"That's why you instructed Zhang Guoxiong to kill Liang Zheyan," Xu Lang asked, looking at Zhuo Wei.

Zhuo Wei nodded.

"Do you know how Zhang Guoxiong killed Liang Zheyan?" asked Xu Lang again.

Zhuo Wei raised his head, glanced at Xu Lang, lowered his head again, shook his head, and said, "I don't know." ”

"Did you know that instigating or bribing others to kill people is also a crime?"

A wry smile appeared on Zhuo Wei's face, he first shook his head, then nodded, and said, "I didn't know when I asked Zhang Guoxiong to do this, and I didn't think much about it, but I only figured it out afterwards." ”

"After Zhang Guoxiong told you that he had killed Liang Zheyan, did you go to Box 333 to check it out?" asked Xu Lang.

Zhuo Wei shook his head and said, "I understand Zhang Guoxiong, he has one thing to say, he won't lie, since he said that he has killed Liang Zheyan, then, it must have been killed, since the person is dead, what am I going to do to see a dead person, in case someone sees it, after Liang Zheyan's body is found, I can't say clearly." ”

Hearing Zhuo Wei say this, Xu Lang nodded, and what Zhuo Wei said was reasonable.

"Since after Liang Zheyan's body was discovered, you pointed the finger at Shi Hanxue and others, why did you instigate Zhang Zhiming to continue his business and issue a gag order after he returned, and refused to assist the police in solving the case," Xu Lang asked.

Zhuo Wei raised his head, looked at Xu Lang and said with a wry smile, "What background does Zhang Zhiming have, you should know better than me, at that time, what I wanted was to pull Zhang Zhiming into the water, use Zhang Zhiming's identity and background, and put pressure on your police, it is best to close the case hastily, so that Zhang Guoxiong and I will be safe." ”

"It's as simple as that," Xu Lang squinted at Zhuo Wei.

Zhuo Wei looked at Xu Lang, nodded, and said, "Things are not as complicated as you think, it's that simple." ”

Hearing this, Xu Lang fell into deep thought.

Through the interrogation of Shi Hanxue, Zhang Guoxiong, Zhang Zhiming and Zhuo Wei, many things have basically been connected, and the basic context of Liang Zheyan's case has become smoother.

Liang Zheyan had a total of five fatal wounds on his body, of which the fatal wound on his chest was caused by Shi Hanxue, which was caused by two people who drank too much because of a trivial matter; The fatal wound on the top of Liang Zheyan's head was left by Zhang Guoxiong, and Zhang Guoxiong was bribed and instructed by Zhuo Wei to do this, in order to give an explanation to his sister, and the pinhole on Liang Zheyan's neck was left by Sun Tianhong, in order to get rid of Liang Zheyan and start his life again, so who caused the two fatal injuries on Liang Zheyan's body

Shi Hanxue has no reason to do that, and he doesn't have time to commit the crime, and Zhang Guoxiong doesn't need to do it, since he has already hit Liang Zheyan with a baseball bat, there is no need to mend Liang Zheyan's body, and Sun Tianhong is the most likely to do this, but, according to his confession, he didn't do it either, so who left these two wounds

After Zhang Zhiming returned from Yanjing City, Dynasty KTV continued to operate and issued gag orders to insiders because of Zhuo Wei's instigation, and he had no direct relationship with Liang Zheyan's case.

Many of the previous doubts and unreasonable points have basically been clarified after interrogating these people one after another, and Zhuo Wei has now admitted his crime, so the next step is to investigate whether Sun Tianhong is the real murderer of Liang Zheyan, and who is the person who caused the remaining two fatal injuries on Liang Zheyan's body.

Thinking of this, Xu Lang asked some more details about what happened on the night of March 19 for Zhuo Wei, and then left the public security bureau with Luo Jiayan and returned to CY.

After returning to CY, I saw that Du Ziqiao and they were already in the office area.

After seeing Xu Lang and them come back, Du Ziqiao said, "According to Sun Tianhong's confession, we found those crime tools he discarded in the sewer. ”

"I've found them all," Xu Lang hurriedly asked.

Du Ziqiao nodded and said, "We found the black backpack in a sewer near the Hyatt Grand Hotel, and found several wine bottles and several mobile phones that had been turned off in the backpack. ”

"Where's the thing?" asked Xu Lang.

"Fan Yang has already taken it for inspection."

"What about the syringes?"

The syringe is the evidence that Xu Lang cares about the most, after all, it is the real murder weapon that killed Liang Zheyan.

Du Ziqiao nodded and said, "I also found it, and Fan Yang took it for inspection." ”

Hearing that the murder weapon had been found, Xu Lang immediately breathed a sigh of relief, and then asked, "Has the security captain of the Hyatt Regency Hotel found it?"

"I found it, I have brought it back, Deputy Team Leader Ding is interrogating in the interrogation room."

"Have you confessed?"

Du Ziqiao smiled and said, "When we found him, he was on duty at the hotel, and when he was brought here, he didn't know what was going on. ”

"What about the surveillance video near the back door of Dynasty KTV," Xu Lang asked.

"Lu Xing and Lai Pi have already gone to look for it, and they should be back soon."

Hearing that the investigation was going very smoothly, Xu Lang suddenly exhaled a long breath, according to the current situation, the case is still progressing very smoothly, it seems that as long as the origin of the remaining two fatal injuries on Liang Zheyan's body is clarified, the truth of Liang Zheyan's murder case can be solved.

Du Ziqiao obviously had the same idea as Xu Lang, he looked at Xu Lang, and then at Luo Jiayan who was holding a stack of documents

and asked, "Where have you been?"

"Oh, I went to interrogate Zhuo Wei." Xu Lang said casually.

"What is the result of the interrogation, he explained," Du Ziqiao asked curiously.

Xu Lang nodded and said, "Confess, Zhang Guoxiong didn't lie, it was indeed Zhuo Wei who bought him to kill Liang Zheyan." ”

"Why did Zhuo Wei do this," Du Ziqiao asked curiously.

"To give his sister an explanation."

When Xu Lang spoke, he shook his head helplessly, and after Du Ziqiao listened, he also shook his head helplessly.

While Xu Lang and Du Ziqiao were talking, Ding Haoqiong walked out of the interrogation room and came to Xu Lang and their side.

"How is it," Xu Lang looked at Ding Haoqiong and asked.

"It's all gone."

"Sun Tianhong is telling the truth," Xu Lang asked.

Ding Haoqiong nodded and said, "What Sun Tianhong said is true, on the afternoon of the 20th, he did receive a call from Sun Tianhong, asking him to help turn off the monitoring on the 8th floor, he didn't think much about it, so he helped turn it off, anyway, the owner of the hotel doesn't pay much attention to the monitoring of the hotel, and it's nothing to turn it off for a while." ”

"In this way, it can be determined that Sun Tianhong is the murderer of Zhu Yingyi and He Nanchen" Luo Jiayan asked after hearing this.

Xu Lang shook his head and said, "The words of the hotel security captain are just circumstantial evidence, not direct evidence, let's wait for the inspection results from Fan Yang's side to come out." ”

After Ding Haoqiong and the others listened, they nodded.

After several people were silent for a while, Xu Lang suddenly asked Luo Jiayan, "When will Zhu Jiamei return to China?"

Luo Jiayan thought for a while and said, "According to their company, it will be two days later at the earliest. ”

"Why do you still think that Zhu Jiamei has something to do with Liang Zheyan's death," Du Ziqiao looked at Xu Lang and asked suspiciously.

Xu Lang nodded and said, "Although now that Sun Tianhong has admitted his crime, and several other people have also admitted what they did to Liang Zheyan, the two fatal injuries on Liang Zheyan's body have not yet been determined. ”

"Two fatal wounds, Liang Zheyan's chest, the top of his head and the three fatal wounds on his neck have all been figured out, only the fatal wound on Liang Zheyan's lower body has not been figured out." Ding Haoqiong asked suspiciously.

Xu Lang shook his head and said, "Liang Zheyan has not only four fatal wounds, but five. ”

"Five places"

Hearing this, Ding Haoqiong and the others immediately gasped, they couldn't imagine how many things Liang Zheyan had experienced in the Dynasty KTV that night, and how could he have so many fatal injuries on his body

"In addition, even if we find the murder weapon and other evidence according to Sun Tianhong's confession, it can only prove that Zhu Yingyi and several of them were killed by Sun Tianhong." Xu Lang said again.

"Didn't he kill Liang Zheyan," Du Ziqiao frowned and looked at Xu Lang and asked.

"Liang Zheyan was indeed not killed by Sun Tianhong."

At this moment, Fan Yang walked over with a few documents in his hand and spoke.

"Why," Du Ziqiao asked suspiciously.

"I found a few fingerprints on the wine bottle in the backpack, as well as on the mobile phones of Zhu Yingyi and several of them, through fingerprint comparison, the fingerprints on the wine bottle have Zhu Yingyi and several of them, as well as Sun Tianhong's, and on their mobile phones, in addition to Zhu Yingyi's own fingerprints, there are also Sun Tianhong's fingerprints, in addition, I also found a trace of blood stains on the mobile phone and backpack, which have been sent to Qin Forensic Medicine for testing, and the results should be available soon."

"In this way, the homicide in room 8888 of the Hyatt Regency Hotel was indeed committed by Sun Tianhong," Luo Jiayan asked.

Fan Yang nodded and said, "That's right, in addition to these, I also found a fingerprint on the eight murder weapons left at the scene, and after comparison, it was left by Sun Tianhong." ”

Hearing Fan Yang say this, it can already be determined that Zhu Yingyi and others were killed by Sun Tianhong.

"What about the syringe, is there Sun Tianhong's fingerprint on it?" asked Ding Haoqiong.

Fan Yang nodded and said, "Yes." ”

"In this way, Liang Zheyan was also killed by Sun Tianhong." Luo Jiayan said again.

Du Ziqiao and Ding Haoqiong also looked at Fan Yang.

Fan Yang shook his head and said, "There are indeed blood stains on the syringe, it should be Liang Zheyan's, and there are also Sun Tianhong's fingerprints on the syringe, but in addition to Sun Tianhong's fingerprints, I also found another set of fingerprints." ”

"The other set of fingerprints is not Sun Tianhong's," Xu Lang asked.

Fan Yang shook his head and said, "No." ”

"Is there a result of the fingerprint comparison?" asked Xu Lang.

Fan Yang shook his head and said, "Not yet." ”

Hearing this, Xu Lang was immediately a little disappointed, but it also proved one thing, that is, the syringe was used by someone before Sun Tianhong used it, and that set of fingerprints should have been left by this person, as long as this person is found, then you can know who killed Liang Zheyan.

After Ding Haoqiong heard this result, he frowned, thought for a while, and said, "No, if Liang Zheyan was not killed by Sun Tianhong, then who killed it According to his confession, when he committed the crime, Liang Zheyan was not dead." ”

Hearing Ding Haoqiong say this, Xu Lang also fell into deep thought.

Sun Tianhong's confession made many details of the case very clear, although the time when he committed the crime did not match the exact time of Liang Zheyan's death, but he said that when he committed the crime, Liang Zheyan still had a few convulsions

Next, if Liang Zheyan was already dead when Sun Tianhong committed the crime, why did Liang Zheyan have a convulsive reaction when Sun Tianhong injected air?

The idea of defrauding the corpse appeared in Xu Lang's mind, and Xu Lang immediately vetoed it, as a policeman, he naturally didn't believe in the statement of defrauding the corpse, could it be that Liang Zheyan didn't die when Sun Tianhong committed the crime, but if Liang Zheyan didn't die at that time, why did he die at more than four o'clock in the morning, not more than six o'clock in the morning?

"Liang Zheyan was not killed by Sun Tianhong."

Just when Xu Lang and the others were puzzled by this question, forensic doctor Qin Mingyue came over, looked at Xu Lang and said.

"Just because Sun Tianhong's crime time and Liang Zheyan's death time don't match," Xu Lang said with squinted eyes as he looked at Qin Mingyue.

Qin Mingyue nodded and shook her head, saying, "It's not just this. ”

"Then what else," Xu Lang asked.

"Are you wondering that when Sun Tianhong committed the crime, Liang Zheyan was already dead, why, when he committed the crime, Liang Zheyan's body still had convulsions, right" Qin Mingyue looked at Xu Lang and asked.

Xu Lang glanced at each other and nodded.

"That's because before Sun Tianhong injected air into Liang Zheyan's vein, someone had injected a large amount of air into Liang Zheyan's body, after death, the human body would stop some operation, and the air in his blood would remain in his body, and when Sun Tianhong injected air again, it would cause the movement of air in his body, which would cause his body to have convulsions, in fact, it was not Liang Zheyan's muscle twitches, but a reaction caused by the air in his body reaching a saturation and having no place to discharge."

After listening to Qin Mingyue's explanation, Xu Lang and the others suddenly realized.

This suspicion has been solved, plus Sun Tianhong's crime time and Liang Zheyan's death time do not match, and in addition to Sun Tianhong's fingerprints on the syringe, there is also a set of unfamiliar fingerprints, it can be basically determined that Sun Tianhong is not the real murderer of Liang Zheyan, of course, to completely rule out this point, we still need to wait for Lai Pi and Lu Xing to wait for the results of their investigation of the surveillance video near the Dynasty KTV, as long as the surveillance captures when Sun Tianhong entered the Dynasty KTV and when he left, can know whether Sun Tianhong is the real murderer of Liang Zheyan.

There was a major breakthrough in the case, and the time was in the afternoon, and everyone was busy all morning and had not yet eaten lunch, so a few people ordered a few takeouts.

When the takeaway came, while several people were eating, Xu Lang was thinking about one thing.

What does Zhu Jiamei have to do with Liang Zheyan's case, and who killed Liang Zheyan.

Using intravenous air injection to kill people, this is Xu Lang's first experience, judging from the modus operandi alone, the perpetrator has a certain medical knowledge and a certain understanding of the structure of the human body, according to which it can be inferred that the perpetrator is either a doctor or nurse, or has a certain study of the human body, but, after investigating for so long, all the doctors and nurses who have been in contact with Liang Zheyan have been investigated, and no one has been found to be suspected of committing the crime, who is the one who really killed Liang Zheyan

Zhu Jiamei went to the Dynasty KTV that night to find out what Liang Zheyan was doing, when Liang Zheyan had a conflict with Shi Hanxue, who was he talking to, where was Liang Zheyan's mobile phone now, and who took it away

The other suspicious points of Liang Zheyan's case have been clarified, and now there are only these few doubts left, Shi Hanxue, Zhang Guoxiong, Zhuo Wei and Sun Tianhong have all been arrested and brought to justice, Zhu Jiamei is still in the country, as long as she comes back from abroad, the police will definitely bring her to CY for questioning as soon as possible, but now the person who really killed Liang Zheyan still doesn't know who it is.

Xu Lang was thinking about these doubts while eating.

Just after Xu Lang finished eating, Lu Xing and the others came back from outside.

As soon as Lu Xing came back, he shouted loudly, "Major discovery, major discovery, guess what we found"

Xu Lang, who was originally thinking about the case, heard Lu Xing shouting like this, and they all looked at Lu Xing with idiot eyes.

Lu Xing was a little embarrassed by Xu Lang.

Xu Lang looked at Lu Xing and asked, "Say, what are the major discoveries?" ”

Lu Xing held a USB flash drive in his hand, walked to his workstation, plugged the USB flash drive into the computer, and said while tapping the keyboard with both hands, "You will know after watching this surveillance video." ”

While Lu Xing was talking, a surveillance screen appeared on the big screen in the CY office area, and Xu Lang and the others also turned their heads and looked at the big screen.

Lu Xing pressed the play button, and the video slowly began to play.

The angle of the video shooting is facing the road,Only the corner of the video can be photographed at the back door of the Dynasty KTV,The quality of the video picture is a little poor,One is the problem of monitoring equipment,On the other hand, it is the environmental problem of shooting,Because it is night,The light is not good,So the shooting is relatively dim。

After about five minutes of playback, Lu Xing suddenly pressed the pause button, looked at Xu Lang and asked, "Have you seen it?"

The people who were watching the video were a little puzzled by Lu Xing's question, and Du Ziqiao asked suspiciously, "What did you see?"

"The people in the video." Lu Xing manipulated the mouse and pointed to the lower right corner of the screen and said.

Xu Lang looked at the position pointed by the mouse, and sure enough, he saw a figure in the lower right corner of the video, and after seeing this figure, Xu Lang suddenly frowned, because this person was not Sun Tianhong, but another strange man.

"Who is he?"