zhou Qing.

Although Zhang Shengnan said that he had the heart to harm people, he did not have the intention of killing, but fortunately, in the end, Zhang Miao did not plan to trouble Zhou Qing at all, which led to a farce, Zhang Shengnan's suspicion was ruled out, isn't there another Zhou Qing.

After inspection, it was found that Qi Ruyue's fingerprints were found on Zhou Qing's water cup, but Zhou Qing's fingerprints were not found, which is easily reminiscent of a problem, this water cup should have been cleaned after Du Xueman left, and the person who cleaned it was Qi Ruyue, but Qi Ruyue didn't expect that she would leave fingerprints at all, thinking that all the evidence had been destroyed by her.

Shao Dong can take people to C University to formally arrest Qi Ruyue, this time he went with a certificate, when Qi Ruyue was handcuffed, the whole person was still blind, and the police were waiting outside in class, Qi Ruyue's face was blue and white for a while, and she didn't ask anything or explain anything, because of Zhou Qing's death, there were only Du Xueman and Qi Ruyue left in the dormitory.

Although Twilight Xueman didn't want to see Qi Ruyue in her heart, she had no choice but to eat with Qi Ruyue and go to class or something, seeing that the police took Qi Ruyue away directly, only Twilight Xueman stupidly went up and stopped Shao Dong.

Twilight Xueman knows Shao Dong, when investigating the security check before, Twilight Xueman met with Shao Dong and said a lot of questions, at that time Twilight Xueman kept crying, because Zhou Qing is her best friend, the two are more compatible, the key is that Zhou Qing is righteous, and he stands out for her every time, and the two of them are like relatives together.

Zhou Qing didn't go out with Twilight Xueman before, also because she felt that Twilight Xueman was not suitable for that kind of debauched life, a clean and simple life was suitable for Twilight Xueman's tone, and Twilight Xueman was also very grateful for Zhou Qing's good intentions, and the two of them were like biological sisters.

But Zhou Qing was killed by someone, before Twilight Xueman called Shao Dong more than once to inquire about the progress of this matter, Twilight Xueman wanted to know who was ruthless to Zhou Qing, although Zhou Qing said that he usually had a little temper, but he was also a person with three views of the most upright, Twilight Xue Man didn't understand, who would offend someone like Zhou Qing.

"Officer Shao, Officer Shao, you arrested Qi Ruyue, it won't be because Qi Ruyue is a murderer. Twilight Xue Man grabbed Shao Dong's arm and didn't let go.

Shao Dong glanced at Twilight Xue Man deeply, and saw Twilight Xue Man's tears slowly overflowing: "I just want to know if it is, in fact, I also doubted it, but I can't find it in my brain, please tell me." ”

Shao Dong sighed helplessly: "The situation is not too sure now, we arrested Qi Ruyue because we want to further confirm whether this matter is directly related to Qi Ruyue, and I will inform you when the situation is confirmed." ”

Twilight wiped the tears from the corners of her eyes and rushed to Qi Ruyue, Qi Ruyue had no expression on her face, she could only see from her pale face that Qi Ruyue was in a very bad mood at this time, and Twilight Xueman's voice was mixed with the coldness of December: "You tell me! Have you ever done it?"

Qi Ruyue didn't speak, and she didn't even look at Du Xue anymore, Du Xue ignored the obstruction of the police around her, and reached out to grab Qi Ruyue's clothes: "You tell me if you killed someone? Why? You tell me why? It's obviously you! Obviously, we were so good to you at the beginning, but now your fate is not your own doing, who do you complain about, why do you want to kill her? You give me death! You give me death!"

Qi Ruyue was dragged to the corner of her clothes, and there seemed to be a surge of anger in her heart, and she struggled to break free from the shackles of Twilight Xueman: "You take care of me! I don't need you to care, you are all fake compassion, you are the annoying people, I didn't do anything wrong, you deserve to die!"