I have seen actual autopsy pictures of women who were strangled and who had fingernail gouges on their necks from trying to get the offending rope/ligature off. The marks are remarkable; IOW, there can be no doubt they were caused by fingernails. Myers wrote in his autopsy report that the marks on JB's neck were petechia. I think Myers knows the difference between fingernail gouges and petechia.
As bad as JB's neck looked in the autopsy pictures we saw, the pictures I saw were much worse. Imagine, if you can, someone slipping a slim rope around your neck and trying to strangle you - would you gently scratch your neck, or would you struggle violently in a life and death struggle, gouging the skin of your neck with your fingernails in order to slip your fingers under that ligature and pull it from your neck? I think the answer is obvious - and the pictures I saw showed longish, bloody gouges where the women had gouged the skin out of their necks trying to get the ligatures off. Their fingernails would have had bloody flesh and abundant, viable DNA available for testing - their own DNA. Contrary to what some have claimed, JBR did not have flesh under her fingernails, which certainly would have been there if she had gouged the skin on her neck.
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