BTW
The head wound information is in contrast to the strangulation information, which does not definitively tell us, IMO, that the strangulation occured while she was alive. The petechial hemorrhaging on her skin can itself be due to head trauma and the 'dead ringer' for strangulation, petechial hemorrhaging of the whites of the eyes, was not present, according to the autopsy. The violence of the strangulation, by itself, does not speak to whether or not she was alive or dead when it occured.
Are you certain there was no petechial hemoraging in the whites of the eyes? That is not what I gathered from the description of the petechial hemmoraging. In another area of the autopsy, the coroner does describe the eyes as being white, but this is the area where she is describing the general health of the child. The brain is also described as being unremarkable, and we know there was trauma there. I read that and took it to mean that JonBenet's general health was good before the attack. If she had described the whites of the eyes as being yellow, that would have indicated liver problems and poor health at the time of death.