I don't know if this has been pointed out but if not I will because it is certainly noticeable to me. (from link below)
WHAT DO WE NOT SEE HERE ?
View attachment 391765.
I see no scratches whatsoever. No claw marks, no gouges. Nothing but a slight redness at the very top of the throat. Even under large magnification nothing is visible. The time since November 13th would not be enough to heal any significant mark completely.
We know that the reference "some" of the victims had defensive wounds has always been used. Some is certainly more than one--it could be 2, 3 or all 4. One of the things I HIGHLY doubt is that none of the girls would have attempted to scratch his face in their struggle to avoid death. And the fingernails of females can do significant damage.
So this means that there cannot be any hoped-for skin cells at least from his face under their fingernails because there is no evidence of where it could have originated. The prosecution cannot merely speculate that he covered his face with a mask, the defense lawyer would force them to produce evidence of it.
If the rest of his body looks like this and if they cannot find that mask or prove one was used, this is a problem for the prosecution. It is certainly a factor which is exculpatory.