Swenjie belongs to the type that is very shy and not good at words, but among children, he should belong to the kind of boy who is more attentive, and he provides a very important situation.

On the afternoon of the day of the incident, after school, Shi Wenjie went to the commissary at the school gate to buy two pencils, two exercise books, and a leather eraser, so he did not go home with Chen Qidi and Dong Xiaoqian.

Chen Jie caught something from Shi Wenjie's words: "Shi Wenjie, when you go home - when you go upstairs, do you meet anyone who hurries downstairs?" ”

Shi Wenjie frowned, and said thoughtfully: "When I went upstairs, I met a person at the turn of the stairs, and he went downstairs so fast that he almost hit me. ”

"The bend of the stairs? At the turn of what floor? ”

"At the first turn."

The "first turn" is the turn between the first and second floors.

"Do you know this person?"

"I can't see clearly."

"Can't see clearly? Is it dark at the turn of the stairs? ”

It was raining at the time, so that could have been.

"The man was wearing a raincoat, and the hat of the raincoat covered most of his face."

Is the information provided by Swenjie very important? Definitely. But after listening to the conversation between Shi Wenjie and Chen Jie, we have to express regret.

This person is most likely the murderer of Mr. Ma's family of three, wearing a raincoat and covering his face with a raincoat hat, just for fear that others will recognize him.

From this, it can be seen that the murderer's face is a familiar face in the eyes of the residents of Unit 3. There are people going up and down the stairs at any time, and the murderer is afraid that others will recognize him.

Common sense tells us that if an upstairs resident goes downstairs, the raincoat should be on the arm before walking out of the staircase, and the raincoat will only be worn on the body when walking out of the staircase.

"What color raincoat is this person wearing?"

"What color raincoat? I don't remember. ”

It's no wonder that the time is too short, and it's a child of about ten years old.

"The hat of the raincoat covers most of the face, and the exposed part, do you see it?"

"At the turn of the stairs, that is, there was a flash, and I was just going up the stairs and didn't care."

"Does this person have anything on his hand - something like a bag?"

260,000 yuan, according to common sense, should be in the bag.

"No, the man didn't have anything in his hand. But—"

"'But' what? Say the following - whatever you think in your heart. ”

"The man seems to be fat."

"Are you trying to say that this man has bloated clothes?"

"That's what I meant. When he went downstairs, he took up most of the steps alone, and I stood on the steps and let him go.

If you put the bag with money in the raincoat, the person does look very bloated.

260,000 yuan, Mr. Ma should be in a bag.

"Have you noticed where this person is going?"

"No, after the man walked over, I went upstairs."

Shi Wenjie's delay in the school commissary was about ten minutes, and the murderer's time to strangle Chen Qidi only took a few minutes, and it was entirely possible that the murderer left Mr. Ma's house and met Shi Wenjie at the staircase.

Although Swenjie did not provide specific information, he realistically reproduced the scene of his brushing shoulders with criminals.