Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

This is the autopsy photo of JFK's back wound. Notice the area of black that is devoid of having the appearance of hair, where it looks like somebody took a felt pen and blackened out an area.

I will circle part of it.

So, what is that weird blackness that looks so artificial? Why would hair look like that in a photograph? What is the explanation for this? Why hasn't it been mentioned before?