Lu Yao's side finally made progress, and at the same time, Qiao Long's side also made a major discovery, although there was no substantial evidence, but he also saw a middle-height man in jeans and a black sweatshirt that was exactly the same as Lu Yao's description through the impression in the pupils of the Zhou family's father and son after their deaths, and through a short impression, it was shown that the man used a very thin silver wire to directly insert into the heart of the father and son, which was the real cause of the death of the two.

More importantly, he didn't simply kill the Zhou family father and son, because the killing process was short, but after he killed the Zhou family father and son, he squatted next to Zhou Wenhao's body and used some very rare tools to extract part of the body fluids from Zhou Wenhao's body, loaded it into a transparent vessel and took it away.

Qiao Long also has a major discovery, that is, this murderer is very fluent in the whole process of killing, obviously a habitual murderer, but when he extracts body fluids, he seems a little clumsy, after several failed attempts, it took nearly ten minutes to complete the plan to extract body fluids, although the other party's voice can not be heard from those clips, but it can be judged by his body language that when he completes the extraction of body fluids, the whole person is extremely excited, There was a burst of irregular shaking in the body.

Tremendous progress has been made on both sides, and the next step is for Bao Hongying to lead her subordinates to begin to analyze these materials step by step, and then re-examine the bodies of the Zhou family father and son, and finally finalize whether the true cause of death of the Zhou family father and son is consistent with Qiao Long's description.

"Mr. Lu, Mr. Qiao, I am really grateful for your great help this time, if it weren't for your support, we wouldn't have been able to grasp such an important clue so quickly." Bao Hongying's mental state in the office was much better, and she excitedly expressed her gratitude to Lu Yao and Qiao Long, and said: "Mr. Lu, I apologize deeply for the inconvenience we caused you before, and here I solemnly say sorry to you on behalf of the Municipal Bureau, and I hope you understand." ”

"Bao Bureau, what you said is too polite, I didn't do it all to help you, I was also helping myself, now that the matter is over, I think my charges should be completely cleared." Lu Yao also said with a smile and modestly.

"Of course, of course!" Bao Hongying said again and again.

"But there's something I'd like to discuss with you." Lu Yao said with a smile.

"You say, 'Whatever you do, as long as it doesn't violate discipline and principles, what I can do is what I can do.' Bao Hongying nodded and said.

"Although I have cleared my suspicion now, this case has been involved with me after all, I hope you will inform me when you have the result, okay?" Lu Yao looked at Bao Hongying and said.

"That's no problem, I can call the shots personally, don't worry." Bao Hongying didn't want to agree directly.

"Then my friend and I will go back first, waiting for your good news." Lu Yao didn't want to stay here anymore at this time, after all, who likes to stay in the Public Security Bureau if they have nothing to do, the two said hello to Bao Hongying and Dai Zhicheng and left.

Bao Hongying originally said that she would send a car to send Lu Yao and the others back, but she was euphemistically pushed away by Lu Yao, standing in front of the window and looking at Lu Yao and the two who were gradually moving away, Bao Hongying was thoughtful.

After a long time, Bao Hongying set her eyes on her master and said, "Master, do you believe that Mr. Qiao is really just an ordinary person?" ”

"Ordinary people?" Dai Zhicheng asked with a smile, and then continued: "If such people are ordinary people, then what are we people, waste?" ”

"What do you mean?" Bao Hongying knew that Dai Zhicheng must have the same idea as herself, but she still asked.

"Hongying, our master and apprentice have been partners together for almost ten years!" Dai Zhicheng looked at Bao Hongying and asked.

"It's been ten years and five months since I gave you the first day I was a student." Bao Hongying's thoughts were instantly pulled back to the day he had just been admitted to the Huaguo Public Security Academy, and he saw Dai Zhicheng for the first time.

"Not to mention hundreds of major cases that our master and apprentice have worked together to solve, but there are dozens of them, but they have never been so embarrassed as this time, the criminal's modus operandi is so clever that it is unheard of, and I didn't say it just now, in fact, even now, our technical investigation comrades still can't find the fatal pinhole that Mr. Qiao said from the Zhou family's father and son." Dai Zhicheng said with a serious face.

"What, haven't found it yet?" Bao Hongying has been busy not bothering to ask, and when Dai Zhicheng said this at this time, she was also extremely shocked.

Qiao Long said very clearly, the other party used a very thin thing through the skin and inserted it into the heart of the Zhou family's father and son to cause the death of the two, she thought that since this was the case, her own people could easily find the wound through Qiao Long's description, but she didn't expect that even so, they still found nothing.

"Yes, according to Mr. Qiao's description, the murderer left a fatal hole in the heart of the Zhou family's father and son, and left an identical hole on the top of Zhou Wenhao's head, but so far our people can't find those two holes." Dai Zhicheng said solemnly.

"Then why didn't you say it earlier, if this is really the case, their words may not be completely credible, and we can continue to investigate Lu Yao." Bao Hongying whispered.

"Have you ever heard of pupil imaging?" Dai Zhicheng diverted the topic and asked.

"Teacher, I remember you mentioned it to me once when I was still in school, what's wrong, is there a problem?" Bao Hongying didn't know why Dai Zhicheng asked this, and asked suspiciously.

"Pupil imaging. It's just a bold assumption, because the retina is a special part of the structure of the human eyeball, according to common sense, when a person is subjected to major stimulation, it can often leave a deeper trace, the scientific community calls it visual memory, that is, a part of the visual cells record traces of significant impact, but science, science also shows that the human body's cells are reborn very quickly, and these traces tend to disappear in a very short period of time. When Mr. Qiao rushed to the hospital, more than ten disappearances had passed since the death of the Zhou family's father and son, which was not a short period of time, and those visual memories should have disappeared long ago. Dai Zhicheng looked at Bao Hongying's eyes and explained slowly.

"What Qiao Long said can only be seen by himself, and others can't see it at all, that is to say, this is all his side of the story, so according to this reasoning, can we think that what Qiao Long said is not reliable, maybe he is just to help Lu Yao clear his suspicions?" Bao Hongying followed Dai Zhicheng's words and boldly speculated that this speculation also scared her very much.

If that's the case, the case is even more confusing.

"That's not it, I went to check the surveillance with Lu Yao at that time, and the surveillance did show that a man in jeans and a black sweatshirt destroyed the monitoring of the community and entered the unit where the Zhou family was located, and the time when he left was about the same as the time when the Zhou family's father and son died, this should be certain, and more importantly, Qiao Long also had our own comrades on that side, I asked Xiao Gou, and as soon as he came to a conclusion, Qiao Long called as soon as possible, At that time, you and I and Lu Yao were all together, and his description was completely consistent with our findings, and there was no difference at all, and it would not make sense to say that he deliberately concealed it for Lu Yao. Dai Zhicheng said.

"It's incredible." Bao Hongying also understood that what Dai Zhicheng said was true, and she also recalled the bits and pieces of that time little by little.

"If anyone can do pupil imaging, I think they are the only ones who can do it!" Dai Zhicheng suddenly remembered an adult past, and said in a trembling voice.

"Who can do it?" Bao Hong took two steps forward and looked at Dai Zhicheng and asked anxiously.

"Eight years ago, I chatted with an old comrade-in-arms of mine, and he told me one thing, because my comrade-in-arms always laughs and laughs on weekdays, likes to study some foreign science fiction novels, and can even be said to have reached the point of obsession, and sometimes confuses some plots in the novel with the plot in reality, so I didn't care. Dai Zhicheng slowly recalled the scene when he and his comrades were drinking and chatting together.

"Master, who are they?" Bao Hongying was already deeply caught up in Dai Zhicheng's description at this time.

"There is a mysterious army in Huaguo, and there are many capable people among them, and I also occasionally heard about it by chance from an old leader, but I have never been able to further grasp the information about them." Dai Zhicheng said regretfully.

Bao Hongying was silent for a long time, then looked at Dai Zhicheng and said, "Master, then you mean that Qiao Long is very likely to be the person of the mysterious army?" ”

"I'm just guessing." Dai Zhicheng was also silent for a while, before he sighed slowly and said, "Hongying, do you think that the relationship between Lu Yao and Qiao Long is not simple?" ”

"Master, when you say this, I also think it's a little weird, it stands to reason that Qiao Long is older than Lu Yao, it should be Lu Yao who respects Qiao Long, but why do I think the two of them are Qiao Long respecting Lu Yao." Bao Hongying also recalled some details and said: "Moreover, I arranged for someone to privately investigate Lu Yao's identity and background, and found that he was just a child of an ordinary family and did not have a strong background. ”

"You sent someone to check Lu Yao's background?" Dai Zhicheng was completely shocked by Bao Hongying's words, and said with some excitement.

"Yes, ah!" Bao Hongying rarely saw Dai Zhicheng so excited, and stammered.

"Hongying, you are confused, where did you go to the shrewd and capable person before, so many people greeted the hall and the bureau, Qiao Long also respected him, you sent someone to investigate privately, if they were all from that mysterious unit, they might already know about these things about you." Dai Zhicheng looked at Bao Hongying and said with some excitement.

At this moment, Bao Hongying also regretted it a little, she was under too much pressure in the past few days to make such a mistake, how to make up for it at this time?