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

Qi Lei's expression brightened when he heard Su Xiaoxiao say that she knew who the murderer was. Although this little girl's imagination was sometimes very wild and even difficult to understand, it always played a crucial role.

"Let's go, call everyone to the meeting room."

When everyone heard Su Xiaoxiao say that they knew who the murderer was, they gathered around without even shouting.

They also wanted to know who the murderer was.

Especially Xiao Yu, he has been completely conquered by Su Xiaoxiao. Now in his eyes, this senior sister is simply omnipotent.

He stood at the front and looked at Su Xiaoxiao with a pair of eyes full of curiosity.

Su Xiaoxiao stood in front of the whiteboard and pasted a photo of the crime scene and a panoramic view of the Emperor Hotel on the whiteboard.

"When I checked the scene, I smelled three people's scents in Liu Jiawei's room. One was Liu Jiawei's own, one was Zeng Xueer's, and the other smelled very strange. I thought I smelled it wrong.

But just now, I smelled that strange smell again, and a man happened to pass by behind me. I asked the waiter, and he said it was the guest who lived in room 1001 on the tenth floor. "

Su Xiaoxiao said as she pasted another picture onto the whiteboard.

"This is the person who lives in 1001, his name is Xie Rui, he is from the United States, and he is 26 years old.

He booked the room for half a month, the same time as Liu Jiawei and his friends were staying.”

Qi Lei stared at the person in the photo. The man in the photo had a decent appearance, but his hair was quite thick. Not only was there a lot of hair on his head, but there was also a lot of hair on his face. It was obvious that his beard had been carefully trimmed, but the stubble on his face was still very heavy.

"I have seen this person during the investigation. He was originally a Chinese, but later became an American citizen. Now that the country is developing so well, he came here to travel. If possible, he also wants to stay in the country to develop. I don't think there is anything suspicious about him, and he has nothing to do with Shu Xiaoxuan, right?" Guo Zhongliang frowned. He had seen this person several times. He was just a normal man, nothing suspicious about him.

Su Xiaoxiao pasted another photo on the whiteboard.

"Shu Xiaoxuan has two female friends, one of whom is Xiao Nan, her junior high school classmate. This is a photo of Xiao Nan.

Although Xiao Nan was a girl, her hair was different from that of ordinary people and she was often laughed at by others. So, she often cut her hair short and wore boys' clothes so that people who didn't know her would think of her as a boy instead of a monster.

So we couldn’t find any boys around Shu Xiaoxuan because she wasn’t a boy at all.”

"I understand. You mean Xiao Nan and Xie Rui are the same person, but they don't look alike. Although Xiao Nan has thick hair, you can still tell that she is a girl. But Xie Rui looks like a man, and the gender written on his passport is also male?" Xiao Yu looked curious.

"Yes, I think Xie Rui is Xiao Nan. He used to be a woman, but now he is a man. I guess he had a sex change operation abroad and completely turned himself into a man.

The third smell I smelled at the scene was very strange. It was neither like the smell of a man nor the smell of a woman. At that time, I thought there was something wrong with my sense of smell.

If Sheri had undergone sex reassignment surgery, then everything would make sense.

Moreover, Shu Xiaoxuan's English name is Sherry, and Xiao Nan's current name is Xie Rui, which is the homonym of Sherry, which shows that Xiao Nan has a very deep affection for Shu Xiaoxuan."

"Okay, even if Xie Rui is Xiao Nan, how did he kill Liu Jiawei?"

"When Liu Jiawei was killed, we only saw Zeng Xueer enter Liu Jiawei's room in the surveillance video, and we didn't see anyone else. But what if he didn't enter the room through the door?

I went downstairs to check, and the outer walls were all made of smooth glass, and it seemed that there was no foothold. But if the windows on the 10th and 11th floors were open, I could climb up with my ability, and I believe the murderer could as well.

When we investigated the scene, we found that the window of bedroom 1101 was slightly open. It was not left there intentionally, but the murderer was unable to close it tightly when he left through the window.

"I have a question. I asked the hotel. Because the air conditioning in the room is very comfortable, the windows of the guest rooms are generally not allowed to be opened. If the guests open it themselves, there will usually be someone in the room when the window is open. Wouldn't it be terrible if you climb in and get discovered?" Xiao Yu raised his hand.

"Indeed, this is a good question. Generally, only smokers will open the window, and Liu Jiawei does not smoke, so he did not open the window. Don't forget that last night, in addition to Liu Jiawei, there was another person who entered his room."

"You mean Zeng Xueer." Qi Lei raised his eyebrows.

"That's right. Zeng Xue'er has been here for two months. Apart from occasionally having meals with guests, she has never been to the guest room. Many people have invited her, but she took the initiative to go last night. This is completely different from her usual behavior.

Although the reason she gave made sense, it was a bit far-fetched. After all, they had just had dinner in the evening and it was possible to talk about such things while eating.

Therefore, I think she went to 1101 for only one purpose, which was to open the window to cover the murderer's entry. At this time, Liu Jiawei's attention was on her and he would not pay attention to other things. At that time, Xie Rui climbed in through the window and hid in the bedroom. After Zeng Xueer left, he would take action to get rid of Liu Jiawei.

Although Zeng Xueer has no connection with Shu Xiaoxuan, she has also studied abroad in the United States and is likely to know Xie Rui. "

"Then I have one last question. Because there have been a lot of activities in the hotel recently, security checks have been added at the door and knives cannot be brought in. So what did Xie Rui use to kill Liu Jiawei?" Xiao Yu raised his hand again, his thirst for knowledge overflowing.

"In fact, we have all seen the deceased's wounds. The marks on the deceased's wounds are not smooth, and the knife he used is not sharp. It is impossible that he brought the knife with him. I think he used local materials, and there is a kind of knife in the hotel that everyone can touch, that is, the table knife.

I checked. Xie Rui ordered a steak set meal in the room at 10 o'clock last night. Of course, steak comes with a knife and fork. The murder weapon was a table knife. I have seen that the edge of their table knife is serrated, which matches the wound of the deceased.

He called someone to collect the plates at 12 o'clock, and by then he should have finished killing people, so Liu Jiawei's death should have been before 12 o'clock. "

After Su Xiaoxiao finished speaking, Xiao Yu took the lead in applauding. Senior sister was so awesome. From now on, she would be his idol, and he wanted to be as awesome as her in the future.

This reasoning was very complete and everyone was convinced. At this time, the forensic report came out, and the time of Liu Jiawei's death was specifically between 11 and 12 o'clock.

Everyone was very excited and ready to carry out the arrest.

Just then, Li Yan brought in a express delivery. It was unknown who sent a express delivery to their criminal investigation team.

Qi Lei weighed it in his hand. It was very light and should not be dangerous, so he opened it. There were two recorders inside, one of which was a very old model that no one used anymore.

Qi Lei picked up one of them and clicked play.

Everyone was shocked when they heard the voice coming from the recorder.