"Yes, when the deceased only had one knife wound on his body, I must want to know whether the culprit who made Xiao Se and Xiao Yao 'unconscious' came from here." Yan Guanghai's gaze was instantly sharp.

"I see, Miss Elizabeth, Fang Yao. Let's work with Yan Guanghai and start looking for drugs that may make you unconscious or sleepy. Xu Yueren said.

After a series of careful searches, Xu Yue and Elizabeth found sleeping pills and a strange bottle in the inner corner of the light-proof medicine cabinet, respectively.

"See what this is?" Xu Yueren handed the vial of sleeping pills to Fang Yao.

Fang Yao twisted it lightly with his hand, and the bottle cap opened: "Good guy, someone has already used this bottle of sleeping pills!" ”

Elizabeth said, "Look at this again." ”

Fang Yao wanted to reach out for the medicine bottle that contained the liquid and marked the measurement and chemical formula, but Xu Yueren took the first step to snatch it away: "The liquid in this dark brown bottle looks dangerous, so don't open it at will." ”

Elizabeth said, "Then I'll put it back in that case, but I think it's a little strange how there could be a bottle of liquid medicine and some pill capsules in the same dark cabinet." ”

At this time, Yan Guanghai, who found a small piece of broken gauze on the table containing the electric kettle, stopped Elizabeth and said: "No, someone has used gauze, I suspect that the liquid you mentioned before is very likely to have been used by the murderer with gauze." ”

Fang Yao added: "Yes, especially when everyone is not injured today, it is impossible for the clinic's gauze to be used to bandage!" ”

Xu Yueren said: "I understand, now go to Zhang Huixin and ask her to come and have a look." ”

......

Although Xiao Se's bones were not cold, the murderous part of the "darkness" had already passed, and Zhang Huixin was also a little relaxed, and after dinner, he followed Xu Yueren.

"I'll look at the medicine bottle you said." She gets straight to the point.

Elizabeth took the dark-colored medicine bottle containing the liquid to Zhang Huixin again.

"Well, this is high purity**, 15 ml capacity." After Zhang Huixin saw the only chemical formula posted in the medicine bottle, he weighed it in the palm of his hand and judged.

Fang Yao suddenly understood:

I see! This is how the murderer made Xiao Se "lose resistance"! If you limit your investigation to a concert hall, you'll never get an answer!

The murderer clearly knew that C4H10O represented ** that could make people unconscious, and used it to kill people, which shows that he has a fairly wide range of knowledge.

The average person simply can't figure this out at once!

"That person", the possibilities are getting bigger and bigger!

Zhang Huixin also cheered up: "Could it be that the murderer used ** to kill Xiao Se?" ”

Fang Yao asked rhetorically: "It can't be me, you don't know the danger of this thing." I have ** in my hand, can I still be countered or even stunned by Xiao Se before he died, as Li Jun said? ”

Elizabeth and Zhang Huixin said in unison: "I know that you are wronged." ”

Zhang Huixin placed the ** bottle in a transparent glass cabinet at a high place, and said to everyone: "I remember that this ** is placed in this high cabinet with a series of liquids such as alcohol and sodium bicarbonate liquid, not in a dark cabinet there." The bottle containing ** itself is protected from light, so there is no need to do it. ”

Xu Yueren said: "With Zhang Huixin's testimony, I think that 'the murderer used **' is an irrefutable fact." ”

Yan Guanghai took the broken gauze and asked, "Tell me, can you cause a coma if you stain the cloth?" ”

Zhang Huixin replied: "It is best to use a handkerchief, ** is a strong volatile, easy to oxidize, and the solubility with water is not good." However, the easiest thing to find in the clinic is gauze, which can cause a coma if it is stained with ** and close contact with the target's mouth and nose. ”

Fang Yao asked, "So if you want to use this, you need to carry a bottle with you and equip it with gauze?" ”

Zhang Huixin nodded: "It's true, it proves that someone has used this thing, so the way to use it must be the same." ”

Fang Yao thought: It was the murderer who used **, which means that Zhao Ting dissolved the sleeping tablets in water and poured the nectar or directly hid the small pills into the nectar.

The purpose of this is to put me to sleep!

Fortunately, he became a "murderer" perfectly in front of everyone's eyes!

After figuring out Zhao Ting's methods, Fang Yao was more confident to win this "seemingly one-sided" vicious battle!

Zhang Huixin spread her hands helplessly: "Alas, since they have all been called here by Xu Yueren, I will follow up on the follow-up investigation." ”

Xu Yueren said, "Yan Guanghai, if there is no need to continue to investigate, let's leave here and go to the biology room." ”

Yan Guanghai smiled knowingly: "Big hacker, you are finally not so sluggish. ”

Xu Yueren also smiled heartily, Fang Yao saw this scene of "knights joining forces", and his sense of security exploded: "Now this princess is invincible~"

......

The three of them left the clinic, walked through the concert hall, and came to the door of the biology room.

There was an inappropriate bead of sweat on Fang Yao's forehead, she stopped and stopped, winking at Yan Guanghai and Xu Yueren beside her from time to time: "Everyone should be careful when you go in, it's terrifying here!" ”

Yan Guanghai frowned, and without saying a word, he directly twisted the doorknob of the biological room!

The corners of Fang Yao's mouth hooked an indescribable arc, and secretly calculated: Zhao Ting will be so careless, really when I lose?

However, she thought that she had the chance to win, and she could let me go to see Lord Yama with grievances. As everyone knows, I not only want to find out the real culprit, but also let everyone see the true face of you Zhao Ting in the referee referendum!

Hmph, Zhao Ting, take it.