(1) It is hard to associate her feeling ill for 24 hours with a cardiac arrhythmia resulting in complete and sudden loss of consciousness with loss of protective mechanisms.
(2) One thing a medical examiner can not diagnose is a new cardiac arrhythmia (for that you need a living, beating heart.)
(3) Furthermore, it's hard to conceive of a mortal head injury resulting from a fainting episode in such a young athletic person.
Foul play should be suspected before ascribing the 'arrhythmia-induced, mortal head-injury' theory. Feminists in particular should demand answers.
The fact who performed the autopsy is the red herring in this one.
Mitral prolapse in young females is a normal, not significant finding.