M: "Do you think the men outside the courtyard gate really didn't notice us?" The house was brightly lit, and no matter how much it was hidden, it would be exposed, and there was such a loud noise in the house at the time of the crime, although they had headphones stuffed in their ears, I think the sound of the crime should have reached their ears, especially the sound of me kicking the broken glass. Teacher Jin said.

"I've found out since just now, and I think those people are standing at the gate of Lao Hei's courtyard as if they have some purpose, they look like they're guarding this courtyard, what do you think?" Xu Tian analyzed.

"It makes sense, so they didn't run into the house when they heard the movement in the house and saw our shadows, because they knew something was going to happen in the old black house, and it must be like this." Teacher Jin said.

"And this row of bloody footprints, plus the front door that was opened, don't you think that's a little strange at that?" Xu Tian said.

"It's probably a trap, the main thing is that when we were resting in the backyard house, the lights suddenly turned on in the old black house, and then we saw blood splashing on the glass, and then when we chased after us, a dog's head was thrown on the glass, this action can prompt us to break into the house faster, no, we seem to have fallen for the murderer's plan again." Teacher Jin said.

"As soon as we came in, you ran to the front door to take a look, I was in this kitchen all the time, and Yang Qi was still standing on the wall of the backyard, so to speak, the whole house was within our surveillance, but the murderer still escaped." Xu Tian said.

"Come to think of it, there must be a loophole in this, what is it?" Teacher Jin lit a cigarette and said.

Xu Tian and Teacher Jin entered into thinking together, and the two looked at the roof in unison.

"I see, it was the same when Lao Li was killed." Xu Tian said.

"Yang Qi should be able to see the roof on the wall, and the roof of Lao Li's house was also in our sight at that time, but we overlooked one thing." Teacher Jin spat out the smoke ring and said.

"That's right, in fact, there is a blind spot on the roof, whether we were standing on the high slope outside when Lao Li was killed, or Yangqi standing on the wall, if the murderer did not stand on the roof, but stuck to the eaves on the side that no one was staring at and walked on his stomach, so that we would not be discovered, and the same is true of this crime scene, although the wall of Yangqi Station belongs to a higher place, but after all, the wall is not as high as the house, and Yangqi's height will not exceed the house, Yang Qi's line of sight was absolutely impossible to see above the eaves on the side of the front yard of Lao Hei's house. Xu Tian said.

After listening to Xu Tian's inference, Mr. Jin immediately began to look for a place on the roof to climb to the roof, and finally found a vent outside the warehouse of Lao Hei's house, and took down the iron mesh of the vent to open a hole in the roof.

"Strange, why does the house have this design? Aren't you afraid of leaking rain? Teacher Jin said suspiciously.

"I see, it's a woman! If you think about it, there are women in this village, but these men live alone in the front street, and it seems that the men and women in the whole village have no dealings, and even feel as if the men and women have some deep hatred. But is that really the case? Do men really reject women? And will women really leave men? Xu Tian said.

"Of course not, but the current situation in their circle is that men and women can't interact, so some people make a gap in their houses to provide a channel to contact women, but why doesn't Lao Hei just open the back door?" Teacher Jin said.

"This can only show that Li Suqing, who lives in the backyard of Lao Hei's house, is not Lao Hei's friend, and the woman who met Lao Hei wants to avoid Li Suqing's sight, the best way is to enter Laihei's house from the roof or underground, but the underground obviously doesn't work, because this kind of rural house needs to lay a foundation, there can be no basement, and their situation is unlikely to have extra money to build a basement, so they can only sneak in from the roof." Xu Tian said.

Teacher Jin found a plastic stool, climbed it and pushed open the iron door on the roof, and ran up neatly.

As soon as he climbed to the roof, Mr. Jin smelled a sour smell, as if a bottle of old vinegar was sprinkled on the roof, but when Mr. Jin turned on the flashlight function of the mobile phone, it turned out that there was a sour and sour stinky sock on the roof, and the sour smell was old vinegar! It's all the smell of this stinky sock.

However, Mr. Jin still took out a tissue from his pocket and carefully wrapped the stinky sock.

"Xu Tian, you check the foot of the bolt to see if he lacks socks." Teacher Jin whispered into the room.

Xu Tian immediately went back to the kitchen to take off the bolt's shoes as instructed by Mr. Jin, and sure enough, the bolt's left foot was not wearing a sock.

took the stinky socks that Mr. Jin found on the roof and compared them, and it was really a plug sock.

After jumping back into the house, Mr. Jin spun around on the spot, shrugged his nose and took a deep breath, which made him feel a little better.

"The bolt climbed in from the roof?" Xu Tian said suspiciously.

"No, it's gone! It is also possible that the murderer deliberately put the socks on the roof of the house, or it is also possible that the murderer inadvertently took the socks out of the plug, and then accidentally left them on the roof when he climbed to the roof, or the murderer found the socks on his body after climbing to the roof, pulled them off and threw them on the roof. Teacher Jin said.

"Are you all right?" Xiao Ai's voice suddenly came in from outside the window.

Xu Tian looked out the window, Xiao Ai was standing outside the back window with her hair draped and wearing pajamas, with the dim moonlight, Xiao Ai looked like a black cat, especially Xiao Ai's black pajamas and long black hair were the most eye-catching.

"Come out of here! Sister Li seems to have something to say to you. After Xiao Ai finished speaking, he turned around and walked towards the base of the wall.

Yang Qi helped Xiao Ai climb over the brick wall, and the two walked back to Li Suqing's house together, at this time Xu Tian and Teacher Jin did hear the sound of talking from the front yard of Lao Hei's house, as if someone had walked in, and the two had to listen to Xiao Ai's advice and quickly returned to Li Suqing's house in the back street.

"Are some of you police officers?" Li Suqing sat on the neat bed and said.

"I'm a police officer." Teacher Jin replied with a cigarette that was about to be finished.