Speaking of this, Zhu Jinchuan asked Ling Li: "You are studying science, think about it, nitric acid, sulfuric acid, plastic bottles, and Zheng Qijie's major, what can these things be closely related to?" ”

"Wang Shui......" A few seconds later, Ling Li muttered, "Isn't it, these materials he stole were used to dispose of corpses?" ”

"Very likely," Zhu Jinchuan nodded approvingly, "the skin, internal organs, and flesh are easy to handle, but the bones of the human body are so hard that Zheng Qijie is not in a position to chop them with a knife, and his dormitory also shows that there are no traces of blood." Combined with the testimonies of these colleagues, it can be inferred that he took advantage of his work to recover the materials that poured through the purification laboratory and synthesized aqua regia himself. With the materials, he only needs to find a large plastic bucket and soak the bones in it with aqua regia, and it is easy to achieve the purpose of destroying the corpse. ”

Zheng Qijie's usual work is not to collect waste materials for cleaning, or to push garbage cans in and out, he is usually low-key and inconspicuous, and no one will pay attention to him pushing a small cart full of sundries.

Outside the university is the Fujiang River, a tributary of the Yangtze River, the river is narrow and the water is turbulent.

As for an inconspicuous plastic garbage can floating on the surface of the river, where will anyone notice?

In the face of this evidence and police speculation, Zheng Qijie's defense is simple but to the point.

He first admitted that there was such a thing.

Then, he said that although he had stopped doing research for a long time, he still had some nostalgia for chemistry. The management of the laboratory was chaotic, and he couldn't get used to it, but it was useless to suggest lightly, so he simply collected the waste liquid used in the experiment and did some small experiments by himself.

But I was afraid that the school would find out that I had lost my job, so I kept it a secret.

As for where the things ended up, Mr. Cheng said he couldn't remember them.

Ling Li held his cheeks and drooped his eyes: "I can't do my job, the Public Security Bureau must be very aggrieved, no matter what evidence comes, he can take him back as a school handyman, and the result is accurate." But I don't believe that he and the victim don't know each other, how could it be so coincidental that he was present at the critical time, and the laboratory materials he stole so coincidentally could be used to synthesize aqua regia? ”

"That's the truth, where in the world can there be such a coincidence, meet again and again, and know that the victim is selling insurance, and can also meet the victim in the middle of the night. However, you can't convict a criminal suspect on such grounds, as long as there is a reasonable doubt, once it goes to court, it will not stand up to scrutiny. ”

Ling Li spread her hands helplessly, "You can't form a chain of evidence, there is no real hammer, and you can't rule out reasonable doubt." So far, this case really does not meet the standard of prosecution for intentional homicide. ”

Zhu Jinchuan took a sip of tea, raised his eyes and looked at Ling Li: "Then do you know why the public prosecutors and prosecutors are trying to send this person to prison again and again when the evidence is so weak?" ”

Ling Li on the other side shook his head in confusion.

His voice became serious: "At that time, Zheng Qijie was likely to kill more than one person. There are still clues in Tang Aoxue's case, but the other suspected victims may only have DNA left in the refrigerator. Zheng Qijie is very deeply hidden, and victims like Tang Aoxue don't know how many there are. And if this case can't be decided, it will be tantamount to letting the tiger go back to the mountain. ”

Ling Li froze in her heart for no reason: "What? ”

Zhu Jinchuan flipped the stack of materials to the end: "In the defendant's refrigerator, other human DNA was also found. It is initially suspected that this is not the only victim in this case. ”

Ling Li gasped, and rows of small bumps quickly appeared on her arms: "There are other people?" ”

"Yes," Zhu Jinchuan nodded heavily, "In addition to the victim Tang Aoxue, the DNA of at least five people has also been found, and through comparison with the missing persons in recent years, no match has been found." ”

"So how does Zheng Qijie explain these DNA? Did the other DNA find the victim by comparison? Ling Li hurriedly asked. The new situation made her nervous suddenly, and her temples suddenly jumped.

The defendant said that those were also corpses from the autopsy room. The inconspicuous bits he had secretly left behind had also been eaten. ”

This answer made Ling Li can't help but feel sick to her stomach.

not only killed people and dismembered corpses, but also cooked and ate human bodies, if this case is really as Zhu Jinchuan said, the defendant is indeed heinous.

Zhu Jinchuan also said: "The motive for the crime that Zheng Qijie said was that he had pica and always couldn't help but eat corpses. As for why there was Tang Aoxue's stump in the refrigerator two years after the incident, he said that after eating it, he felt that the arm tasted wrong, and he was reluctant to throw it away, so he kept it. ”

As if something flashed through his mind, Ling Li quickly grasped the key thing: "Life experiments have proved that Tang Aoxue's arm was cut off from his body when he was alive!" So he said it didn't taste right. ”

"That's right," Zhu Jinchuan smiled bitterly, "I don't believe that his taste buds can be sensitive to whether the 'ingredients' can be tasted alive." But he even knows this, and he still uses it as a reason to justify, then he knows very well that Tang Aoxue was still alive when he broke his arm, which indirectly shows that the murderer is him from another angle. However, the police and the procuratorate must be very aggrieved when they could not find the crime scene, the tools of the crime, or the irrefutable evidence that the defendant and the victim had been in contact with, and that they knew that the criminal was right in front of them but could not do anything. ”

"And what about the outcome of the interrogation?" Ling Li hurriedly asked.

In fact, she had already expected that since this case was returned for supplementary investigation, it was very likely that Zheng Qijie would not confess.

Being able to calmly dismember, dispose of corpses, and find good justifications for his words and deeds must have a strong psychological quality.

Sure enough, Zhu Jinchuan sighed regretfully: "Don't talk about interrogation, even the lie detector didn't come in handy." This defendant is simply a monster, and he can withstand the methods of criminal investigation. How can this kind of talent, with a high degree of education, be willing to lie dormant in a school that is not very good for five whole years? The case is so strange that the procuratorate has been hesitant to prosecute. This time, I had no choice but to finally enter the procedure, and it was also because the detention time was too long, and the procuratorate couldn't bear it, so I chose to gamble. ”

Ling Li was still thinking about the details of the case just now, and suddenly her eyes lit up, and she said: "Even if it is a body for autopsy in the medical school, there will be a record, since Zheng Qijie said that he ate it all, then it can be combined with the autopsy record to investigate?" ”

"It's gone," Zhu Jinchuan smiled bitterly, "a fire, all burned down." As for the cause of the fire, it happened to be a mistake by Zheng Qijie, and it was exactly a week before he was detained. ”

"How can it be so coincidental?" Ling Li exclaimed.

"Look, you're subconsciously using clever words again." Zhu Jinchuan said, "Where is there such a seamless place? Someone must have deliberately caused this result. ”

Ling Li's mouth grew and she was once again speechless.

She didn't believe that all this was a coincidence, but if everything was deliberately done by the defendant, it only showed that this person was terrible.

It's so scary that you know he did it, but you can't convict him, and it's hard to even prosecute.

His crime is very strict, link by link, slow but not chaotic at all, let everyone know that he did it, but there is nothing to be done.

"Wait!" Ling Li noticed a detail again, and was full of doubts: "Since he is calculating every step in order to escape legal responsibility, why would he let the freezer stand rot so carelessly?" Still in the absence of your own home, let the plumber repair the door? Isn't that putting yourself at risk? ”

Zhu Jinchuan seemed to have an approving look in his eyes: "If I told you again that a month ago, the circuit in his house was frequently short-circuited and tripped, so he found a plumber to repair it, what would you think?" ”

There was a chill behind Ling Li: "In other words, he deliberately let people find out." ”

I wish Jinchuan noncommittal.

After a while, he said: "This case is definitely not as simple as it appears on the surface. Zheng Qijie also hides many secrets. He was very sure that no one would be able to find the rest of Tang Aoxue's body, nor could he find the scene of the first crime, and he was also very sure that there would be no more family members of the victims. In other words, he is quite clear about the identities of the rest of the DNA. There is no crime scene, no tools to commit the crime, no proof that someone died, confessions and physical evidence do not match, and there are other people's DNA that cannot be compared, and it is almost impossible for a judge to make a verdict under the pressure of possible unjust, false and wrongful convictions. To allow such a case to enter the public prosecution procedure, the procuratorate is undoubtedly under tremendous pressure. ”

Ling Li bit her lower lip and was silent, but the doubts and pressure in her eyes were obvious.

Zhu Jinchuan obviously has a thorough understanding of this case, and this is obviously not a day or two of effort, if he wants to borrow the identity of the victim's family's lawyer to make other changes in this case, to achieve that effect, it is obviously easier for him to do it himself.

"Are you wondering why you were asked to take this case?" Zhu Jinchuan's voice was as calm as ever, as if what Ling Li was holding in his hands was an ordinary case that could no longer be ordinary.

Ling Li took a deep breath: "Yes, I don't understand what the victim's lawyer should do, and I don't think I have the ability to do this well." So, can I say no? ”

It is not Ling Li's character to retreat in the face of difficulties, and her reaction comes entirely from the fear that because of her ignorance and ignorance, she will not be able to play her due role and waste the opportunity in vain.

Zhu Jinchuan obviously understood the reason behind Ling Li's words.

He hooked the corners of his mouth and said very softly: "You said this too early, I think you should first meet the client before making a decision." This is the most suitable case for you, the representative of the victim's family, and the most suitable position for you, except for you, no one can convict Zheng Qijie. ”

"Why?" After his explanation, Ling Li became even more confused.

"Generally speaking, criminals always have a motive for committing crimes, either for money, fame or fortune, or to satisfy their perverted desires. In Zheng Qijie's case, he is obviously not for money, fame and fortune, and if he is to satisfy his desire to kill, why choose Tang Aoxue, a target who will cause people to be shocked as soon as he disappears? Moreover, he is obviously hiding it well, why should he deliberately expose himself? ”

Ling Li was stunned, and couldn't help asking: "Yes, for what?" ”

After pondering for a few seconds, Zhu Jinchuan said slowly: "The only reasonable speculation is that Zheng Qijie chose Tang Aoxue, and there must be a reason why he had to choose. And this reason is still a mystery. This mystery may be solved by you. ”

Seeing that Ling Li was getting more and more confused, he rubbed his eyebrows, took out a stack of photos from the drawer, and threw them in front of Ling Li.

"Look, here's the answer."