The maintenance room is in the innermost part of the restaurant, like a utility room, which is spacious and full of many items.

Su Jin saw the triangular ladder painted red in the corner at a glance, and she walked over and took a closer look around the ladder.

On the side, Shan Chenxun was asking the two men: "Do you usually lock the door here?" ”

"Not locked." Lao Li explained, "Because there are no valuables, I never lock the door. ”

"Do you have a good recall, apart from the two of you, has anyone used a ladder?"

Lao Li shook his head and said, "Officer, I really don't know." ”

Ah Gui was silent, his eyes flickered, Shan Chenxun caught his evasive eyes, and said coldly: "You know? ”

"Officer, I'm ......" He frowned together, and stopped talking.

"Just say what you know."

"I ......" Ah Gui hesitated for a moment before he said, "I don't know if it has anything to do with the case, officer, a week ago, I saw Boss Xie take a ladder into Bibo Pavilion!" ”

Since the incident, he has been struggling, hesitating to inform the police about the incident.

"Xie Aimin?" Shan Chenxun squinted.

"Well, our boss."

"What is he doing in there?"

"Bibo Pavilion has recently had bugs, which have caved some holes in the floor and beams, and I was going to hire a special painter, but the boss said no, I had to brush it myself." Lao Li said.

Agui looked at him suspiciously: "But he didn't take the paint bucket that day." ”

He remembered very well that the boss only took a ladder to get in.

"Then I don't know." Lao Li also had something to say.

"What time is it?" Su Jin stood by the ladder, her voice penetrating through the mask, clear and bright.

"What's the number? Think about it......" Gui rolled his eyes, "It seems to be No. 1!" Wrong...... It's number 2! ”

Su Jin turned around, stared at the ladder and said, "Help me move the ladder to the box......

"Okay, officer!" Lao Li reacted quickly, immediately ran over, picked up the ladder and left.

Several people returned to the box, and Su Jin asked him to put the ladder under the beam where the corpse was hung, and then climb up directly.

"Su Jin!" Shan Chenxun stepped forward and firmly grasped the ladder, "You come down, it's dangerous!" ”

Su Jin was silent and climbed to the top second step of the ladder.

The ladder is very high, about four meters, and you can reach the beam by reaching out from the top.

She took out her flashlight, shone it on the notched part of the beam, and ran her fingers through the paint......

Shan Chenxun looked at her, and the others remained quiet, and after a while, Su Jin came down from the ladder.

"What did you find?" The man asked.

"The paint on the beams should have been rubbed off before it dried."

"In other words, Xie Aimin is suspicious?"

"Well, you can talk to him." With that, she circled the ladder again.

The feet of the ladder are not clean, and there is a lot of dust and dirt left on it, which is supposed to leave some marks on the site.

It can be seen that the murderer deliberately handled the scene and was very cautious and careful.

Shan Chenxun asked the three more about the situation, and then asked them to leave.

When the man turned around, he found that the woman had climbed the ladder again.

"Stay safe." He held on to the ladder and told him repeatedly.

Just because the woman was thin and small, she staggered on the ladder, as if she was about to fall down at any moment.

"How tall is Xie Aimin?" She asked, tilting her head.

"Visually 173 centimeters." Shan Chenxun's estimate is quite accurate.

"173......" Su Jin raised his hand and compared.