The next morning, Noriko went to work as usual, because he lived relatively close. He walked into the office, and he didn't expect someone to come before him.

"Senior Brother Zheng is early." Noriko greeted with a smile.

Although Zheng Mingyuan was in the same class as him, he was older than him before he came to the institute, so Ji Ziyue always called him a senior brother.

Although Zheng Mingyuan didn't like Ji Ziyue a little, he had been doing a good job on the surface, but he seemed to be a little absent-minded today, and he didn't even react when Ji Ziyue greeted him.

Ji Ziyue looked at him in a daze, walked over and said again: "Senior Brother Zheng? ”

Zheng Mingyuan reacted suddenly: "Huh? What's wrong? ”

Ji Ziyue smiled and said, "It's okay, I just saw that my senior brother seemed to be distracted." Senior brother is not feeling well. If you don't feel well, take a leave of absence. ”

Zheng Mingyuan stood up and said, "Yes, I'm not feeling well. After saying that, he turned around and left.

Noriko looked at his back, and an unknown glint flashed in his eyes.

Because it is not allowed to bring his own mobile phone in the research institute, Zheng Mingyuan first went to get his mobile phone and called Zhou Jie to ask for leave.

Zhou Jie heard that Zheng Mingyuan said that he was not feeling well, but he did not suspect it. Zheng Mingyuan has been his student for five years and has always been very diligent. Zhou Jie cared about him for a few words and let him go.

Not long after Zheng Mingyuan left the institute, Ji Ziyue asked for leave and went out. He looked at Zheng Mingyuan's car on the road, took out his mobile phone and called Shen Zezhi, and then he blocked the car and followed Zheng Mingyuan's car.

Shen Zezhi went out immediately after receiving Ji Ziyue's call.

Shen Zezhi went to Zheng Mingyuan's house yesterday. In fact, Shen Zezhi suspected Wu Weijie at first. But it was also because Wu Weijie was too suspicious that he finally turned the object of surveillance into Zheng Mingyuan.

According to Shen Zezhi's reasoning, there are only two people who are most likely to leak secrets in that plan, Wu Weijie and Zheng Mingyuan. He opened a room opposite Mr. Zheng's rented house and monitored him with a remote camera monitor. Ji Ziyue went to the graduate school and became a student of Wu Weijie.

As a result, his hunch was not wrong, and it was Zheng Mingyuan who had the problem. On the day of Zhang Zhiheng's accident, the secretary asked Zhang Zhiheng to come to the institute to sign the documents for Dr. Chen's purchase of instruments. At that time, when she called, there were two other people in the office besides him, Yang Bo and the worker who repaired the air conditioner.

Shen Zezhi checked the worker who repaired the air conditioner, Zhang Zhiheng was already dead when he left the institute that day, and he was inspected when he entered the institute, and he did not have any communication tools on him. In other words, he had no way to contact the outside world before he left the institute. Secondly, this person is an ordinary worker, and he has not been in contact with anyone who is unidentified or suspected.

In this way, the air conditioner maintenance worker was excluded, and Yang Bo, who worked overtime to apply for the instrument, was left. Shen Zezhi asked He Lang to check Yang Bo's low, he himself has no problem, he can't be a member of the spy organization. But Zhang Zhiheng's visit to the institute was revealed by him. He Lang checked all the calls made by the phone on Yang Bo's desk that day, and one call was made to Zheng Mingyuan's mobile phone. Yang Bo and Zheng Mingyuan graduated from the same university, Yang Bo is a few years younger than Zheng Mingyuan, and is Zheng Mingyuan's younger brother. And according to Ji Ziyue's observation, Zheng Mingyuan usually takes good care of Yang Bo. Yang Bo called Zheng Mingyuan exactly an hour before Zhang Zhiheng's accident.

In this way, everything pointed to Zheng Mingyuan, but what made Shen Zezhi unsure was Zheng Mingyuan's motive for doing this. Why would he do that?

Of course, it is not certain that Zheng Mingyuan is the one who killed Zhang Zhiheng based on inference, and after Shen Zezhi told He Lang the inference, He Lang immediately called up the surveillance video of the community where Zhang Zhiheng lived and the nearby road intersection on the day of Zhang Zhiheng's accident. Zheng Mingyuan was found in the video. That's why Shen Zezhi went to Zheng Mingyuan's house. There is also that when Shen Zezhi went to the research institute to find Zhang Zhiheng on the day of the accident, the people in the research institute learned about the situation, and when he asked Yang Bo, Shen Zezhi specifically asked about it, and Yang Bo said that he did tell Zheng Mingyuan that Zhang Zhiheng was coming to the research institute at that time.

But why did Zheng Mingyuan do this? This made Shen Zezhi never understand. Zheng Mingyuan has been at the Rongcheng Institute of Pharmaceutical Research since he was a graduate student, and there has never been a leak in the institute in the past five years. The plan was launched five years ago, and Zheng Mingyuan participated in this plan as soon as he entered the research institute, which shows that Zhou Jie, including Zhang Zhiheng, is still good to him. There is also the fact that he was a participant in this plan from beginning to end, what did he steal when he went to Zhang Zhiheng's house?

After determining that Zheng Mingyuan was the suspect, Shen Zezhi began to investigate him, and the results of the investigation undoubtedly further determined that he was the murderer. Zheng Mingyuan opened an account as one of his relatives, and one million US dollars were transferred into his account half a month ago. In addition, he used this relative's ID card to apply for visas for several countries, and when he called up the basis of the visa, the photo inside was Zheng Mingyuan himself. So Zheng Mingyuan can leave at any time now. Shen Zezhi thought that Zheng Mingyuan didn't leave immediately after killing Zhang Zhiheng and stealing his notebook, it should be for the delivery of medicine.

The person from the National Security Bureau, codenamed Harrier, was responsible for transporting the finished experimental products, and since Zheng Mingyuan had already disclosed the content of this plan, it was nothing to leak the relevant content of this transportation operation.

He was a participant in the project, so it was not surprising that he knew a little about the transportation operation, but after all, he was not responsible for this matter, and he only knew the general content. But it was these general contents that had allowed the experienced spy group to find out exactly when the plan was going to take place. So the killer codenamed Firefox killed the real He Yan, and then borrowed his identity to become the conductor of G308 and killed the harrier on the train, but he didn't know that the medicine was divided into two, so he only got a part of the reagent.

So it can be said that the deaths of Zhang Zhiheng and Harrier are all attributed to Zheng Mingyuan's betrayal. He betrayed his research and his homeland.

Shen Zezhi had already chased behind Zheng Mingyuan's car, and looking at his driving route, he knew that Zheng Mingyuan was planning to run away.

Zheng Mingyuan has been restless today, in fact, since the day he killed Zhang Zhiheng, he knew that he couldn't go back. But he didn't mean it, if he wanted to blame it, he only blamed Zhang Zhiheng for being stubborn. Obviously, a more powerful drug has been developed, why hide it, if they hand over that thing, they will definitely become national treasure-level scientists, and their reputation and status are not comparable to what they are now.

Thinking of this, Zheng Mingyuan had a hideous expression on his face. The accident in the experiment was caused by his carelessness, he originally thought that he was in trouble, but he didn't expect to synthesize a more powerful drug by mistake, but when he was very excited to hand over the drug to Zhang Zhiheng, he was scolded by Zhang Zhiheng, and destroyed the drug to let him not leak this matter. Originally, Zheng Mingyuan thought that Zhang Zhiheng did this just because the drug was too domineering, but he didn't expect that Zhang Zhiheng was just a sanctimonious hypocrite. While not allowing Zheng Mingyuan to continue researching this drug, he secretly recorded the important ingredients of the newly synthesized drug.

When Zheng Mingyuan found out about this, a wave of anger filled his brain all the time, and he felt that he had been deceived. So that day, when he heard Yang Bo inadvertently say that Zhang Zhiheng was going to the institute to work overtime, he knew that his opportunity had come, he had been to Zhang Zhiheng's house once before, and at that time he secretly matched the key to Zhang Zhiheng's house, but who knew that Zhang Zhiheng would come back so soon, Zheng Mingyuan was scared and strangled Zhang Zhiheng's neck with a tie on the chair.

Zheng Mingyuan took a deep breath and whispered in his mouth: "He forced me, he forced me, he forced me, he forced me......"

Shen Zezhi looked at the accelerating car in front of him and frowned, he had already informed He Lang before he came, and he must block Zheng Mingyuan today no matter what. If you catch Zheng Mingyuan, you can tear that spy organization apart. Shen Zezhi stepped on the accelerator.

At the same time, the sound of sirens came from behind, and Shen Zezhi knew that reinforcements were coming.

Zheng Mingyuan, who was in the car in front of him, immediately panicked when he heard the siren, since he killed someone, he didn't dare to listen to the siren and dare not see the police. Every time he saw the police, he felt like he was coming to arrest him. Zheng Mingyuan swallowed his saliva and sped up the lock.

Shen Zezhi was chasing after him, and police cars also appeared at the intersection in front. On the road to the airport in Rongcheng District, there was a scene of car chase.

A black sedan in front, a black SUV in the back, and three police cars in the back, sirens blaring through the sky.

Sweat began to flow down Zheng Mingyuan's forehead, and the loudspeaker on the police car behind him came to ask him to pull over, but Zheng Mingyuan knew that he definitely couldn't stop. He knew that he was guilty of sin, murder, treason. Each of these is a crime that could be sentenced to death, and it must not fall into the hands of the police. Zheng Mingyuan accelerated again, and the black car rushed forward at a gallop.

Shen Zezhi behind him slowly frowned, Zheng Mingyuan's current speed was dangerous.

Just after Zheng Mingyuan accelerated, a small fuel tanker truck suddenly drove out at an intersection in front of him, and the body was marked with a dazzling poisonous gas. Zheng Mingyuan made a fatal mistake in a panic, he stepped on the brakes and turned the steering wheel to avoid the tanker truck lying across the road in front of him. The car at high speed instantly lost control and crashed diagonally

The fence on the side of the road was then bounced back and crashed into the tanker truck in front. The loud bang was followed by a skyrocketing fire, and explosions rang out one after another.

Shen Zezhi immediately stepped on the brakes, and the friction between the tires of the car and the ground made a sharp sound, and white smoke rose under the high-speed friction between the rubber tires and the ground. Shen Zezhi's car finally stopped sideways on the road not far from the explosion. Shen Zezhi got out of the car, looked at the billowing smoke in front of him, and slapped the roof of the car fiercely.

The police cars behind stopped one after another, and someone called an ambulance and a fire brigade. But everyone knows that the people in the car are absolutely hopeless, and even if they don't kill him, they will burn him to ashes.

At this time, Kikoyue ran over from behind, looked at the scene of the tragic car accident in front of him, opened his mouth, and didn't know what to say.