Maybe I didn't sleep well at night, but when Brother Wu Yu came in the morning, he actually waited for me for half an hour. I was embarrassed to say to Wu Yu, "Brother Yu is sorry. Yesterday was a bad rest. ”

Wu Yu looked at me who was not energetic and said, "Seeing that you have no energy, why don't I go to Changchun Park by myself today!" ”

"How's that going to work? No problem. Let's go! ”

Wu Yu looked at me and finally took me with him.

I said to the rainforest, "Take care of the house, and if there is anything I need your help with, I will call you as soon as possible." ”

Rainforest said, "Don't worry. Leave the family to me. ”

Brother Wu Yu drove me to the south gate of Changchun Park.

After getting out of the car, Brother Wu Yu pointed to a community across the road and said, "Go ahead." See that neighborhood? ”

"Hmm. What's wrong Brother Yu, do you think there's a problem with that community? ”

Wu Yu said: "No! That community is the house rented by Mo Ziyan and Su Yamei. ”

"Really? It looks like they're pretty close. ”

Wu Yu said: "Let's go!" Let's go to the crime scene of Meng Nan's body! ”

Brother Wu Yu took me to the scene of the crime.

I observed carefully, Wu Yu pointed with his finger and said, "This is where Meng Nan's body was found." ”

I saw that the grass here was clearly the place where a person's body had been pressed down. There were still some dried blood stains on the ground. Less than 300 meters to the right of the meadow, there is a small lake. There was also a small bridge where we had just passed. And that small bridge is the only way to the south gate.

I watched it carefully for a while. He didn't speak, and although Brother Wu Yu also observed for a while, he didn't find anything. He just stared at me blankly.

At this time, I said, "Brother Yu, if I am a murderer. You know what I'm thinking? ”

Wu Yu said: "What do you think." ”

"For example, what do I do with the murder weapon?"

Wu Yu said: "What do you mean?" ”

"Brother Yu, I took a closer look at the welcome around me, and assumed that I was a murderer. I inadvertently smashed Monnan's skull with a stone. There will definitely be my fingerprints on this stone. ”

Wu Yu said: "Yes." But go ahead, look at what rocks are there. ”

"Probably not a stone. Maybe something hard or something. ”

Wu Yu said: "Ah. I didn't expect the police to have such a loophole. I remember when we came to the scene of the crime that day, there were some small gravel in the grass. When I wrote the record, I thought that the murderer had killed people with stones. Now that I think about it, it is very likely that Meng Nan was not stoned to death. ”

"It may be some kind of hard object, assuming that the murderers are Mo Ziyan and Su Yamei, playing in the detective agency that day. They can't have anything them or in their bags. So the only explanation is that those murder weapons may have been taken near Changchun Park, and they were casually on Meng Nan's head. ”

Wu Yu touched his chin and thought, "What could it be?" If it wasn't a stone, why would the forensic examiner find some dirt on Meng Nan's head? What hard stuff can get together with dirt? ”

I looked around for a long time. There is a public toilet less than 100 meters to the east. When I see the public toilets, my eyes light up.

I said to Wu Yu, "Brother Yu. . . Look there. ”

I pointed to the public toilet in the east, and Wu Yu saw it. He said to me, "Go ahead, you're suspicious of the toilet." ”

"Let's go check it out first!"

Wu Yu and I came to the vicinity of the public toilet, and we walked around the public toilet twice. However, no hard objects such as stones were found.

Wu Yu said: "There is nothing hard about this." ”

"Not necessarily. Brother Yu, look here. ”

I pointed in the direction of the right door of the public toilet, and Wu Yu followed my finger.

It turns out that there are some traces left by red bricks here. This kind of brick is basically used for decoration. Good thing this public toilet has a caretaker.

Wu Yu called the administrator of the public toilet out. The caretaker here is an old man in his fifties.

Wu Yu asked at the administrator, "Old man, let me ask." Didn't there be some red bricks in here before? ”

The administrator looked at Wu Yu and said angrily to me and Wu Yu, "Who are you?" What does it matter to you whether we have bricks here or not? ”

I don't know what kind of gunpowder this old man ate, his face was very heavy, and he spoke more urgently. You're very polite to talk to us. I guess they treat me and Wu Yu as bad guys.

I smiled in my heart: I didn't expect the old man to be so old and so short-tempered. I don't like to communicate with strangers at all.

Wu Yu looked at the old man and smiled. In desperation, Wu Yu took out his police ID card and said to the administrator: "Police, it's okay to ask." ”

The administrator looked at the police officer card in Wu Yu's hand, and quickly changed his attitude. Although it wasn't with a smile on his face, the momentum just now was gone.

The administrator said to Wu Yu: "Ah! I guess it must be the man from two days ago! ”

Wu Yu said to the old man: "Old man, you are the administrator here!" ”

The old man replied, "Yes." But I just watched the toilet during the day, and at night I went home. That dead boy has nothing to do with me. ”

Wu Yu felt funny when he heard this old man speak. Wu Yu hurriedly explained: "Old man, our police are not suspicious of you. I just wanted to ask you, I think you really want to let go of the red bricks at the door. ”

The Administrator said, "yes." The back wall of our toilet needed to be repaired. So there are dozens of red bricks here. It is mainly used to repair walls. ”

Wu Yu said: "Yes! Why is it gone now? ”

The administrator said: "Yesterday, the better repair was completed, and the bricks naturally ran out." ”

I looked at the caretaker and said, "Old man, I want to ask when this brick was placed at the door of your toilet." ”

The administrator thought for a moment and said to me, "I think it's been four or five days!" No one has come to repair the walls, so I left it for five days! It was just patched up yesterday. ”

I looked at Wu Yu, and Wu Yu said to the administrator, "Thank you, old man." It's okay... ”

Wu Yu asked the old man to continue to busy his business. And Wu Yu and I walked to the meadow.

"Brother Yu, according to the tips of the environment, if I am the murderer, I will definitely kill Meng Nan with a brick at any time. This also explains why Meng Nan has dirt on his head. ”

Wu Yu said: "It's possible!" But after killing someone, maybe the bricks have been pressed into the wall. ”

"It's possible if I'm a murderer. I'm not going to put the bricks back in their place, because the police will come the next day to collect evidence. That's dangerous. ”

Wu Yu said: "Forward, then what do you mean?" ”

"If it were me. I stood on the bridge and threw a stone into the lake, unaware of it in the middle of the night... ”

As I spoke, I pointed to the small bridge where I came.

Wu Yu looked at me and said to me, "It's very likely... ”