Xu Jingnan, who had not rested for a day and a night in TY City, finally found something that he had been in contact with recently in Cao Bao's body, and he extracted the ingredient of ether from Cao Bao's blood that was almost hidden by alcohol. This is already the body of the hallucinogens in the seventh body that Xu Jingnan came into contact with after the coal mine explosion, and he is very sure that the hallucinogens in Cao Bao's blood are the same as those in Wang Mazi's blood, both of them were used ether before their deaths, and they died shortly after.

Li Yiting's waiting was not in vain, Cao Bao's death really had another mystery, from this suspicion alone, Wang Mazi's murder case and Cao Bao's sudden death case are inextricably linked, and the prerequisites for merging the cases are met, but he is not in a hurry to qualify, the first thing at the moment is to return to DT City, because Liu Zichen has already notified himself and found Cao Bao's mother Yan Baoping, who is now in emergency treatment in the local hospital. One of the two main witnesses who concealed the incident is now dead, and he can no longer allow the other to have new problems, so after completing the handover procedures with the local police, he and Wan Yongkun immediately rushed back to the hospital to protect Yan Baoping and prevent anyone from approaching her.

Yan Baoping's body is not in serious trouble, she is just overly sad, so she is out of danger quickly, but her mental condition is very unsatisfactory, sometimes shouting loudly, sometimes crying bitterly, and constantly struggling and convulsing, several times to get up and rush to the outside of the ward. The nurse could only give her a shot of diazepam, which made Yan Baoping relax a little and fall asleep in a daze, while Liu Zichen deeply sympathized with this poor woman and took care of her like a family member the whole time.

"Bao'er, Bao'er......" In the middle of the night, Yan Baoping suddenly screamed again, fortunately, there were only herself and Liu Zichen in her ward, otherwise Baozun would scare other patients.

This is Yan Baoping woke up from her sleep again, and when she woke up, she found that her face was full of tears, her eyes were swollen terribly, and her head was heavy. She knew very well that her son was dead, and in her dreams, Cao Bao waved goodbye to herself repeatedly, and she felt terrible pain in her heart, but she no longer had the strength to cry anymore.

Yan Baoping realized that she had entered the hospital, and the girl sitting next to her seemed to be watching her all the time. Her hand was held hard by this girl, which made her feel a little warmth that she had not seen for a long time, and the heavy psychological burden was finally let go.

Liu Zichen asked with concern, "Eldest sister, are you awake, do you want to drink some water or eat something?"

Yan Baoping shook her head, she didn't feel hungry and thirsty, but she was really tired, but she could slightly feel that this girl cared about her, and it seemed that when she was renting a house, it was the girl on the other side who pounced on her, but at that time, she only had death in her heart.

But now it's different, crying enough and shouting tired, Yan Baoping suddenly realized that she was so stupid, her husband was gone, her son was dead, if she just looked for a short sight, her family would be completely destroyed, not to mention, the grievances of the whole family would not have a day to get Zhaoxue. Since the news of Cao Bao's death came, Yan Baoping was overshadowed by excessive sadness, but now, there is another emotion quietly surging, that is, hatred.

Yan Baoping struggled to crawl and sit up, leaned against the wall behind her, and whispered in a hoarse voice, "Sister, thank you." ”

"You're welcome, as long as you can open some. Liu Zichen responded with a smile, she was very pleased that Yan Baoping could calm down and speak, and she didn't expect her to open her heart so soon.

However, Yan Baoping took the initiative to mention it, and she first asked, "Sister, are you here to investigate the case, or are you from the mine?"

Liu Zichen understood that the other party cared about her identity very much, she did not hide it, told Yan Baoping her true identity, and showed the documents to the other party to ensure that Yan Baoping could trust herself.

"It's okay sister, if you have any questions, just ask me! Don't worry, I won't hide it, I will tell you everything I know, I just hope you can find the murderer of my son as soon as possible!" Yan Baoping has no worries now, money can't shake her anymore, her husband and son are gone, no matter how much money she wants, it is useless to ask for more money, she just wants to avenge her son now, and she also wants to seek justice for her husband and her broken family. She didn't know the girl in front of her, but from saving herself from the rental house to being with her all night in the hospital, Yan Baoping, who was isolated and helpless, was determined to treat the dead horse as a live horse doctor, and pinned all her hopes on Liu Zichen.

Liu Zichen didn't have to ask in such a hurry, because she felt that Yan Baoping's mental state was very bad and she didn't want to let her be stimulated more, but since the other party took the initiative to bring it up, she was naturally willing to learn about the clues earlier, which was also the real situation that Li Yiting and Wan Yongkun wanted to know after working outside for a few days.

Yan Baoping took a small glass of water handed over by Liu Zichen, raised her head and drank it all, and first asked a question, "Sister, my son Cao Bao, how did he die, can you tell me?"

It stands to reason that before the investigation of the case is completed, it is not possible to disclose the inside information to outsiders, but Liu Zichen knows that this is a knot in Yan Baoping's heart, if she doesn't say it, she may not fully cooperate, and after seeking Li Yiting's consent, Liu Zichen told her, "When Cao Bao died, he was found lying on the bed of an express chain hotel, and after our preliminary examination, he died of cardiac arrest caused by excessive drinking." ”

"What?!...... Drinking too much, cardiac arrest, this is absolutely impossible!" Yan Baoping leaned forward excitedly, and her voice was obviously much louder, "My son usually doesn't drink a drop of alcohol, he can't drink at all, and his heart has never had a problem!"

The invisible lesion of the heart is easy to ignore, which Liu Zichen is not sure about, but she was a little surprised that Cao Bao couldn't drink, so she hurriedly asked, "What? What do you mean when you say that Cao Bao didn't drink before his death?

"Yes, he can't drink, he had a strange illness when he was a child, he was severely allergic to alcohol, not only did he get drunk but he also had a rash all over his body, so we didn't give him any drink. Yan Baoping replied truthfully, her face was very anxious, "Sister, do you mean that he really drank to death, so you don't suspect that he was killed?"

"Do you think he was killed by someone? Did he have anything unusual before? According to the current investigation, the police believe that he died accidentally. Liu Zichen deliberately guided her, because no one told Yan Baoping that Cao Bao died of his murder.

"Of course there is, otherwise my son is so decent, how can he die? You say he drank too much, this is impossible, I said, my son can't drink! Someone must have killed him, they must have done it. The more Yan Baoping spoke, the more excited she became, and she almost roared, she thought that Liu Zichen was here to catch the murderer for her son, but it turned out to be an accidental death, she was an ordinary woman, and she didn't know what evidence was, so she just questioned it for the first time.

"Who are they?" Liu Zichen immediately grasped the point.

"I don't care who they are, you have to call the shots for me...... Please......" Yan Baoping was obviously just talking, but her natural reaction was to invisibly reveal some suspicious information, but Liu Zichen did not go to the scene, the details of Cao Bao's death were not particularly clear, and she planned to go back and talk to Li Yiting about it again.

Now, she saw that Yan Baoping actually couldn't say anything, just blurted out by intuition, Liu Zichen told Yan Baoping about the discovery of hallucinogens in Cao Bao's body, and told her that because of the discovery on it, Beiting had linked the cause of Cao Bao's death to the death of Wang Mazi in the previous mining area, so it was already considered as a murder case, Yan Baoping calmed down a lot, said that he accepted such a statement, and was willing to continue to cooperate with the investigation.

Liu Zichen naturally welcomed it, and she didn't detour anymore and said directly, "We want to know two things now, first, where did you place your husband Cao Hongwei's body in you? Second, did your son Cao Bao say anything special or encounter anything before he left home? Do you know the reason why he went to other places?"

Yan Baoping was stunned for a moment, she didn't expect that this seemingly huge secret hidden by herself and the coal mine had already been known by others, and it seemed that this thing that wanted to hide people's eyes was a joke at all: "That's right, my husband died, he died in the gas explosion on the eighth day of the first month, and the mine asked us to take the body away that day, and concealed the situation, and then we went to negotiate and threatened us with a pension not to reveal it, and we had no choice but to help the coal mine hide it." As for Bao'er, he just told me that there was an important matter that had to be dealt with and that he would not be back in a few days, but I don't know exactly what it was. ”

"So where is your husband's body now?" Liu Zichen continued.

"In the ancestral grave of the Cao family, not far behind my house, because he could not be said to be dead, he was not cremated, and was placed in his father's coffin. And I didn't dare to erect a monument, but I made a special mark, and I can take you to find it. Yan Baoping said urgently.

This is the biggest progress that the Beiting Detective Agency has made since the mysterious informant reported the number of deaths in the coal mine on the "Micro Alliance" website, and they will soon be able to obtain the transcript of the human witness in this case, plus the body of the person who was concealed as physical evidence, and only need to go to examine Cao Hongwei's body and confirm that the cause of his death is the same as the five people who died in the coal mine, which is an ironclad fact.

It's just that things have developed to this day, and Beiting's task is not only to conceal such a procedural problem, but the real cause of the explosion, and now there are successive murders, and more inside stories are about to come out. Liu Zichen also wanted to get more information about the explosion from Yan Baoping's mouth, but Yan Baoping said that she knew nothing about the coal mine explosion, and she only received a notice from the mine that her husband had died underground because of the mine accident, and the rest was completely unaware.

When Liu Zichen was thinking about the next course of action, Yan Baoping frankly provided another important information, after knowing that Cao Hongwei's name did not appear in the death list, his son Cao Bao once went to the mine to ask for an explanation, and the person who negotiated with him was the deputy mine manager Xue Kui, who personally handled and persuaded the Cao family to accept the arrangement in the mine, that is to say, Xue Kui knew everything about the handling of this matter, and perhaps knew the ins and outs of the whole matter.