With the further deepening of the analysis and discussion of the case, we have a more comprehensive image of the murderer.

The two most important points are that the murderer has a strong knowledge of chemical theory and has an absolutely professional chemistry laboratory.

"The chemistry lab is an important clue that can be traced." I nodded earnestly,

"So, will the murderer be a person majoring in chemistry, such as a teacher, or a senior technician in a chemical factory, and then he can go in and out of the chemical laboratory and secretly refine ricin and synthesize phosgene!" Lin Zifan said suddenly.

This is the most apt speculation I have ever heard about the truth of the case.

"I don't think it's possible, because the official management of chemical laboratories is very strict, and the control of all kinds of dangerous goods is also very strict. Every chemical experiment done by any laboratory must be recorded and registered. If hazardous chemicals are involved, they must be reported and reported layer by layer, the dosage of hazardous chemicals is very accurate, and after the chemical experiment is completed, the final destination of these hazardous chemicals must also be carefully reported and managed. Gong Haonan shook his head and said in a deep voice.

I looked at Gong Haonan's somewhat solemn expression and asked seriously: "You mean, the murderer has no way to refine ricin and synthesize phosgene through the official chemical laboratory?" In other words, even if it is refined and synthesized, there is no way to take it out of the chemistry laboratory? ”

Gong Haonan nodded vigorously and said lightly: "At present, this is the case." ”

"Since the murderer has a strong knowledge of chemical theory, will he have a small laboratory of his own?" Li Meng suddenly asked.

"This is indeed very possible. If the murderer wants to kill indiscriminately, then he will definitely produce phosgene and ricin on a large scale, and even other highly toxic items. It is very likely that he will have his own independent laboratory, as in the American drama "Breaking Bad". Lin Zifan said to us seriously.

It is very likely that the killer had his own independent chemical laboratory, so the source of ricin and phosgene was found, that is, in this homicide, the murder weapon has been identified.

Next, there is the very important motive for killing.

"I think it's a case of poisoning with a very strong purpose, just like the murderer poisoned Agen with ricin." Gong Haonan said seriously.

In his heart, he had silently linked the Agen poisoning case with the phosgene poisoning murder case, and was ready to conduct a joint investigation.

"Although both cases were poisoning, Agen's case is a murder by the D-selling organization from the current point of view. So what about the four kids who want to suck laughing Q this time? What do they have to do with the D-selling organization? "Li Meng asked a very critical question.

"I still suspect that there has been a second criminal force in Renxi City today, and this force is completely neutral, that is, this force is disrupting the D product trading market in Renxi City." Xue Hang said in a deep voice.

I looked at Xue Hang and smiled bitterly: "If there is really this second criminal force, it will help our police from the side." He added some highly toxic items to the D variety, so that many people in Renxi City would not dare to take drugs anymore, and it would also make a significant contribution to our digging out of this D group. ”

"It's just that the second criminal force is killing people." Lin Zifan frowned tightly and said in a deep voice.

"You said this second force, could it be an anti-D force?" Li Meng paused, and suddenly came up with a new perspective.

"When you say anti-D forces, you mean that the murderer hates drugs?!" Lin Zifan looked at her in a daze and asked suddenly.

Li Meng nodded vigorously and expressed his opinion: "Otherwise, the murderer's second criminal force will not poison drugs, because in this way, he will only poison D people." ”

After listening to Li Meng, Gong Haonan slapped him suddenly, because Li Meng's inference was completely in line with his idea of merging the two poisoning cases.

"If you say so, everything will make sense, because the second criminal force where the murderer is located hates all people involved in D, whether it is making D, selling D, or sucking D, as long as all D-related personnel are among his poisoning targets." The more Gong Haonan spoke, the more excited he became, and he seemed to have a feeling of enlightenment and enlightenment.

Gong Haonan paused and continued: "This murderer also hates D, and he is using his chemical technology to indiscriminately poison all D-related personnel. Just, right...... This man's intentions are good, but he is using the wrong way, he is using the method of murder and crime to carry out his own goals. ”

"Wait...... How does this behavior feel so familiar to me? I looked at them, frowned, and muttered to myself.

Suddenly, I had a bad premonition, because the murderer in this case looked too much like the old man of our serious crime team.

But this matter is only known to our serious crime team, and Gong Haoran, who is far away in Renxi City in the southwest, obviously does not know about it.

He ignored our thoughts and continued with some excitement: "The murderer is definitely a chemist, and he has a very professional chemistry laboratory, because he also makes sure that he is safe when extracting ricin and synthesizing phosgene. ”

"Although we have a preliminary understanding of the key to this case, from the current point of view, we still cannot let our guard down. The murderer's purpose was to indiscriminately poison and kill people involved in D, so he must have carried out a large-scale poisoning incident. In the worst-case scenario, a large number of D-related personnel will be killed in the near future. Lin Zifan said in a deep voice.

"Let's prepare for both aspects, we still have to screen according to the clues we have so far. The murderer understands chemistry, but his chemical skills are definitely not innate, he must have undergone systematic learning, and he can set up his own laboratory to make poisons, and his education is definitely not low. Li Meng settled down and said to us.

"What do you mean to start with the chemistry department of Renxi University?" I looked at Li Meng and asked seriously.

Li Meng nodded, affirming: "This is not a solution, if the murderer is from the Department of Chemistry, then he is likely to be a graduate student and a teacher who left the job, there are many good students, but such a highly talented student, I'm afraid no one will forget." ”

"It's not going to be the American drama "Breaking Bad", right?" Xue Hang sneered and said lightly.

After formulating the next investigation plan, we started the investigation with the teachers and students of the highly educated chemistry major in Renxi City.

But what I'm thinking about now is the A of the six-pointed star, the Alchemist, the alchemist......