Li Rui frowned and wanted to do it himself. Fast forward and search the third time again, but he felt that there was no need. After searching twice, the clips stuck between each other were staggered for five seconds. In just five seconds, if someone really entered and exited the room or held a scroll in his hand, it would definitely be displayed on the video screen. No discovery now can only mean that no one has entered his room, but the problem is, if no one has entered and exited the room, how was that painting lost?

Li Rui was secretly worried. Seeing that it was meaningless to stay any longer, he said goodbye to the security guard, turned around and walked out of the security room, climbed the stairs and returned to the guest room.

The stairs of the guesthouse were at the corner of each staircase, that is, the dark side, with a window open. When Li Rui passed by, he glanced at the window casually. When he turned around and climbed up, he suddenly thought of something. He looked back at the window, looked at it twice, raised his hand and slapped his forehead, and cursed: "Damn, why didn't I think of this?!"

His face changed instantly. He accelerated his pace to run to the second floor, came out of the stairwell, ran towards his room, and went straight to the window after entering the room. The curtains in front of the window were closed tightly, probably for the sake of preventing sunlight. He pulled the curtains with both hands and pulled them open. When he looked at them, sure enough, the left and right windows were not locked, and now they are just in a state of concealment.

It turned out that when he saw the open window on the shade in the stairwell just now, he suddenly thought that the painting must have been stolen. Since the thief did not enter through the main entrance, he must have entered through the back door. For the guest room, the back door is a window, so he ran back to check it out urgently. Seeing that the window was not locked, he became more and more confirmed that the thief might have jumped in through the window.

He leaned closer to the windowsill and looked up at it with wide eyes, trying to see if there were any footprints on it, but he found that there were no footprints on it, but there were dust particles that could be observed with the naked eye, and the dust particles occupied not much area.

"I understand that the thief has rich anti-reconnaissance experience. When he jumped out of the window, he deliberately wiped the footprints left on the windowsill with something. However, he only cleared the footprints, but did not remove the dust particles brought by the soles of his shoes."

Li Rui was very excited when he thought of this. He raised his hand and wanted to open the window to see if there were the same marks on the window sill outside. But his hand was almost touching the window button. Suddenly, he thought that this would not work, because touching the window button by his hand would destroy the fingerprints that the thief might have left on it. If he couldn't solve the case, he needed to call the police after a while, then the police would still need these clues to solve the case. Thinking of this, he retracted his hand.

He leaned out the window and looked out. There was no balcony in the window, and the second floor was half-air outside. But looking down, he found a new world. It turned out that one meter away below was the huge semi-open square porch of the guesthouse.

"Ah, I told you how the thief climbed to the windowsill on the second floor. It turned out that it was with the help of this porch. The porch had a roof. He stepped on it and approached my window. One meter away from the windowsill was like nothing to him. Naturally, he easily jumped into the window and entered the room. The top of the porch had accumulated dust and rain all year round, and there was a thin layer of soil and sand. The thief's shoes were stepped on it and were covered with part of it, so they would stay on the windowsill."

Li Rui inferred that this place, secretly admired the thief's cunning and cleverness. After thinking about it, he decided to see how the thief climbed onto the porch. Maybe he could use this to discover the identity and trace of the thief. He turned around and walked out of the guesthouse, stood outside the porch and looked at the semi-open porch. He didn't know it, but he found it again after seeing it.

The porch is very wide, about six or seven meters wide, three meters high, one side is the building door, three sides are empty, and there is no object on three sides to climb up. There are two thick pillars that are not badly wrapped around the porch, but the surface of the pillars is smooth and round, so it is impossible for people to climb up, let alone people enter and exit the guesthouse door, and it is impossible for someone to climb the pillars openly. The top of the porch spans the three rooms on the second floor, and the windows of the middle room are all within the span of the porch, and the windows of the two rooms on the left and right are only half of them. Li Rui's room is the room in the middle.

After looking at the details of the porch, Li Rui had already come to a conclusion in his mind that it is impossible for a thief to climb from below to the top of the porch. In other words, the thief to go down from the window above the second floor to the top of the porch.

Li Rui raised his eyes and looked at the detailed environment on the porch. Needless to say, one meter high above the porch, it is the window of the second floor room, closest to the top of the porch, and is the entrance that the thief is most likely to choose. From the window of the second floor room, it is the window of the third floor room. There is no anti-theft railing installed outside the window, nor is there an air-conditioning unit. The walls are covered with mosaic tiles, which are as smooth as mirrors. It is easy for thieves to jump off, but it is basically impossible to climb back. However, thieves can choose to jump from the top of the porch to the ground to escape. Therefore, the windows of the third floor room are also the possible way for thieves to enter and exit.

Li Rui decided to check the three rooms opposite the porch on the second floor. After all, the probability of a thief going down from the window on the second floor to the top of the porch is higher. He turned his eyes to look at the room on the left of the porch. He clearly remembered that the room on the left of his room was a Qingyang Education Bureau cadre who came here with him. Not to mention that they didn't know the existence and value of this painting, even if they knew it, they would never have a thief.

Li Rui narrowed his eyes and turned to look at the room on the right. The windows in the room were closed and the curtains were hanging, and there was no light inside. This was reasonable. If the thief really jumped out of that room, he would have escaped after he succeeded. How could he stay and be caught and caught? Therefore, there was no need to knock on the door to inquire.

It can be further inferred that after the thief succeeded, he did not return to the room. Even if he went back to the room, he did not escape from the main entrance of the room, because on the surveillance video I had watched before, no one with a scroll-like object entered and exited the corridor. In other words, after the thief succeeded, he jumped down from the top of the porch, jumped directly to the ground, and easily left the scene.

After Li Rui analyzed these contents, he decided to start investigating the tenant who had been staying in the room on the right. The person was probably a thief, but hesitated a little. He went to the front desk to ask about the information of the guest, or to go to the security room to check the surveillance video about the guest. After thinking for a while, he felt that the front desk lady might not tell her, but would still be suspicious of him. It would be better to go to the security guard again, at least he was an acquaintance, and it would be easier to find him. When he figured out this, he went back to the building and rushed to the security room.

"Hey, why are you back?"

There was still only the security guard in the security room. It seemed that he was right before. He was the only one on duty tonight.

Li Rui laughed and said in a low voice: "Oh, brother, I have to ask you to help me check the video of the lobby on the next floor, which was from the previous period. My colleague told me that a man with a long scroll of paper picked up my keys and I wanted to confirm whether he lives in this building."

Li Rui had already thought that if a thief had entered the room on the right side of his room, he would have to check out the room, and he would have to check out after the room. He would have to escape without checking out. After the incident, he would easily be suspected by the guesthouse and the police. Therefore, after he succeeded in the secret painting, he would definitely go back to the first floor lobby to check out. Therefore, the security guard now needs to cooperate and call out the surveillance video of the first floor lobby to find a man holding a scroll.

The security guard said in embarrassment: "Oh, I have already adjusted the surveillance video for you twice. Why are you not satisfied? Do you want me to be criticized by the leader?"

Li Rui smiled and said, "Good brother, please do a favor. I beg you. If you have time, I will treat you to dinner."

The security guard just made a difficult move. Seeing that he insisted, he agreed and said, "Okay, it's the last time, it's really not possible to come again."

He returned to the work station, operated his mouse, found the surveillance video in the lobby on the first floor, and selected two videos from 6:00 to 7:30 from it, and began to fast forward to view it.

Li Rui was soon disappointed again. From the two surveillance videos, he didn't see any person holding a scroll appearing in the lobby or entering and leaving the door. He was very surprised. Did he make a mistake in reasoning? The thief left directly after succeeding and did not come back to check out at all? Thinking of this, he couldn't help but hesitate and suspected that he had made mistakes in reasoning from the beginning.

"Ah... it's leaking!"

Li Rui suddenly thought of something and exclaimed in surprise, which scared the security guard.

What Li Rui thought of was how could the thief appear everywhere with the stolen goods after he succeeded? He was afraid that others would not doubt him? His most instinctive idea would be to hide the painting first and then check out. It would be easy to hide the painting. When people were unprepared, they put the painting in the bushes or under the wall. It was dark and dark, so how could outsiders see it? If the thief drove, it would be even simpler. Then he could jump from the top of the porch to the ground, and then put the painting in the car, and then go back to the lobby to check out. Who knows what he had done before?

Seeing this, Li Rui was very excited and asked the security guard: "Is there a surveillance camera outside the building? It's facing the left and right of the porch?"

The security guard said with a bitter face: "Brother, do you want to watch the surveillance video outside the building again? Are you still going to finish it?"

Li Rui took out his wallet, took out two hundred yuan from it, and handed it over and said, "Big brother, help me, the last time, I'm begging you."

The security guard was kind enough to take two packs of his cigarettes, and was embarrassed to take his money again, saying, "Okay, I'll help you for the last time. I really can't have another next time. I've violated discipline and I'll be finished if the leader knows me."
Chapter completed!