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In this way, Su Yun’s reaction seemed to be a little difficult to ask. Did he leave her in the lurch for another reason?

“Su Yun…” Zhou Xiaoxiao had not spoken all this while. At this moment, when Su Yun was mentioned, she could not help but think of a coincidence. Su Yun had appeared at the crime scene twice in a row. One was a robbery, and the other was the Burning Mountain Tomb Robbery.

Although Su Yun did not appear at the scene this time, because of Xu Jiajia, the case was related to him again. With the appearance of these thoughts, conjectures about Su Yun could no longer be shaken off.

Zhou Xiaoxiao was not just a vase. She was very professional. Otherwise, she would not have been recruited to the Criminal Investigation Department as soon as she graduated. She also had the thoughts of a new generation of young people. Compared to Zhou Nanhai and the others, she was cautious and logical.

Sometimes, some of Zhou Xiaoxiao’s thoughts seemed to be more jumpy.

However, to Zhou Xiaoxiao, this was also her advantage. Therefore, Zhou Xiaoxiao quickly thought of something that she had thought of many times before.

If the card flew out, could it kill? She had consulted many professionals about this problem. For example, Dr. Qin told her that it was impossible unless Apothecary Huang, who was sixty years old, did it. However, Zhou Xiaoxiao did not give up. Then, she consulted some famous professors and received an answer.

[Cards are a type of card with sharp edges. Moreover, the area of force is very small and the pressure is very high. This also made the cards indeed have the effect of cutting off. However, it was not only cards that could do this. Ordinary paper could also do it. The fastest speed for ordinary people was 108 kilometers per hour. According to the simulation data, if they wanted the cards to have the ability to hurt people, they needed to reach a speed of 241 kilometers per hour.

[Even at this speed, the cards could only hurt the epidermal tissue, which was commonly known as broken skin. The kinetic energy of a flying object is proportional to the mass, and the smaller the mass, the smaller the kinetic energy. Although the edges of the cards were sharp, the quality of the cards was too small to reach the level of killing.

[Therefore, from a scientific point of view, throwing cards to kill people is impossible!]

This was an answer from a physics professor, but it did not dispel Zhou

Xiaoxiao’s doubts. However, Zhou Xiaoxiao did not say this guess now. This was because she had proven it many times before. No one would believe her even if she said it. After all, it did not conform to scientific evidence, and there was no way to prove it.

Moreover, even Zhou Xiaoxiao herself felt that this speculation was a little ridiculous.

Then, based on his suspicion of Su Yun, Zhou Nanhai quickly ordered more information about Su Yun. His identity information was ordinary, and he did not have any criminal records. However, at least from the information about Su Yun, he had already understood the house Su Yun was currently renting and his hometown in Fan City next door.

Therefore, Zhou Nanhai quickly gave the order. “No matter what, let’s find Su Yun first. We still need to get answers from him. He might become an important breakthrough!”

After Zhou Nanhai gave the order, a few police cars quickly drove out. Soon, they arrived at the downstairs of Su Yun’s rented house. This scene was not common in the city, so it quickly attracted the attention of the other residents.

“What happened? Why are there so many police officers?”

“I don’t know. They’re all surrounding Building 2. Let’s go take a look…”

“This is an old residential area. We know everyone in the neighborhood. What could have happened?”

Soon, many residents surrounded the police car to watch the show. At this moment, the police had already entered Building 2 and knocked on Su Yun’s door.

“Is Su Yun there? Knock knock knock…

“Su Yun?”

However, after knocking for a long time, no one responded. This made the police not know what to do for a moment. The police officer leading the team quickly reported to Zhou Nanhai. This news also made Zhou Nanhai quickly vigilant.

“Su Yun doesn’t have any formal work and is relying on live streams to survive. He’s not live streaming now, yet he’s not home? Moreover, we can’t get through to his phone?”

This was obviously abnormal, but because there was no evidence of Su Yun’s crime, the police could not break in just like that. Therefore, Zhou Nanhai quickly adjusted his plan. He left a team of plainclothes police officers to keep an eye on Building 2. Once Su Yun returned, they would immediately bring him to the police station.

On the other side, he quickly contacted the police in Fan City, where Su Yun’s hometown was. He also sent a team to Fan City to interrogate Su Yun’s family.

After this order was given, the police car quickly drove away as if nothing had happened, leaving behind confused residents who were still gathered there to discuss. From the beginning to the end, they did not understand the purpose of the police’s visit. Why did they suddenly come and leave?

What these residents did not know was that not long after the police left, a team of police officers disguised themselves in plain clothes and returned to this old neighborhood. They lay in ambush near Building 2 and occupied the most powerful spot to keep an eye on him, quietly waiting for Su Yun to appear.

To the police, Su Yun’s disappearance had clearly increased the suspicion on him. Especially at this special time, Su Yun’s sudden disappearance made all the suspicious points point at him..