The scene in the video suddenly changes. In the busy street full of walking people, a little boy carries a black plastic bag. He puts it down by the lamp post. After he leaves, a tall man comes and opens the bag. Then he puts down something else and leaves.

The man is one of those in the photo.

After a while, another boy comes and takes away the thing.

The camera provides a clear image, and the whole process is clear.

Yi Yunrui lifts his ...