I was wondering if anyone else caught that. For people that say, "she was just tossed out on the side of the road like yesterdays trash." The evidence shows us differant. It shows that the killer did have feelings for her. They covered her up, either to keep flies away from her or because they maybe could not bear to look at her. This is shrouding and most people learn at a young age that it is appropriate to cover a body after death and before burial. (anyone remember their favorite pet dying?)
After a time, when the fear of being found out is greater than their greif, and they know that the body is going to smell and be found with whatever was put on it for cover. They have to put it out and they did so in such a way that it would fit the accused. No cover nude, not buried.
Most killers are tender at heart.