That is when the person who has murdered the victim in a possible rage realizes what they have done and tries to undo, by wiping down the victim. This is explained more by John Douglas and the link follows: I just happen to believe this is why JonBenet was wiped down. I know there was a lot of discussion here about the wiping down of JonBenet, but little was attributed to the "undoing". Here is a link for anyone's info. http://www.johndouglasmindhunter.com...les/030211.php When a parent kills a child Or it could be that a close relationship existed between the killer and the victim. Let's say a parent kills a child and then buries the body. You may find that the child was carefully wrapped or the face covered to keep dirt from getting in the mouth. In essence, someone is caring for the child after death. There's a word we use: "undoing." That's when someone tries to somehow lessen the damage after committing the crime, maybe by cleansing and bandaging the wounds. The killer may try softening the appearance of the crime by making the body's position restful and clasping the hands, almost like the victim is laid out. It's a way of symbolically erasing or reversing the crime, and it suggests remorse. Doing this gives the subject away. It's a personal crime -- strangers wouldn't likely do this.