Then he tried to twist the handrail, but he couldn't open it without a small key when it was closed, according to Xue Youqi's reasoning, there would be no tools to lock the anti-theft door for the temporary crime, so is it possible to lock it after getting the key from the inside?

Tao Yiqiu suddenly found a breakthrough and said to Shu He: "Please help me go to the house to find out if there is a key." ”

Shu He agreed, did so, and when he came back, he took an iron-yellow key from the house and came out.

It can be opened, and it can be locked together with the security door, but the key is inside.

The clue that seemed to be unravelable was broken again.

"Have you ever seen one that doesn't require any tools to open a security door?"

"I think I have to pry it open." Shu He thought about it again: "Maybe we can overturn Xue Youqi's idea, what if the murderer is prepared?" Maybe he can pry open the security door and lock it. ”

Tao Yiqiu didn't speak, and carefully observed the keyhole: "I still prefer him to be improvised, you see, the blood stains on the ground are very messy, and the way of death is different, I think any kind of murderer will pay attention to a sense of ritual after the killing, in popular terms, it is obsessive-compulsive disorder." ”

Well, it was she who was stupid and didn't believe what she said.

What else could Shu He say, he silently shut his mouth.

The corridor was quiet for a while, but suddenly there was a slight sound of footsteps, which was very regular.

How can there be footsteps at this time? What's more, the sound is so steady, it's like coming out of a horror movie.

Shu He didn't care at first, until he said, "What are you looking for?" ”

Shu He was suddenly startled, and jumped up screaming: "Who, who?" ”

It was an old woman, in her eighties, and the wrinkles at the corners of her eyes were almost impossible to see her eyes, Tao Yiqiu politely greeted her: "Is there something wrong?" ”

"Are you looking for these two?"

"Yes."

The old woman came down from the upper floor, her muscles and bones were not flexible, so she simply put her crutches on the corridor and leaned against it, while she sat on the stairs: "I don't know what happened to them, but the family often quarreled, and sometimes the whole building could hear the quarrel." ”

It seems that Xue Youqi's analysis is correct, the man should have domestic violence.

"A woman is also a suffering life, no matter how the man beats and scolds, but she doesn't leave him."

Shu He thought that she couldn't stand this kind of life, and if someone abused her, she would definitely divorce immediately.

"Do you know what happened on the night of the crime?" Tao Yiqiu asked.

The old woman was tired and wanted to catch her breath: "I don't know the specifics, but I remember that the woman came out once that night and came back very late." ”

Tao Yiqiu pressed step by step: "Then do you remember what happened after you came back?" Or did she bring someone back? What time will you be back? ”

The old woman was old and couldn't remember much, so she shook her head: "I only know that the woman went out after they quarreled, and when I came back, I was upstairs at home, and I didn't see anyone coming back with her, but I knew that it was almost midnight when I came back." ”

At midnight the day before, Gu was close to the time they found out, and it was only about twenty-four hours, and Xue Youqi was right about this point again.

"Did you hear what was going on inside when you got back?"

The old woman continued to shake her head: "I said, that's all I know, our neighborhood is a poor area, there is no surveillance, if there is any, it can be used for your reference." ”