Li Rui frowned, he wanted to do it himself, and fast-forward the search for the third time again, but he felt that there was no need for that, the two searches, the picture clips stuck by each other were staggered by five seconds, in this short five seconds, if someone really entered and exited the room or held the picture scroll, it would definitely be displayed on the video screen, and now there is nothing to find, it can only be said that no one has entered his room, but the question is, if no one enters or leaves the room, how did the painting be lost?

Li Rui was secretly worried in his heart, seeing that there was no point in staying any longer, so he said goodbye to the security guard, turned around and walked out of the security room, and climbed the stairs back to the guest room.

The staircase of the guest house, at the corner of each staircase, that is, on the shady side, has a window open. When Li Rui passed by, he glanced at the window casually, and when he turned around and climbed up, he suddenly thought of something, looked back at the window, looked at it twice, raised his hand and patted his head, and scolded: "Damn, why didn't I think of this?!"

His face changed instantly, and he quickened his pace and ran up to the second floor, came out of the stairwell, ran to his room, and went straight to the window after entering the house. The curtains in front of the windows are tightly closed, probably to protect them from the sun. He pulled the curtains with both hands, and when he stared, sure enough, the left and right windows were not locked, and now they were only covered.

It turned out that when he saw the open window on the dark side in the stairwell just now, it suddenly occurred to him that the painting must have been stolen by someone, since the thief did not enter through the main entrance, it must have entered through the back door, and for the room in the guest house, the back door is the window, so he urgently ran back to check, and now he saw that the window was not locked, and he confirmed more and more that the thief probably jumped in from the window.

He leaned close to the windowsill and looked up with wide eyes to see if there were any footprints left on it, but he found that there were no footprints on it, but there were particles of dust and sand that could be observed with the naked eye, and those dust and sand particles did not occupy a large area.

"I understood that the thief had a lot of experience in counter-reconnaissance, and when he jumped out of the window, he deliberately wiped the footprints left on the windowsill with something, but he only removed the footprints, but did not remove the dust and sand particles carried 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, wanting to see if there were the same traces left on the windowsill outside, but his hand was about to touch the window button, and suddenly it occurred to him that he couldn't do this, because if he touched the window button with his hand, it would destroy the fingerprints that the thief might leave on it, if he couldn't solve the case and needed to call the police after a while, then the police would also need these clues to solve the case.

He looked out the window, this window had no balcony, and the outside was half empty on the second floor, but when he looked down, he found a new world, and a meter below was the huge semi-open square porch of this guest house.

"Ah, I said how the thief climbed up to the windowsill on the second floor, and dared to use this porch, which had a roof, and he stepped on it, and leaned in front of my window, and the height of a meter from the windowsill seemed to him nothing, and naturally he easily jumped out of the window and entered the room. And the top of the porch has been dusty and rainy all the year round, and there is a thin layer of dirt and sand, and the thief's shoes are stepped on and some of them are stained, so they will remain on the windowsill. ”

Li Rui deduced this, secretly admired the thief's cunning and cleverness, thought about it, and decided to see how the thief climbed onto the porch, maybe he could find the identity and traces of the thief, so he turned around and walked out of the room, went downstairs and walked out of the guest house, stood outside the porch and looked at the semi-open porch.

The portico was wide, almost six or seven meters wide and three meters high, with a door on one side and an empty door on three sides, and there was nothing on three sides to climb on. There are two thick pillars on the outside of the porch, but the surface of the pillars is smooth and round, and it is impossible for people to climb up, not to mention that people at the door of the guest house enter and exit, and it is impossible for anyone to openly climb the pillars. The top of the porch spans the three rooms on the second floor, of which the windows in 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 spanned each. Li Rui's room is the room in the middle.

Looking at the details of this porch, Li Rui has already come to a conclusion in his heart that it is impossible for a thief to climb to the top of the porch from below, in other words, the thief went down to the top of the porch from the window above the second floor.

Li Rui raised his eyes to look at the details of the porch, needless to say, the top of the porch is one meter high, it is the window of the room on the second floor, which is the closest to the top of the porch, and it is the entrance that the thief is most likely to choose, and from the window of the room on the second floor to the top of the room on the third floor, it is the window of the room on the third floor, there is no anti-theft fence outside the window, and there is no air conditioning unit, the wall is covered with mosaic tiles, smooth as a mirror, it is easy for the thief to jump down, but it is basically impossible to climb back, but the thief can choose to jump from the top of the porch to the ground to escape, therefore, the window of the third-floor room is also a possible way for the thief to enter and exit。

Li Rui decided to start from the three rooms on the second floor facing the porch, after all, the probability of thieves 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 side of the porch, he clearly remembered that the room on the left side of his room lived in the cadres of the Qingyang Municipal Education Bureau who came with him, not to mention that they didn't know the existence and value of this painting at all, even if they knew, they would definitely not have a thief's heart.

Li Rui squinted his eyes and turned his head to look at the room on the right, the windows in that room were closed, the curtains were hung, and there was no light in the dark, which was also reasonable, if the thief really jumped out of that room, then he would definitely have escaped long ago after he succeeded, how could he stay and be caught and seized? Therefore, there was no need to go to that room and knock on the door to inquire.

It can also be deduced that after the thief succeeded, he did not return to the room, and even if he returned to the room, he did not escape from the main entrance of the room, because on the surveillance video that he had previously reviewed, there was no person with an object that looked like a picture scroll in and out of the corridor, that is to say, after the thief succeeded, he jumped 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 stayed in the room on the right, and the person was likely to be a thief, but he was a little hesitant, whether to go to the front desk to ask for the guest's information, or to go to the security room again, and find the security guard to look at the surveillance video of the guest, after thinking for a while, he felt that the front desk lady might not tell herself, but she would be suspicious of herself, it was better to find the security guard again, at least it was an acquaintance, it was easier to find him, and after thinking about this, he returned to the building and ran to the security room.

"Hey, why are you back again?"

There is still only that security guard in the security room, and it seems that he is right before, he is the only one on duty tonight.

Li Rui laughed and whispered: "Oh, brother, I have to ask you for a favor again, help me adjust the video in the lobby on the next floor, it is still from the previous time period." My colleague told me that a man with a long paper roll had picked up my keys and wanted to make sure he didn't live in the building. ”

Li Rui has already thought that if the thief has ever entered the room on the right side of his room, then he must have opened the room, and he will check out when he opens the room, if he dares to slip away without checking out, it is easy to be suspected by the guest house and the police after the incident, so after he steals the painting, he will definitely return to the lobby on the first floor to check out, so now he needs this security guard to cooperate, call up the surveillance video of the lobby on the first floor, and look for a man holding a picture scroll.

The security guard was embarrassed and said: "Oh, I've already transferred the surveillance video to you twice, why are you still not satisfied, you want me to be criticized by the leader?"

Li Rui smiled and said, "Good brother, do me a favor, I beg you, I have time to go back, I will invite you to dinner." ”

The security guard was just embarrassed, and when he insisted, he agreed, and said, "Okay, it's the last time, it's really not okay to come again." ”

He returned to his workstation, operated the mouse, found the surveillance video in the lobby on the first floor, selected two videos from six to half past seven, and began to fast-forward to view.

Li Rui was soon disappointed again, from the two surveillance videos, he didn't see any people who appeared in the lobby or entered and exited the door with a picture scroll in hand, he wondered in his heart, could it be that his reasoning was wrong? After the thief succeeded, he left directly, and did not come back to check out at all? Thinking of this, he couldn't help but hesitate, suspecting that he had reasoned wrong from the beginning.

"Ah...... Leaked, leaked!"

Li Rui suddenly thought of something, and exclaimed, which startled the security guard.

What Li Rui thought of was, after the thief got his hands on it, how could he go around with the stolen goods? For fear that others would not suspect him? His most instinctive idea would be to hide the painting first, and then go to check out, and it is easy to hide the painting, and when people are unprepared, put the painting in the bushes or under the root of the wall, and the black light will blind the fire, how can outsiders see it? If the thief came by car, it would be even simpler, then after he stole the painting and jumped from the top of the porch to the ground, he just put the painting in the car, and then returned to the lobby to check out, who knows what he had done before?

Realizing this, Li Rui was very excited, and asked the security guard: "There are surveillance cameras outside the building, right?

The security guard said with a bitter face: "Big brother, do you want to see the surveillance video outside the building again?"

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

The security guard was kind, he had already taken two packs of good cigarettes from him, and was embarrassed to charge him again, and said: "Okay, I'll help you one last time, there really can't be a next time, I've already violated discipline, and I'll be finished when the leader knows about me." ”