Xu Jingnan spent dozens of hours in the laboratory, and with the joint efforts of local forensic doctors, he finally completed the final autopsy and laboratory examination of Gao Kehua's body, and he could clearly give Gao Kehua's final autopsy report.

Similar to the previous preliminary test results, Gao Kehua did die of hypothermia, and he was frozen to death. But in this autopsy, Xu Jingnan made a major discovery, that is, Gao Kehua was not bitten by a butterfly, and the bite marks on his neck were fake at all!

It was just a small hole caused by a pinhole, and then it was affected by an external force to deliberately create a wound similar to a butterfly bite mark, but after very careful testing, including the extraction of skin tissue at the wound, Xu Jingnan finally confirmed that the wound did not have animal saliva and DNA cells at all, but left a trace of plastic film, according to which it can be confirmed that the wound did not come from the bite of the animal, but was deliberately made.

As for the ether in his body, his mouth should be covered, and then ether was stained on a towel or handkerchief, Gao Kehua breathed inhaled a large amount of hallucinogens, and he was immediately fascinated, so the concentration of ether in his body would be four or five times higher than that of the previous deceased.

At this point, Gao Kehua's death is a suspicion of murder, the evidence is conclusive, and it has been deliberately imitated as the death of Wang Mazi and Cao Bao.

Li Yiting and Chen Tianyu were more excited about this, they had tried their best for the case of Wang Mazi and Cao Bao, but there was still no sufficient evidence to show that the two were murdered, and they were indeed bitten by butterflies, resulting in hallucinations. And Gao Kehua's case, there is finally ironclad evidence of murder, so they can let go of the investigation and don't need to think about miscalculation. Moreover, Xu Jingnan unexpectedly discovered that Gao Kehua was not bitten by a butterfly, and this result made the relationship between the whole series of cases and the Grimace Butterfly a huge question mark, it seems that someone killed someone with the help of the legend of the butterfly elf, then this murderer should be a person in the mine, and he has to know such a legend very well in order to deliberately imitate it so accurately.

Li Yiting just ruled out his suspicion of Qin Xuechuan, and he said his opinion, "Tianyu, it seems that Xue Kui is more suspicious, in the process of coal reselling, he may have had a dispute with Wang Mazi, Cao Hongwei and others, or he has a handle in their hands, so he wants to get rid of them." As for Gao Kehua, not to mention, the two have worked together for a long time, Gao Kehua must know a lot of Xue Kui's black material, and it is more likely to be destroyed. If that's the case, will Zou Qi, who knows that Xue Kui is reselling coal resources, be his next target?"

Chen Tianyu pondered carefully, and he proposed another possibility, "Yiting, your worries are justified, I will immediately inform Xu Jie and ask him to send someone to protect Zou Qi, we really can't spare manpower." As for Xue Kui, he has always been suspicious, but he should be a shrewd guy, knowing that our Beiting is investigating the coal mine explosion case and the serial death case, and he continues to kill people, it seems that he has a feeling of hitting the muzzle of the gun, which is not very logical! It stands to reason that at this time, he is afraid of setting himself on fire, so he should try to hide as much as possible and not cause trouble. ”

"Maybe he's usually arrogant and doesn't take us seriously?" Li Yiting has been in the mine for a long time, and he still knows a little about Xue Kui's reputation, this person's background is said to be very hard, so he has always been arrogant, domineering and arrogant, and the miners are afraid of him.

"This is also a possibility, in short, let Yongkun and them follow first, this time we have to keep an eye on it, and we can't let Xue Kui leave our sight again. However, I do suspect that there is another possibility, Mei Yuanzheng, what do you think?" Chen Tianyu put forward his thoughts.

"Mei Yuanzheng, do you suspect that the mine manager Mei Yuanzheng will be the murderer?" Li Yiting asked rhetorically.

"It's really hard to say, Mei Yuanzheng came to us to surrender and behaved very cooperatively, but I am also worried that he is pretending to be a gesture and avoiding the important and light. After all, the matter of accepting bribes is not big or small, not to mention that he also took the initiative to return the stolen goods, and compared with those cases, the punishment will be much smaller. Chen Tianyu said.

Li Yiting nodded, "Of course, I also doubted him, but there is no problem with what he explained! I deliberately found some other questions to ask him, and there were no loopholes in his answers, if he deliberately concealed the truth, how could he know what we already knew and what we didn't grasp in the future?"

Chen Tianyu really didn't find any suspicions about Mei Yuanzheng, he just felt that this person was too smart, so smart that he easily discovered the identities of Li Yiting and Wan Yongkun, just on this, he was worried, "Okay, the next work will revolve around Xue Kui." Mei Yuanzheng, we can contact and supervise normally, if there is no problem, we can't just suspect others, just like Qin Xuechuan. By the way, is there any new news on Mingyue's side, why did Qin Xuechuan go to Tao Sansheng's house again?"

Li Yiting thought about it, Shen Mingyue did have a new report, "Mingyue said that Qin Xuechuan accompanied Tao E back to see Tao Sansheng, stayed there for a long time, and had lunch together and chatted a lot of gossip. Tao Sansheng had known Qin Xuechuan before, Tao E Middle School and Qin Xuechuan were classmates, and the relationship has always been very good, Mingyue observed that they seemed to have some unusual relationship, but there was no evidence. ”

Chen Tianyu knows that Qin Xuechuan has a family and two sons, with his identity, if he really has an underground relationship with Tao E, he must keep it secret and not let outsiders know. But this is the second time that Qin Xuechuan has been found to have gone to Tao Sansheng's house in person, which seems to be too public, although the mining area is relatively remote and far away from the city, but as a cadre of the Mining Bureau, is he not afraid of being discovered by the people above the coal mine?

Chen Tianyu felt that this person was quite interesting, it seemed that many things were related to Qin Xuechuan, and after checking it, he found that it was not necessarily him. Now, he has repeatedly appeared and come to the mining area, and he has no sense of avoidance, so it is not very clear what kind of thoughts this person has? And Xue Kui, as Qin Xuechuan's close friend, went to his house not to see him, and the things in this are also quite intriguing. It seems that for Mei Yuanzheng and Qin Xuechuan, they still can't relax their investigation, even if they are not involved in the case, they may be able to find more valuable clues from their side.