Wang Xiaorong came over and asked, "Guanyu, what did you do? Why is it so sure that the old man is not the murderer? Do you have any evidence?

Guan Yu nodded and said, "I have evidence, and I have found a lot of evidence." Guan Yu said, taking out a lot of fishing thread and Liu's fine needles.

"Look at this, I found it too." Guan Yu kept four or five fishing threads and needles on the ground and said, "These are all perjuries made by the murderer, so that you can find out the usefulness of this fishing thread.

Looking at Yue Gaoyi, sure enough, those fishing lines...