When I first posted that picture, I was asking someone about what that fleshy thing inside the circle could be.
The answer came back that it might have been from an exit wound's expulsion of a joint between cranial vertebrae that had been hit. I think that comports with the eyebrow shot, presumably from the southerly (?) sniper team?
Gotcha. Quite possible.
One more question. Is it possible that the bullet that took out Crook is still lodged inside his head?
I imagine the sop will be for an autopsy but I won’t hold my breath for any answers.