Mo Xiaoqing felt very depressed that a man could kill his own sister and yet wear a watch to express his remembrance as if nothing had happened.

She rushed over and questioned, "Liu Lixuan, you know best what you have done. We, the police, know whether you are the murderer or not."

Liu Yuxuan's smile slowly climbed up, "No way, since you have already confirmed that I am the murderer, why don't you arrest me?"

"Liu Lixuan, don't be too arrogant, we have found out that you left your notes on the letter threatening your sister.

Your threatening letter exudes strong resentment, so you resent it to the point of wanting to kill her."

Liu Lixuan retorted, "Yes, I did write a threatening letter to my sister. I have already told you that my sister cannot recognize my homosexual identity, and I hate her more because of this, that's all."

"Okay. Mo Xiaoqing continued to say, "Okay, you said you didn't kill your sister, and you have an alibi, right?"

"Yes, I was with a bar girl that night."

Mo Xiaoqing yelled, "You lied, you didn't stay in the hotel all night, when the incident happened, you changed into women's clothes and went out of the hotel, then returned to the hotel, and slowed down the bar girl's watch. In this way, you got a perfect time witness. The surveillance footage will not lie."

Liu Lixuan still smiled calmly, "Officer, you are really good at joking.

He put the cigarette in his hand into the ashtray and stubbed it out,

"Okay, I admit that I did go out wearing women's clothes that night, but have you forgotten that I am a lesbian. Is it wrong for me to like wearing women's clothes?"

"Then why didn't you confess to the police earlier?!" Mo Xiaoqing asked, while Xu Yao was watching silently beside her.

"Do you mean to make public the fact that I am gay and like to wear women's clothes? I don't have the courage to do that."

Liu Lixuan refuted again and again, but Mo Xiaoqing couldn't find any better evidence to suppress him. She was so angry that she had to shout loudly:

"Don't think that if you destroy the evidence, we police can't do anything to you. As long as you commit a crime, you must leave clues!

Liu Lixuan, you are in such a hurry to go abroad because you are afraid of the crime and want to escape!" Mo Xiaoqing was so angry that she dared to say anything.

Liu Lixuan was also aggressive, "Comrade police officer, we taxpayers pay money, but you can't abuse your duties and willfully damage the reputation and personality of citizens.

As for the purpose of my going abroad, it is definitely because of my business needs."

Mo Xiaoqing was so angry that her face turned red. When she didn't know how to respond, a warm current came over her shoulder. She turned her head and saw Xu Yao's big hand on her shoulder.

Xu Yao said, "Liu Lixuan, don't get excited. My men were too reckless. We are sorry for disturbing you today. We will leave now."

After everyone left Liu Lixuan's room, Mo Xiaoqing was still angry,

"Captain Xu, why should we be afraid of him and say nice things to him, knowing that he is the murderer!"

"Where is the evidence?" Xu Yao asked.

Mo Xiaoqing hesitated, "I..., Captain Xu...", and finally chose to remain silent.

She knew that the police did not have enough evidence now.

Liu Lixuan's flight to the United States is at 4 o'clock tomorrow afternoon. It is not impossible to use some means to force Liu Lixuan to stay, but Xu Yao does not intend to do so.

He firmly believed that one day was definitely enough, and at the same time, he was even more convinced that as long as the criminals committed a crime, they would always leave clues.

There are many unsolved cases in the world. It does not mean that the criminals really did not leave any clues to solve, but they were interfered with by various factors such as the environment and equipment.

Another reason why more unsolved cases cannot be solved is that there is insufficient evidence. Even if you know that he may be the murderer, it only stays at the level of possibility.

When you do not have enough evidence to support your so-called point of view, even if the criminal is standing in front of you, you can only choose to let him go.

After returning to the police force, Xu Yao locked himself in the office and refused to open the door no matter who knocked.

Xu Yao was not meditating when he locked himself up. He just didn't want his thoughts to be disrupted by others.

There are less than 24 hours left. If there is still not enough evidence to prove that Liu Lixuan is the murderer, and Liu Lixuan has a large legal team behind him, it will be difficult for the police to stop Liu Lixuan from leaving the country.

Time passed by minute by minute, and the criminal police sent out also reported to Xu Yao one by one by phone.

"There is no progress at all."

At 6:30 in the afternoon, Xu Yao had not come out yet, and Mo Xiaoqing sat in the big office on pins and needles. After all, Xu Yao had just recovered from the hospital and had to eat on time.

But the time was already 8:30, and Xu Yao still hadn't left the office.

Mo Xiaoqing couldn't sit still, he called Captain Xu, meaning to send him food. Unexpectedly, Xu Yao agreed.

Mo Xiaoqing quickly went to the cafeteria to get food, and also added a serving of hot soup, and ran to deliver it.

She pushed open Xu Yao's door, walked in breathlessly, and walked quickly to Xu Yao's table.

"Captain Xu, eat quickly, I brought you warm soup to warm your stomach."

Mo Xiaoqing took out the food in the plastic bag, and the soup was also packed in a round paper box.

She was about to put it in front of Xu Yao, but suddenly she was not paying attention, and the soup box fell on the table with a bang, and all the soup inside spilled out, splashing Xu Yao.

At the same time, Xu Yao's watch was also splashed with soup.

Mo Xiaoqing quickly took out tissues and wiped Xu Yao's clothes and watch vigorously.

"Captain Xu, I'm sorry, I really can't do anything right and made your clothes dirty. The watch is stained with soup, but it should be okay, right?"

Xu Yao took off his watch and wiped it carefully with paper.

Mo Xiaoqing's face was full of guilt. She had good intentions at first, but ended up doing bad things.

Xu Yao said, it's okay, just wipe it clean.

"Captain Xu, I'm really sorry! Although the outside can be wiped clean, there will still be a lot of oil stains inside. How about this, I'll take it to a professional place to clean it."

After Mo Xiaoqing finished speaking, all she got was silence from Xu Yao. She became more and more nervous. It seemed that Captain Xu was really angry.

After a long time, Xu Yao spoke, "What did you just say? Repeat it again."

Mo Xiaoqing replied with a stunned head, "I'm sorry for what I said just now!"

"Not this sentence, the next one."

Mo Xiaoqing tried hard to recall what she had just said, "I said, the outside can be wiped clean, but there will still be oil stains inside."

Xu Yao's voice suddenly became extremely excited, "Yes, that's it. That's right, this is what I want."

Mo Xiaoqing was even more confused after hearing this. She had stained Captain Xu's watch with oil, but now Captain Xu was so excited.

"Yes, even if the outside of the watch is wiped so clean, the inside cannot be cleaned."

Mo Xiaoqing had to ask timidly, "Xu Xu... Captain, I really didn't mean it."

Before she could react, Xu Yao suddenly rushed over and hugged her, turning around and putting her down.

"Little one, I'm really lucky to have you this time. I can finally find evidence."