Regarding Gao Kehua's death in the end, Li Yiting was slightly stunned after getting the autopsy report, he sold a pass and asked everyone, "Can any of you guess what the cause of Gao Kehua's death is?"

At this time, it's not that Li Yiting still has the heart to play, he just wants to liven up the atmosphere, including the lively and active Shen Mingyue, who is very tired these days, and I heard that another one died this morning, and he is still an important suspect, so he is a little listless. In the room of this guest house, there are Chen Tianyu, Liu Zichen, Shen Mingyue, Xu Jingnan, Kuangsuo, plus a total of six people, the room is not big, and they are all covered by the shadow of the case, even in broad daylight, it looks a little depressed.

Liu Zichen ran the most on the periphery, and she spoke first, "Didn't Jing Nan say that there were butterfly bite marks? Then it should be the same as the two previous deceased, under the effect of hallucinogens, they died unexpectedly." ”

"Zichen is really smart, but not very accurate. Li Yiting continued to stare at the others.

"I saw the photos of the scene, could it be that Gao Kehua was suffocated to death on the ground?" Kuang Suo asked casually.

"Haha, this is a bit bizarre!" Li Yiting thinks that this model, when he knows the answer, is quite interesting to ask other members, and moreover, he can also think backwards and see what loopholes exist in everyone's usual reasoning in the absence of evidence?

Shen Mingyue was impatient, and when she walked over, she wanted to grab it, "Brother Li, don't sell it, tell us quickly!"

Li Yiting directly hid the autopsy report behind him, and said mysteriously, "That's not good, Mingyue, or you can also tell me the cause of death, if you can guess it, I'll show it to you." ”

Shen Mingyue glanced at Li Yiting angrily, "Really, if I can guess it, why do I want you to show me?" However, I came up with a possibility, Gao Kehua can easily freeze to death if he wears so few clothes, and outdoors at a few degrees below zero!"

Chen Tianyu and Li Yiting raised their heads at the same time and looked at Shen Mingyue with an approving gaze. In fact, after returning from the scene of the crime, Chen Tianyu had already speculated that no matter what the antecedents were, the possibility of Gao Kehua freezing to death was the greatest.

Sure enough, the autopsy report gave a clear explanation that the cause of Gao Kehua's death was hypothermia, which is what Mingyue said, that he was frozen to death. In the cold late night, Gao Kehua wore thin clothes and lay on the ground outdoors for several hours, causing the body temperature to drop sharply, and finally fell below the safe value for a long time, thus causing irreversible damage to the basic functions of the body.

In addition, blood tests showed that Gao Kehua's body did contain the hallucinogen ether, which was similar to the situation of Wang Mazi and Cao Bao. But after further inspection, the cautious Xu Jingnan still found a difference, that is, the concentration of ether in Gao Kehua's body was much higher than that of all the dead in front of him, and it was five times higher than Cao Bao, the highest concentration among the eight people in front!

Xu Jingnan explained, "Common sense says that any drug has a half-life in the body and is excreted through metabolism. The concentration of the drug generally decreases with time, and at a certain point in time, some are 12 hours, some are 24 hours, and they will be completely discharged. However, once the body dies, the metabolism is quickly stopped, and the remaining components of the drug remain in the body, although the concentration will still gradually decrease, but it will be very slow, and it may not disappear completely until it spoils. Wang Mazi and Cao Bao's autopsies were performed hours to hours after their deaths, which was actually very short, and the concentration of ether detected should be about the same as when they died. And Gao Kehua just now, the test was carried out about three to five hours after his death, although the time is still shorter, but it is still not a huge difference from the situation at the time of death. In other words, if the three of them were to have similar amounts of hallucinogens under the same conditions, the test results should be the same. ”

After listening to the professional explanation, Li Yiting probably understood what Xu Jingnan meant, "Jingnan, are you saying that according to the current autopsy report, Gao Kehua's ether content is so high because he had a very large intake before he died, four or five times more than Wang Mazi and Cao Bao?"

Xu Jingnan nodded and replied affirmatively, "That's right, that's exactly the case! In fact, this is also the concentration needed to stun a person, the concentration of Wang Mazi and Cao Bao before can only make them hallucinate, but they can't lose consciousness immediately." ”

Li Yiting woke up like a dream, the key point turned out to be here, no wonder Xu Jingnan must explain this matter so clearly. The conclusion drawn from the autopsy has actually explained a problem, the consequences of Gao Kehua being bitten by a butterfly are different from Wang Mazi and Cao Bao, although the three of them are all related to the Grimace Butterfly, there are obvious differences.

Wan Yongkun went to Gao Kehua's house with the police and got another important piece of evidence from his wife, that is, the suicide note written by Gao Kehua before leaving the door. Wan Yongkun sent the contents of the suicide note to Li Yiting, and after Li Yiting checked it, he found that these words were just an explanation to his wife, asking her to take care of the children, and apologized deeply. The letter was not long, it was signed, and the time was two o'clock that night.

The key point is not what is written, but that the letter is written very standardly, there are no typos, there is no logical confusion, and it is obviously written in a normal state. That is to say, at two o'clock on the night of the letter, Gao Kehua's consciousness was still very clear and he was not disturbed by hallucinogens, which proved that he was not bitten by the ghost-faced butterfly during his time at home, and everything was normal.

Then, he went out, and outside, he was bitten and then fainted in the alley until he froze to death.

Li Yiting successfully sorted out Gao Kehua's whereabouts, and a question that stayed on the surface was mentioned again, that is, why are there so few clothes worn by this person?

Although Gao Kehua's family did not see the scene when he went out, her wife can prove that the coat, pants, leather boots and hat that Gao Kehua wore the day before were not at home and should have been worn out. So, Gao Kehua walked into the alley with his clothes on, and then was bitten by a ghost-faced butterfly, causing him to be in a trance, so where did his clothes go?

Was it taken off by itself? This is obviously unlikely, and there is no trace of the clothes at the scene, except that it is very cold. Besides, how could there be a grimace butterfly in the city? If there were, it would have been discovered long ago, and no one had ever seen it in the city. If not, how could he have been bitten and had a large concentration of ether in his blood?

These questions are deeply haunted in the minds of everyone in Beiting, Gao Kehua's death is even more bizarre, Chen Tianyu suddenly remembered one thing, he told Xu Jingnan to examine Gao Kehua's body again, especially the neck position.