While Brittany Murphy's autopsy is finished, questions regarding what caused her death are still unknown. The autopsy won't be revealed for a few weeks, though countless websites are already claiming they know the reasons behind the actress' death. We've been hearing everything from a cocain overdose to an eating disorder to the actress being diabetic. The truth is, until the autopsy is released, nobody knows for sure what caused Murphy's death. For the moment, the results rule out foul play, and only say that she died of 'natural causes.' So at this time, the only thing we can do is to listen to the family's request and respect their privacy at this time as this is a terrible tragedy and certainly an awful time for Murphy's family and friends.