Miss Qiao, are you all right?

It was late at night, and it was already past the time to get off work, but Qiao Shiyi was still working overtime in the office.

Looking at the information displayed on the computer screen, Qiao Shiyi's frown deepened a little bit, picked up the cup only to find that there was no more coffee in the cup, got up and went to the tea room to pour himself a cup of coffee.

When she came back, Qiao Shiyi accidentally saw that the lights in the autopsy room of the forensic department were still on: Qin Qianshu hasn't come home so late?

In the dissecting room, Qin Qianshu looked at the three corpses that had been stitched together by himself, took off his mask and gloves tiredly, wiped his sweat, and moved his already sore arms.

Suddenly, a white hand handed him a cup of steaming coffee. Qin Qianshu raised his head and saw Qiao Shiyi who was also holding the coffee.

"Are you tired? Take a break!" Qiao Shiyi didn't know why he poured coffee for Qin Qianshu, maybe it was because of the same sickness and sympathy for working overtime together until late at night?

"Thank you, it's so late and you're still off work?" Qin Qianshu took the coffee and took a sip.

"Aren't you off work too?" Qiao Shiyi sat on the chair next to Qin Qianshu, took a sip of coffee, and threw the question to Qin Qianshu again.

Qin Qianshu pointed to the three corpses on the dissecting table, and motioned to Qiao Shiyi: "I finished two days' work in one day."

"Thank you, Qin Fayi!" Qiao Shiyi looked at Qin Qianshu. The reason she worked so hard was because she knew that her superiors attached great importance to this case, so she wanted to solve it as soon as possible.

"Thank me for what?" Facing Qiao Shiyi's sudden politeness, Qin Qianshu was still a little uncomfortable.

"Let's go, treat you to supper!" As she said, Qiao Shiyi took Qin Qianshu's bag and pushed Qin Qianshu out the door, leaving only two cups of steaming coffee on the table.

This time, Qiao Shiyi did not take Qin Qianshu to a food stall, but to a 24-hour profitable convenience store.

"Officer Qiao, is this the night snack you're talking about?" Qin Qianshu picked up the instant noodles on the table and looked at Qiao Shiyi helplessly.

Qiao Shiyi nodded noncommittally: "Yes, young ladies like you must have only seen it on TV, but never eaten it. Come, have a taste!"

With that said, Qiao Shiyi handed the disposable chopsticks to Qin Qianshu.

Qin Qianshu took the chopsticks, opened the box of instant noodles, and was about to eat, but was interrupted by Qiao Shiyi.

"Hey, this is not so delicious"

"Isn't it just like eating noodles like usual?"

"Yes, but add this before eating!"

Like a magic trick, Qiao Shiyi took out a ham sausage and put it in Qin Qianshu's instant noodle box.

"Okay, wait a minute before eating!"

Qin Qianshu smiled, she had never eaten instant noodles or ham sausage, Qin's mother would not allow such food in the house when she was a child, so that Qin Qianshu never thought about eating it when she grew up.

Qin Qianshu opened the box of instant noodles, and a strong fragrance came out. She tried to take a sip, and Qin Qianshu was very happy as if she had discovered a new world.

"Hmm~ It's really delicious!"

"Isn't it delicious? This is no worse than the taste made by your five-star hotel chefs!"

"exactly!"

Qiao Shiyi doesn't usually eat instant noodles very much, but today she decided to take Qin Qianshu out for supper. She didn't know what to eat for a while, and suddenly remembered that when the old policeman was alive, he took himself to eat instant noodles. Qiao Shiyi really thinks instant noodles are very delicious food.

Thinking of the old policeman, Qiao Shiyi's good mood immediately plummeted to a trough, and the smile on his face gradually disappeared.

"Officer Qiao, what's the matter with you?" Qin Qianshu noticed Qiao Shiyi's abnormality, and couldn't help but put down his chopsticks to ask Qiao Shiyi.

"It's nothing, I just suddenly remembered someone... He also took me here to eat instant noodles..." When Qiao Shiyi spoke, his face was full of sadness, which made Qin Qianshu a little uncomfortable.

"Is that person important to you?" After thinking about it, Qin Qianshu still asked.

"Without him, I wouldn't be where I am today, so it should be a very important person..." Qiao Shiyi admitted without hesitation that the old policeman was indeed a very important person to him, both a teacher and a friend.

Qin Qianshu originally thought that Qiao Shiyi would deny it or hesitate to say it, but she didn't expect Qiao Shiyi to admit it to herself without hesitation, that person was really important to her.

"I'm full, let's go back." Saying that, Qin Qianshu picked up her bag, left the table and walked out of the convenience store.

Qiao Shiyi was still immersed in her own sadness, she didn't notice Qin Qianshu's change at all, and just followed her out of the convenience store.

After arriving home, Qiao Shiyi wanted to say hello to Qin Qianshu before entering the door, but Qin Qianshu's eyes were dull, and he opened the door and went in directly to close the door.

----

The next day, in the police station, Long Boyan sent the surveillance video to Qiao Shiyi's computer.

"Captain, I checked, and I didn't find any suspicious people at all, and I didn't find any vehicles carrying goods into or out of the park."

Qiao Shiyi opened the video and watched it from beginning to end, and found that there were indeed no suspicious vehicles or suspicious persons.

"Captain, what should we do? This case is more difficult than before." Long Boyan looked at Qiao Shiyi worriedly, but Qiao Shiyi didn't answer, but played the video again.

"There's a problem here!" Suddenly, Qiao Shiyi pointed to the time display on the video, frowning.

"What's the problem?" Long Boyan looked at it for a long time but didn't see why, but Xiao Xiao told the problem.

"Captain, are you saying that this tape is incomplete?"

"That's right, each videotape is from the same day, 24 hours is a videotape, but the video from 11:30 p.m. , the murderer threw the broken body into the lake during this period of time."

"But captain, the corpse will float when thrown into the water. If the murderer does this, he will expose himself as a murderer. Why did he do this?"

Facing Long Boyan's question, Qiao Shiyi rubbed his chin, stared at the computer screen, and suddenly an idea popped up in his mind.

"He's showing off!"

"Show off? Show off what?"

"The deceased were three women. After death, the murderer used a sharp weapon to dismember the corpse. The general murderer would use some means to dispose of the corpse. Either find a hidden place to dig a pit and bury it, or throw it into the sewer for the rats to eat. Wait, this method of throwing the body into the water is undoubtedly showing off to the police his killing skills and his means of avoiding the police's pursuit."

"It means that the murderer deliberately threw the body into the lake, the purpose is to let people find the body?"

"That's right, the average pervert murderer thinks a lot when committing a crime for the first time, and his thinking logic is also very strict, but after a long time, committing more crimes, and being undiscovered, he will inevitably be proud, but no one shares it. With his masterpiece, he will feel lonely, and if he is lonely for a long time, he will do extreme things.

Deliberately revealing the location of his crime and deleting the surveillance video of the scene will undoubtedly expose him to the police, but it's up to us whether we can find it or not! "

"Why are there so many perverts these days?" After Qiao Shiyi's words, Long Boyan couldn't help but shudder.

"That is to say, the murderer has been to the surveillance room in the park?" Xiao Xiao couldn't help asking after hearing Qiao Shiyi's deduction.

Qiao Shiyi thought for a while, then shook his head: "No, the person who went to the monitoring room to delete the monitoring may not be the murderer. We play hide and seek."

After some explanations, everyone was stunned. So, who is the murderer?

"However, the person who deleted the monitoring must have had contact with the murderer." Qiao Shiyi said this when everyone's minds were in a fog.

"Xiao Xiao, Su Cheng went to the homes of the three deceased to inquire about their recent basic situation, Boyan, come with me to the park again!"

As soon as Qiao Shiyi finished speaking, she took Long Boyan to the parking lot and drove. Xiao Xiao looked at Su Cheng, but unexpectedly, Su Cheng didn't even look at herself, turned around and walked out of the police station.

"What's wrong with this girl?" Since that night, Su Cheng didn't care about himself!This made Xiao Xiao, who was usually entangled helplessly by Su Cheng, a little uncomfortable.

Here, as soon as Qiao Shiyi got into the car, the door of the passenger seat was opened, but the person who got in was not Long Boyan.

"Qin Fayi? What are you doing here?" Qiao Shiyi was a little surprised. He was going out to do business. What was Qin Qianshu doing with him?

"Follow you to get down to business. Maybe I can be useful?" Qin Qianshu fastened her seat belt on her own, then turned her head to look at Qin Qianshu with a harmless expression.

"Yes, captain, Qin Fayi is following us, maybe it can be of great help, but it may not be possible!" Long Boyan suddenly popped up from the back seat and said good things for Qin Qianshu. Qiao Shiyi gave Long Boyan a white look, and then said nothing. Drive towards Ice Lake Park.

About 15 minutes later, Qiao Shiyi and his group came to the park. Because of this case, there were very few tourists in the park at this time. When the staff saw the police, they didn't show a good face. No accurate information has been given yet, let alone the owner of the park, all the employees are having a hard time.

Qiao Shiyi didn't care about the staff's attitude, and directly said that she was going to the monitoring room, and the staff took the three of them to the monitoring room.

The monitoring room is not big. Every day, two people take turns to change shifts. There are only four people who go to work in a week, and they are on duty on odd and even days.

"I want to talk to the four people on duty!" Qiao Shiyi got straight to the point when he arrived. The boss thought about it and called the other two staff members on duty.