Minutes and seconds passed, and by the afternoon the victim had not yet shown any signs of waking up.

Xu Sa made a cup of coffee for Su Tong, but she politely refused.

"I'll drink tea, thank you."

As soon as she finished speaking, Xu Sa was about to make tea for her, but she was immediately stopped by her.

"I brought my own, thank you."

Su Tong's polite and detached appearance made Xu Sa a little disappointed, but he still hid his emotions and chatted with her about the case.

"The victim probably won't wake up for a while, and I think we should change directions."

Su Tong picked up his thermos cup, took a sip of hot tea, looked at him calmly, and motioned for him to continue.

"Let's put the victim's side aside first, let's think about this case, what is the possible identity of the murderer?"

"The only people who can enter the hotel without knowing it, except for the manager, are the only ones left at the front desk." Su Tong listed the suspicious identities one by one.

Obviously, the manager and the front desk are very suspicious, they all have colleagues during working hours, and if they disappear for too long, they can be easily discovered.

And it is not known to transport a person, such a big thing to the hotel, except for the cleaner pushing the cleaning cart is not easy to be found, other methods are easy to detect, so the biggest suspect is the cleaner.

Lin Mei's key was lost in the hotel, and the person most likely to pick it up was also a cleaner.

Thinking of this, the two had the direction of investigation.

They went to the five hotels where the incident occurred together, investigated and inquired one by one, and as expected, all five hotels outsourced the cleaning work to the same housekeeping company.

Su Tong Xu Sa drove to the housekeeping company again and asked the manager to type out the attendance sheet in detail these days.

They found that the attendance was regularly arranged, and in the past few days of the accident, it was not the same person who cleaned the hotel.

"Isn't it a cleaner?" Su Tong was a little puzzled.

Xu Sa took the form and looked at it again and again, shaking his head.

"Not necessarily, it may be that the employee has changed shifts privately, or someone may have mixed in with the cleaners, but I still tend to change shifts, after all, the case has happened more than once, and it is unlikely that the murderer has been mixed in so many times."

"If it's a shift change, then we have to check the cleaners of the whole company one by one."

Xu Sa told the manager about his appeal, but unfortunately the manager politely refused.

"Officer, look at the hundreds of employees up and down our company, if all of them stop working with you, how much money will we lose this day?" The manager looked very embarrassed.

He's right, but the investigation has to continue.

"We won't take you too long, please be considerate." Su Tong pleaded sincerely.

The manager was still hesitant and finally ran to make a call to the boss and came back a few minutes later.

"The boss said that although our cleaners can enter the hotel room, every time they go in to clean, they need to contact the front desk to arrange and open the door card permission. You can check whether there is a record of open key cards at the front desk at the time of the incident. ”

The method he proposed was indeed feasible, but after calling the hotel front desk, they said that on the night of the crime, no cleaning staff came, so the door card permission was not opened.

A clue that was finally found was interrupted again.

"Maybe we can try to find the logic of whether the murderer's crime was random or premeditated. If there is a premeditation, what do the targets he chooses to commit crimes have in common? ”

Su Tong tried to find patterns from the victims, but they had already done such reasoning before, and came to the conclusion that there was little in common except that the gender was female.

"In addition to people, can we also find common ground in hotels?" Xu Sa thought of this.

Since the victim is random, why did the murderer go to great lengths to get the victim to the hotel after knocking him unconscious, is there some kind of connection between the hotel rooms?

They then went through the rooms of the hotel, took pictures of various places in great detail, and took them back to do it right one by one.

"Did the photo come out?" Xu Sa asked Zhou Li.

Zhou Li immediately called to inquire, and took it after a while.

He put the picture on the wall, and everyone was holding it on top of it, trying to find out what was different or the same.

"There are bathtubs at the scene of the crime." Chen Hui said.

"It's all five-star hotels." Zhou Li added.

"Is there anything else besides?"

The crowd didn't say anything more, only shook their heads slightly.

At this time, He Xingchen poked his head and raised his hand cautiously.

When Xu Sa saw it, he asked him to stand up and speak.

"Where did Wen Yan go?"

As soon as he said this, everyone realized that it seemed that they hadn't seen Wen Yan for a long time, and he hadn't appeared since the meeting a few days ago.

Li Hua suddenly pointed to a photo and shouted, "Isn't W the beginning of the Wen Yan letter?" ”

For a moment, the room fell into a deathly silence, but after a few seconds, an even more heated discussion erupted.

Everyone's conversation began to shift to Wen Yan, and some people even began to joke about the suspicion that this case was related to him.

Su Tong was very unhappy when he heard this, and immediately stood up to speak for him.

"Wen Yan and I grew up with me, I know best what kind of person he is, he can't have anything to do with the case!"

Su Tong's categorical appearance made everyone obediently shut up, but Xu Sa's face gradually sank.

"We're just rationally discussing, and you're reacting too much." Xu Sa said expressionlessly.

Su Tong turned his head, stared at him intently, and said word by word: "The discussion should be based on evidence, not random speculation like just now, you say that I don't care about others, but I don't allow Wen Yan." ”

Xu Sa looked at her back and didn't speak again.

Everyone also noticed that the atmosphere was wrong, and Chen Hui immediately came out to play a round.

"Okay, okay, what a big deal, Wen Yan may have something important to deal with, let's continue to talk about the case."

But Xu Sa didn't answer the steps given by Chen Hui, but instead said to Su Tong in a commanding tone: "You call Wen Yan." ”

If it was a good thing to say it, let her call Wen Yan, Su Tong would never shirk it, but this kind of commanding tone, she was really uncomfortable to listen to.

"Why should I fight?" She held her head high.

"Don't you dare?" Xu Sa's eyes were filled with danger.

In the end, Su Tong still fought, and Wen Yan quickly picked up.

"Hey, what's wrong with Kiritoro?" His voice was weak and heavily nasal.

"You have a cold?"

"Hmm."

"Why didn't you tell me?"

"You have something to do, I don't want to trouble you, and it's not a serious illness, just rest for a while."

His intimacy touched everyone present, except for Xu Sa.