Xu Yao touched his chin and analyzed:

"There are two possibilities. One is that Huang Yousheng and his wife committed the crime together. Another possibility is that Huang Yousheng simply had a candlelight dinner with Liu Lidan. After he left, Mrs. Liu also came to the villa. She had a fight with Liu Lidan. During the fight, Liu Lidan scraped off the nail polish on Mrs. Liu's hands, but Mrs. Liu got the upper hand and took out a fruit knife prepared in advance and stabbed Liu Lidan.

After Mrs. Liu killed someone, she cleaned up the scene, but ignored the details and left her own nail polish in Liu Lidan's nails.

Xu Yao felt that this inference was completely logical, so he added another phone call to let Someone from L City was sent to monitor Mrs. Liu, and the nail polish samples were quickly sent for testing and comparison.

But Xu Yao was also confused, "It has been three days since the incident. If Mrs. Liu really killed someone, but the nail polish on her hands has been washed off, will it be useless to collect nail polish for testing and comparison now?"

Mo Xiaoqing answered firmly, "No, when we went to her villa, Mrs. Liu once said that her nail polish was unique."

Lin Yalin watched Xu Yao and Mo Xiaoqing talking to each other in perfect harmony, feeling helpless and jealous at the same time.

In fact, she had always hoped that her relationship with Xu Yao could be as harmonious as theirs, but Xu Yao only trusted Lin Yalin's professional qualities in forensics, and he rarely listened to Lin Yalin's reasoning about the case. She

didn't expect Xu Yao to give such a sense of trust and tacit understanding to such a small assistant.

She couldn't help but sigh loudly: "Xiaoqing, you have made great progress. It has been more than an hour since you entered the laboratory, and you don't feel any nausea or discomfort. It seems that you have adapted to your identity."

When Lin Yalin's voice rang, Mo Xiaoqing really realized that she had just been discussing the case with Team Xu while standing calmly by the side, without any adverse reactions at all.

She suddenly realized it and exclaimed, "Oh! I really overcame this psychological barrier."

Xu Yao patted her shoulder gently to encourage her, "Well, not bad, keep it up!"

He raised his head and said to Lin Yalin with a smile, "Sister Ya, can you give me the complete report and information tonight?"

"No, it must be tomorrow afternoon!"

Xu Yao continued to play the warmth card, "Then I will treat you to dinner and promise you one condition, what do you think?"

Lin Yalin refused, "Don't be stingy, I'll work overtime today and try to give it to you tomorrow afternoon."

After coming out of the forensic room, Xu Yao was stopped by Liu Xiaobo in front of his office,

"Boss, as you ordered, I took two police officers to the hospital and met the security guard of Liu Lidan's home.

The security guard said that he sneaked out of the security room after 12 o'clock to drink with friends, and had a conflict with the guests at the neighboring table and was knocked unconscious by the other party.

However, after careful questioning, we got very effective clues. The security guard recalled that at 6:20, he saw a man walking into the villa from the surveillance. Liu Lidan met him at the door and gave him a big hug.

However, when the security guard claimed to sneak out at 12 o'clock, the middle-aged man did not come out."

Xu Yao asked Liu Xiaobo, "Specifically, what was the middle-aged man dressed and looked like?"

"The security guard said that the man was about 1.75 meters tall, with blue trousers under his black leather jacket."

Xu Yao continued to ask, "Did the security guard really see only one man enter the villa before he left?"

"I asked him this question, and he said that only one man entered."

"Okay, then you continue to ask around Liu Lidan's villa to see if there are any suspicious people that night. Also, to prove the authenticity of the security guard's confession, go to the stall where he had supper that night and ask."

Liu Xiaobo took the order and quickly stepped out of the office door.

Xu Yao brought Mo Xiaoqing into the conference room. Now he and Mo Xiaoqing have a better understanding of each other in their work.

They are both completely devoted to their work.

"Little one, come here and help me print out these materials and find all the pictures of the scene where Liu Lidan's case was found."

Mo Xiaoqing acted quickly and cooperated with Xu Yao's work. The only sounds in the whole office were the sound of Xu Yao typing on the keyboard and Mo Xiaoqing's busy figure.

When she sent the last printed material back to the office, Xu Yao had already scribbled on the blackboard and the whole blackboard was piled with photos.

Xu Yao was busy, and Mo Xiaoqing began to deduce the whole process of the case. She couldn't help but ask,

"Captain Xu, Liu Xiaobo just got information from the security guard and learned that only one man went to the villa from 6 pm to 12 am on the day of Liu Lidan's death.

Comparing with Huang Yousheng's confession, he went to Liu Lidan's villa that night wearing a leather jacket and blue trousers. It can be confirmed that the middle-aged man seen by the security guard was Huang Yousheng.

But Liu Lidan's death time was around 11 pm to 3 am. If this is the case, then the second suspect may have entered the room after 12 o'clock to commit the crime."

Xu Yao just perfunctorily answered two sentences, his thoughts were always fixed on the scene photos of Liu Lidan's death scene.

He kept repeating, "Strange, very strange, what's strange about it? I always feel like there's something missing here."

Xu Yao turned around and asked Mo Xiaoqing directly, "You should have been to the scene where Liu Lidan was murdered that day. You have carefully checked the furnishings of the entire villa. Think back, do you think there's anything wrong with the bedroom where Liu Lidan was murdered?"

Mo Xiaoqing also came over and took out a few pictures of Liu Lidan's bedroom and carefully checked them. The messed-up room, the opened drawers, the neatly arranged bookcases...

"I don't think there's anything wrong. Captain Xu, what do you think is illogical?"