"You said Yang Lixin was probably the murderer? Have you found any new clues?" Ma Jun asked.

"I just called the hospital to confirm some things." He Jiahui paused and then said: "Actually, there is a key point in this case that we have never paid attention to."

"What's the key point?" Ma Jun asked.

"Sevoflurane!" He Jiahui continued: "Sevoflurane has been detected in every deceased person, but we seem to have never paid attention to the source of sevoflurane in the deceased's body."

Ma Jun explained: "It's not that we didn't pay attention. We checked and found no results. Sevoflurane is a very common inhaled anesthetic that can give people general anesthesia.

Although this substance is a controlled drug, it is so common that those who sell drugs on the illegal black market have this kind of substance in their hands, so we have no way to determine the source."

He Jiahui smiled slightly and said: "I just asked the doctor at the hospital. In the past few years, sevoflurane was indeed often used, but in recent years, our hospitals in Xiangjiang have basically no longer used sevoflurane.

Alkane.

Because the adverse reaction rate of sevoflurane is very high, and there are some serious adverse reactions, such as malignant hyperthermia, which can lead to acute renal failure, and arrhythmia, which can lead to ventricular fibrillation and cardiac arrest.

These adverse reactions can put patients’ lives in danger, so hospitals have switched to safer anesthetics. But pet hospitals that treat pets still use sevoflurane!”

"Pet hospital? Yang Lixin's father runs a pet hospital! In other words, Yang Lixin has channels to obtain sevoflurane." Ma Jun immediately connected the two things.

He Jiahui nodded and continued: "There are more suspicions about Yang Lixin. He is one of the eight suspects who were investigated at the death scene of the deceased Liu Baorui.

In addition, wheel marks were found near the pond where the fourth victim, Cai Zhixiang, died. They were suspected to be left by tools used to transport the victims. This was also the basis for my suspicion of him. I remember you said at the time, that

The tool seems to be a suitcase, right?"

Ma Jun nodded: "What is the connection between the suitcase and Yang Lixin?"

"Think about it, who is pushing a suitcase without being suspected?" He Jiahui asked.

"Tourists? Or freshmen? In the past, salesmen who came to sell products door-to-door would also bring a suitcase, but that kind of industry has disappeared now!" Ma Jun said.

"You have missed one kind of person, and that is the lawyer!" He Jiahui said.

Ma Jun thought about it carefully and realized that it was true. Suitcases are an indispensable tool for lawyers. Sometimes one suitcase is not enough and two or three are needed.

Lawyers have to carry a large amount of files when litigating. On Xiangjiang Street, if you see a person with a well-tailored suit and pushing a large suitcase, he is probably a lawyer. Many well-known barristers are responsible for filing cases.

There are several suitcase masters and juniors.

He Jiahui continued: "Yang Lixin is a graduate student in the law department. It is natural for him to carry a suitcase with various legal documents and files. No one will doubt him. And he can also send this luggage

box to transport the victim."

Ma Jun nodded suddenly.

He Jiahui continued: "We can review the entire case again. The way the first three victims died allowed us to infer that the murderer was using the Five Elements method to kill.

Then we found Zhang Xingjie through Professor Wei. Then we found the third victim's mobile phone in the garbage dump where Zhang Xingjie lived, so we determined that Zhang Xingjie was the murderer.

But what if Zhang Xingjie was framed by the real murderer? The real murderer knew that Zhang Xingjie was interested in the Five Elements, so he used the Five Elements technique to kill the first two people, and when he killed the third person, he deliberately led Zhang Xingjie to the crime scene.

When we started to record the confession of the suspect, the murderer deliberately blurred the time of Zhang Xingjie's departure in the confession to make us suspicious of Zhang Xingjie, and then placed the third victim's mobile phone in a garbage dump near Zhang Xingjie's home to guide us

Go check on Zhang Xingjie!"

"According to your inference, coupled with the suitcase and the ability to obtain sevoflurane, this Yang Lixin is really suspicious." Ma Jun paused and then said: "But these are just inferences, we still need

evidence."

"If the suitcase is really a tool for transporting victims, then there may be traces left in the suitcase." He Jiahui said.

"I understand. I will immediately apply for a search warrant and let forensics search Yang Lixin's suitcase." Ma Jun said.

He Jiahui continued: "In addition, we need to send people to keep an eye on Yang Lixin. I think he will commit crimes soon."

"Why do you have this judgment?" Ma Jun asked.

He Jiahui said: "Gold, wood, water, fire and earth, there are only four victims now, and it is obviously premeditated. The murderer should have a fifth target.

There was a gap of three weeks between the first two victims, about two weeks between the third victim and the second victim, but there was only a gap of four days between the fourth victim.

This shows that the murderer is accelerating the crime. I think the murderer must have felt that we were about to find him, so he accelerated the crime.

If Zhang Xingjie was really framed by the murderer, then according to the murderer's plan, our eyes would be drawn to Zhang Xingjie and ignore him.

But the murderer certainly did not expect that Zhang Xingjie was hospitalized with acute appendicitis on the night of the crime, which effectively eliminated Zhang Xingjie as a suspect in the case.

Then the murderer will realize that his frame-up plan has failed, and he will definitely speed up the crime at this time. Maybe tonight, the murderer will commit the crime for the fifth time!"

"I understand." Ma Jun nodded: "I'll send someone immediately to keep an eye on Yang Lixin! It's best to catch him in action."

…

When it was time to get off work, Ma Jun came to He Jiahui's office again with a solemn expression.

"Yang Lixin is missing!" Ma Jun said.

"What do you mean by missing?" He Jiahui asked.

Ma Jun replied helplessly: "We went to the school and Yang Lixin's home respectively, but we couldn't find Yang Lixin. So we asked Yang Lixin's parents, and they said that Yang Lixin had packed some luggage and said that he had recently packed some luggage.

I won't go home for two days.

The reason given by Yang Lixin was that his mentor gave him the opportunity to participate in a big case. In order to perform well and keep the case confidential, he temporarily lived outside.

We went to the school again and found Yang Lixin’s tutor. The tutor told us that there was no big case. Moreover, Yang Lixin said that he had something to do at home and asked the tutor for three days’ leave.”

"Did he run away or hide?" He Jiahui frowned slightly, and then asked: "Have you found Yang Lixin's suitcase?"

"When Yang Lixin left, he took his suitcase with him. So there was no way to search the suitcase for evidence," Ma Jun said.

"When did Yang Lixin ask for leave?" He Jiahui asked again.

"According to his tutor, Yang Lixin asked for leave from him the afternoon before yesterday, and his parents told us that Yang Lixin packed his bags and left home yesterday morning," Ma Jun said.

"Oops, he brought a suitcase, and he is probably going to attack the fifth target!" He Jiahui took a breath of air and continued:

"He took three days off. Yesterday was the first day, today is the second day, and tomorrow will be the third day. These three days should be the time when he wants to take action."

"If this is the case, we must find him as soon as possible! But we have no conclusive evidence that he is the murderer, so we cannot apply for a wanted order!" Ma Jun said.

At this moment, there was a knock on the door, and a middle-aged man pushed the door open and came in.

"Sir Ma, I heard Uncle Hua say, you are here! I really got you here!" the man said.

"It's Sir Ye!" Ma Jun immediately introduced: "This is Sir Ye from the Missing Persons Investigation Division. Sir Ye, this is Sir He from the Special Support Team of our Crime Unit."

After introducing each other, Ma Jun asked: "Sir Ye, do you have anything to do with me?"

"We received a report that a woman was missing. Later we found out that she had been kidnapped. According to our investigation, Sir Ma had gone to find the missing person a few days ago, so we wanted to come and ask about the situation.

"Fortunately, you haven't gotten off work yet and I blocked you! If I had come a little later, I wouldn't have been able to find you." Sir Ye said.

"I'm also busy with cases here, how can I get off work on time?" Ma Jun said.

"Is it still the serial murder case?" Ye Sir asked.

Ma Jun nodded: "Four people have been killed."

"Okay, then I won't waste your time and tell you the details of my case." Sir Ye continued: "The missing woman's name is Wang Wanjun. Does Sir Ma remember her?"

"Wang Wanjun? I have no impression." Ma Jun shook his head, thinking that this name is really unfashionable.

The name Wanjun has a very good meaning, but in the eyes of Xiangjiang people, it is a very rustic name.

Sir Ye then reminded: "Wang Wanjun is the person in charge of the Friends of the Ocean organization. According to the staff of the Friends of the Ocean, you went to see her two days ago. Sir Ma, please think about it carefully."

"Are you talking about Serena?" Ma Jun reacted immediately.

Sir Ye nodded: "Yes, her English name is Serena!"

"No wonder I only used my English name during the introduction. It turns out that the Chinese name is so tacky, I'm embarrassed to say it!" Ma Jun thought to himself, and then said:

"A few days ago, we went to see Serena about the serial murder case we were investigating. The Friends of the Sea organization has business dealings with the student union where the deceased was located. Friends of the Sea once sponsored the activities of the student union, so we

So I went to Serena and asked about the relevant matters."

"I see, that means Wang Wanjun is not involved in any criminal case." Ye Sir nodded.

"Are you worried that Serena was involved in a criminal case and was kidnapped by enemies or gangsters, so you came to me to confirm the situation?"

Ma Jun then introduced: "The people who contacted Serena in the student union are the deceased in our case. Even if they had a grudge against Serena, they couldn't kidnap her."

"In that case, I would like to thank Sir Ma, and I will take my leave first." Ye Sir said.

"Sir Ye, please wait a moment!" He Jiahui suddenly stopped Sir Ye, and then asked: "Sir Ye, how do you know that Serena was kidnapped?"

Everyone is a policeman, and Sir Ye did not hide it, but answered directly: "After receiving the report, we found Wang Wanjun's car in an underground garage through the positioning system in the car. Then we checked the surveillance of the underground garage.

After watching the video, it was discovered that it was a man who knocked Wang Wanjun unconscious and then kidnapped him!"

"You mean dizzy?" He Jiahui said and winked at Ma Jun.

Ma Jun understood immediately and said immediately: "Sir Ye, can you show us the video of the underground garage? This may be related to our case."

The Missing Persons Investigation Division did not dare to block the case of the Major Crime Team, so Sir Ye immediately nodded: "Okay, follow me back to the office, and I will show it to you!"

…

In the surveillance video, as soon as Serena walked to her car, a tightly wrapped man suddenly rushed out, covered Serena's mouth with something, and knocked Serena unconscious.

Then the man pushed a suitcase over and put Serena into the suitcase. Then he pushed the suitcase and walked to the blind corner of the surveillance camera, and did not appear again.
To be continued...