I'm just a trainee police officer. I don't really want to solve the case.

"Have you really figured out who the murderer is?" Xiao Yu's eyes lit up. He was indeed his idol.

"I did think of a possibility, but we still have to find the evidence." Su Xiaoxiao touched her nose. In fact, she was not completely sure.

"It's okay, just speak up." Qi Lei looked at her encouragingly.

"Actually, from the beginning, the question of why the murderer buried the body in 1801 has been bothering me.

If the murderer is the owner and he was buried in his own home, it would be totally unacceptable.

But if the murderer was not the owner, why would he bury the body in someone else's house? Someone just said that it was convenient to deal with it this way, and Jiao Fugui had not sealed the bathroom at that time.

However, although this is convenient, it can easily be noticed by others, such as by smell or water leakage.

Moreover, if he could dismember Jiao Fugui's body and throw it away, he could naturally dismember Cheng Yiyi's body and let Jiao Fugui take it away and throw it away. Because Jiao Fugui's renovation work there was registered, he would not arouse suspicion when he dragged things in and out.

Even if the body parts are discovered in the future, it will be difficult to find the source. This is the safest approach.

Just like Jiao Fugui’s body parts, although we have found out his identity, if the body had not been dug out from the bathroom of 1801, I am afraid we would not know the real cause of his death until now.”

Qi Lei nodded. It was true. It had been almost a year since they found the body parts. If Su Xiaoxiao hadn't saved an old man who had fallen, their identity might not have been found yet, let alone the cause of death.

"So, I thought of another possibility, that is, the murderer had a conflict with 1801, and buried the body in 1801's bathroom purely to disgust them or to take revenge on them.

But then I thought about it again and it didn’t make sense. When Wen Shanshan and Feng Zhicheng moved in, the body was already there, and they didn’t even know their neighbors at that time, so I felt that my idea was wrong.

Today, Captain Qi and I met with Huang Yong, and he provided us with a clue, that is, he was recognized by a woman when he was taking the elevator. This woman got off the elevator on the 18th floor. She should live on the 18th floor. Of course, it is not ruled out that she deliberately came down from the 18th floor to mislead Huang Yong.

Of course, combined with the condition that the body was buried in the bathroom of 1801, the possibility of her misleading can be ruled out. In other words, if this woman is the murderer, she should be a resident on the 18th floor.

But I just looked at the information you got about the residents on the 18th floor, and I feel like it doesn't match. These residents all have families. Even if the age and body shape of the hostess meet the conditions Huang Yong mentioned, they do not have the conditions to commit the crime, because it is impossible for them to avoid their families to deal with the body.

Therefore, I think it is more likely that the murderer lives alone.

There is no one living alone on the 18th floor, but there is one on the 19th floor. But this goes back to the same question. If we take the body from the 19th floor to the 18th floor for disposal, it will be discovered if we are not careful. This is a big risk. Look here."

Su Xiaoxiao pointed to the floor plan of the 18th floor posted on the whiteboard.

"Room 1801 is at the innermost part, and Room 1802 is next to it. If we talk about convenience, Room 1802 is the most convenient. As long as we open the door of Room 1802, we can block the cameras in the corridor, including the cameras on the security doors of other residents, and bring the body into Room 1801.

But the family living in 1802 now has not only old people but also children, and there is no condition for them to commit a crime. It can't be that the whole family are bad people.

So, I thought of another possibility, that the owner of 1802 had changed, and the original owner was not this family.

I have just verified this with the property management.

Coincidentally, I know the owner of Room 1802. Her name is Zeng Rou. She is a doctor at the Second Hospital and she is Jiao Zheng's attending physician.

Wen Shanshan was also a doctor at the Second Hospital, and belonged to the same department as Zeng Rou. After Wen Shanshan took sick leave, she became the chief physician. Therefore, doctors in the same department are in competition with each other, and conflicts are inevitable.

If Wen Shanshan had ever taken away something that originally belonged to her, would she be jealous of her? And was Wen Shanshan's mistake that time also related to Zeng Rou?

We need to check these out, now I am just saying this is a possibility.

If she was the murderer and knew that the family next door was Wen Shanshan, she might have buried the body in the bathroom of 1801."

"Anything else? Go on." Qi Lei listened carefully, and something in his mind suddenly became clear.

"Also, regarding why Zeng Rou wanted to kill Cheng Yiyi, I don't think it was because she discovered Cheng Yiyi's secret and wanted to threaten her.

Instead, she recognized Huang Yong and knew his identity. She thought Cheng Yiyi was a mistress, and the reason she killed her might be simply because she hated the mistress.

The reason why I spent so much time on the phone with the property management was to ask about this situation. The property management said that the original owner of the house was her husband, and the house was transferred to her name after they divorced. I guess the reason for the divorce was that her husband had someone else.

The property management said that after her husband moved out, the dog he had raised died inexplicably, and she cooked and ate the dog, which most people would not do. I guess because of the unhappy marriage, her psychology is somewhat distorted.

That day in the hospital, she didn't even ask any questions and just subjectively concluded that it was me who hit Jiao Zheng. She also said that she had seen many people like me who pretended to call the police to evade responsibility after hitting someone and didn't allow me to refute her at all. This shows that she has her own set of moral standards.

Moreover, she put the house for sale after 1801 was renovated. She had already sold the house and moved out before Wen Shanshan moved in. Wen Shanshan might not even know that she had lived next door to her.

Later, she heard my conversation with Jiao Zheng in the hospital and may have known that Jiao Fugui was his son. She was next to him when Jiao Zheng reported his disappearance to me, so she knew that Jiao Fugui's death might be discovered.

I suspect that she went back to Guan Cui Hua Ting to see if the body of No. 1801 had been found. As a result, the body had been found, but she didn't know that we had already found out Cheng Yiyi's identity, so she sent a second message to Huang Yong using her mobile phone, just to create the illusion that Cheng Yiyi was still alive.

Of course, these are just my speculations at the moment, but I think some things are not difficult to check. If she has been to Guancui Hua Ting recently, the surveillance should be able to check it, and it is also easy to check whether she and Wen Shanshan have any conflicts.

I think the victim should still have her cell phone, at least Cheng Yiyi's should still be there. She doesn't even know we suspect her, so she might not have lost it."

"You're right. If 1802 is the first murder scene, then there must be bloodstains when she killed and dismembered the body. Even if she cleaned it up thoroughly or even repainted it, there would be no way that there would be no traces at all. Everyone, go and check separately." Qi Lei ordered.

As long as it is a crime, there will always be traces left. A perfect crime is impossible.