Gongsun's words came in with great momentum made everyone stunned.

"Didn't it die because of death smile?" Zhan Zhao asked again.

Gongsun nodded.

"Ah?" Everyone asked inexplicably, "Then why did they laugh before they died?"

"It would be strange if you don't laugh! Also, didn't the car stop slowly?" Gongsun asked.

Everyone nodded

"Xiaoqi has hypnotic ingredients! I parked the car before falling asleep! Then I died directly!" Gongsun said angrily, "Xiaoqi will decompose when it comes to heat, so I said that the nitrogen content is so high!"

"Gongsun." Zhao Hu couldn't help asking, "What is laughing at you?"

"Nitrooxide! A type of anesthetic agent is often used by dentists." Gongsun said, "Just just now, I asked the police to remove the car. Under the seat of the car, I found a sealed can bottle of nitrooxide. The valve was open and the air was leaking!"

Zhan Zhao and others nodded, and in this case, their deaths would be explained.

"It seems that I have made preparations!" Bai Yutang said, "Otherwise, why would the bottle of nitrous oxide be hidden under the stool?"

"They inhaled in an overdose at once. They probably knew that they were poisoned and wanted to open the window to dissipate the air, but it was too late. "Gongsun said, "Nitrooxide is a medical anesthetic. Its medicinal properties are very clear and easy to calculate. People with pharmacology knowledge can accurately calculate how much time it takes to inhale a smile, which will make people die!"

"Is it the second personality that is so meticulous?" Bai Chi asked.

"Well..." Zhan Zhao touched his chin, as if he was thinking, and after a while, he said to himself, "Maybe it's not... This case was probably Zhang Net, and we found a corner."

"Maoer, what did you think of again?" Bai Yutang asked.

"This thing seems to be not done by that person's second personality, and his behavior does not conform to his psychology!"

"What do you mean?" Bai Yutang asked.

"The second kind of personality is cautious and has no paranoid behavior, so it will not be obsessed with insisting on three people dying together." Zhan Zhao said with a frown.

"Is that done three?" Bai Chi asked.

"It doesn't look like San either." Zhan Zhao shook his head and said, "San is not so meticulous, and it doesn't fit his violent personality."

"How to explain it?" Bai Yutang asked Zhan Zhao.

"It was done by another person." Zhan Zhao said, "This case is far from over. The murderer should have been instructed by another person."

Everyone looked at him and waited for Zhan Zhao's explanation.

"Well..." Zhan Zhao thought for a while and asked, "Jiang Ping, do you have a topographic map of the community?"

"Some." Jiang Ping handed the topographic map of the community to Zhan Zhao. Zhan Zhao opened it and looked at it, frowned slightly, and said, "Sure enough."

"What exactly?" everyone asked, looking at the drawings.

"There are two doors in this community, one east gate and one west gate." Zhan Zhao said, "The place we went to is the east gate, and there is another door, the west gate... and the place where we caught the murderer walking out with a bomb on his back was close to the west gate.

"Maoer." Bai Yutang said, "What you mean is that they did go to that community to pick up people, but they originally picked up people at Ximen, not at the East Gate. After all, it was a long way to go to Ximen. Later, the murderer found out that we were following us, and the man escaped. He changed his plan and had to gather three more people, so he wanted to make a stop to the East Gate?"

Zhan Zhao nodded and said, "Calculate the time. When we came, we passed by Ximen. It can be said that we bypassed half of the community from Ximen to the East Gate... We wasted nearly ten minutes of time in this."

Everyone nodded.

"Then...if they had agreed to meet at Ximen, the other person also got into the car with a bomb." Zhan Zhao asked, "What would happen?"

"Explosion." Bai Chidao.

"And it is possible that the corpse's face will have a smile... Of course, the premise is that the corpse still has a face... However, if the body explodes, it will be difficult to judge whether he is poisoned."

"Yes." Gongsun nodded.

"In addition, it exploded in the back seat, and the laughing gas tank would also be blown away, and it would be mistaken for just a fire extinguisher." Zhan Zhao said, "This is the real seamless, and all the clues are cut off. It can be seen that this person's meticulous thinking is above the second level of the murderer's personality! It is quite difficult to deal with."

Everyone nodded.

"Then why did Wang Aihua, who was driving, detour to the east gate?" Shen Zhongyuan asked, "He probably didn't call."

"It's very simple." Zhan Zhao smiled and asked Bai Chi, "Chichi, do you remember when we passed the west gate, was the door open or closed?"

Bai Chi thought about it, and the scene at that time flashed in his head... and it was still rewind, just like a rewind... The door to the west was - "Close!"

Zhan Zhao smiled and took him to him.

"Ah!" Bai Chi was stunned again and said, "I have seen this person before!"

Zhan Zhao smiled, nodded, and said, "That's right! I saw a back. When we passed by Ximen, he happened to walk back!"

"Yes!" Bai Chi nodded quickly and said, "I remember that there is such a person, but no one noticed it just now!"

Everyone looked at each other, looking at the two of them speechlessly, wondering - is this a brain, or a high-power camera? Is it too evil?!

Bai Yutang said, "If the Ximen is closed when they pass by the Ximen, the murderer will gesture to them behind the door and ask them to go to the East Gate... They will go!"

"But..." Shen Zhongyuan asked in confusion, "Why was Ximen closed?"

"Yes, did the people in the communication room listen to the murderer?" Jiang Ping said, picking up the phone and asking the property in the community. The property gave them the phone number from the Ximen communication room, but no one answered the call.

"Is it because the security guard is not here? Or is it that an accident happened?" Zhao Hu asked.

Zhan Zhao smiled and said, "Actually, there is another possibility."

"What?" Everyone looked at Zhan Zhao.

Bai Yutang asked, "He is the administrator?"

Zhan Zhao smiled and patted Bai Yutang on the shoulder, "I am sure that he is Captain Bai, he is so smart!"

Jiang Ping frowned, called the property company again, asked the security guard's name, and the name he got was Xu You. He heard that it was reported suddenly in the afternoon, saying that it was Simenka's owner and could not be opened, so he had to wait for someone to repair it tomorrow.

Everyone was delighted, and it seemed that they had a good guess.

"Jiang Ping, search for this person." Bai Yutang walked to the computer and told Jiang Ping.

Zhan Zhao and others also surrounded the computer. Jiang Ping found out Xu You's identity information... After sifting for a while, he sifted out a photo and found... it was the person they caught just now.

"So his name is Xu You." Bai Yutang thought for a while, looked at Zhan Zhao, and suddenly seemed to have thought of something. Bai Yutang asked Zhang Long, "Does he have a cell phone with his belongings just now?"

"Some." Zhang Long found his cell phone from the evidence bag, and Bai Yutang handed it to Jiang Ping, saying, "Check who he had been on the phone with before.

"Yes." Jiang Ping began to investigate.

"Zhang Long Dynasty, you go to the property company and investigate the background of Xu You. Zhao Hu and Ma Han. You go too. When they went to the property company, you found Xu You's residence. Remember to bring the forensics person with Ma Xin and pay attention to the issue of evidence collection!"

"Yes!" The four of them came out of SCI.

Liu Qing suddenly asked Zhan Zhao, "Doctor, I'm a little confused. Why did the car stop on time when it reached the east gate? And it happened to be dead?"

Zhan Zhao hesitated for a moment, frowned slightly, and said, "They went to pick up people, so they would naturally stop when they arrived at the East Gate."

"Oh, right!" Liu Qing patted his head, my head really couldn't turn.

But when everyone looked at Zhan Zhao again, they saw that his face seemed to have a different expression.

Bai Yutang put down the information and said, "Prepare to review Xu You, and you will check the clues about this person, and the escaped person."

"Yes!" Everyone nodded, and Zhan Zhao was pulled away by Bai Yutang.

When the two of them left the door, Liu Qing seemed to feel that the atmosphere was wrong, so she scratched her head and asked, "Uh... Did I say something wrong?"

Shen Zhongyuan shook his head helplessly and said, "You, you are really not wrong, your mind can't turn!"

Liu Qing was a little wronged and asked, "What's wrong with me?"

Shen Zhongyuan glared at him fiercely and asked, "When the car arrived at the gate, wouldn't we have to rush over? Dr. Zhan was afraid of bombs inside, so he didn't let us get close, and he even invited someone to dismantle the group!"

Liu Qing nodded, "So what?"

Bai Chi sighed softly and said, "Brother must be thinking that if he had gone there early, maybe Wang Aihua and Guo Chengru wouldn't have to die."

...

Liu Qing was stunned for a moment, touched his head, and said, "How could this... how could he say that? Then if there were really bombs in the car at that time, wouldn't we all be killed?"

"Brother doesn't think so." Bai Chi said.

"Actually nothing." Gongsun said, "It's said that the car window has been opened. After a certain amount of laughter gas is inhaled, it will definitely die. It has nothing to do with saving it early and late, so there is no need to blame yourself at all."

"Then tell him?" Liu Qing asked, "I feel very guilty."

Gongsun smiled and said, "Didn't you see Bai Yutang pulling him out? You thought of it, he had thought of it for a long time."

"Uh... I've always wanted to ask." Shen Zhongyuan asked, "What's the relationship between Captain Bai and Dr. Zhan?"

"Lovers." Everyone answered in unison.

Shen Zhongyuan and Liu Qing showed a surprised expression on their faces. Gongsun narrowed his eyes and looked at him and asked, "What? Can't accept it? You don't accept it and you will go out of the team if you don't accept it!"

Everyone was a little powerless. Shen Zhongyuan and Liu Qing quickly waved their hands and shook their heads and said, "This... we don't care, we don't care, it doesn't affect anything."

"Yes." Gongsun nodded, pushed the eyes on the bridge of his nose with his index finger, looked at the two of them for a while, and turned around and left.

Jiang Ping came over and said to the two, "Our captain's eldest brother and Gongsun are also lovers, and they are already married."

"Oh." The two nodded.

"There are also Bai Chi and Zhao Zhen, who are also lovers." Jiang Ping whispered, "Remember, Brother Bai, Zhao Zhen and Gongsun. When these three people saw this, they tried to take a detour and don't mess with each other. It's very scary!"

Liu Qing and Shen Zhongyuan looked at each other and nodded nervously.
To be continued...