After a while, Yang Yunwen rushed over and conducted an all-round search of the hotel, but there were no clues at all, and the murder weapon was not found. And the bathroom is not monitored, and I don't know who has been in, which is more troublesome.

Li Haorui sat and ate slowly, as if there was no case here.

Only then did he stand up when the meal was finished: "The murderer must have come alone." Have everyone sit in their seats at the time of the crime. ”

After Li Haorui finished speaking, a glimmer of light flashed in Su Muqing's eyes, what a good idea!

But after sitting according to what Li Haorui said, he found that there were only two people who came to eat alone, and they all got the proof from the next table that they had been there all the time and had never been to the bathroom.

"If it's not a customer, it's a waiter, or...... That man is long gone. Li Haorui walked to an empty table: "What about the guests at this table?" ”

"I don't know, let's leave after eating." The waiter spoke.

"This one is still hot." Su Muqing tried the baking tray on the table, and the temperature.

"Is it a person?" Yang Yunwen continued to ask.

"Seems like so." The waiter spoke.

"Describe what it looks like." After Yang Yunwen finished speaking, Su Muqing looked around, there was no murder weapon? This is the barbecue restaurant on the second floor, if you go out......

Su Muqing immediately rushed to the bathroom and found that the window could be opened, and it was possible to go down the water pipe.

Yang Yunwen also went to the bathroom: "The waiter said that the person was wearing a hat, and it seemed that he came prepared." ”

"It seems like you can go down here, but I just looked down and saw no one." Su Muqing said.

"What if it's up?" Li Haorui's voice came.

"Usually people look down, but what if that person climbs up and walks up from the third or fourth floor?" As soon as Li Haorui said, Su Muqing immediately asked the waiter: "What is the corresponding upstairs here?" ”

"This building is only four floors, and the third floor seems to be a game hall, which should be the toilet of the game hall. The fourth floor is a small shop, and this is a public restroom. After the waiter finished speaking, Yang Yunwen immediately led someone upstairs.

"On the fourth floor." Li Haorui said quite calmly.

"Why?" Wang Ping asked curiously.

"The game hall is usually monitored, not to mention that there are so many people, what if someone sees him?" After Su Muqing finished speaking, Wang Ping was still a little strange: "Isn't it more possible on the fourth floor, public toilets." ”

"Because it's a public toilet, no one pays attention to each other." After Su Muqing finished speaking, Li Haorui applauded with satisfaction on the side: "It seems that the police station has brains about you and Yunwen." ”

Su Muqing snorted and was silent.

Ten minutes later, Yang Yunwen called: "The murder weapon has been found." ”

"On the fourth floor?" Su Muqing asked rhetorically.

"Hmm." Yang Yunwen hung up the phone, and Su Muqing rushed over.

Tan Ruoyu greeted Su Muqing when he rushed over: "I'll go back to the police station for an autopsy first." ”

"Hmm. Let me know the results. After Su Muqing finished speaking, Tan Ruoyu walked out.

Su Muqing went upstairs and saw the blood-stained dagger in Yang Yunwen's hand, he put it in the evidence bag, and went back to see if there were any fingerprints.

"This mall should be monitored." Su Muqing looked around and asked.

"There is a hall on the first floor." Hao Ming said on the side.

"That aisle should have a camera, too." Hao Ming pointed to the place of the escalator.

"You seem familiar?" Yang Yunwen asked.