The autopsy can not prove anything. It can not "prove" she was PVS rather than minimally conscious and it can not "prove" what caused a young healthy womans heart to stop long enough to severely damage her brain. And it certainly can't justify the state ordering the death of an innocent citizen.
Cause of death is undetermind.
Was she strangled?
Was she drowned?
Was she poisioned?
Was she beaten to death?
Was she shot?
Was she stabbed?
No amount of autopsys can determine that.
But we know she did not die of natural causes.....