I agree Jo. Whatever the reason, the result is tragic.

The reason for her death is all conjecture for now because there are so many things that might have happened, and until the autopsy is completed, everyone will be wondering why.

She may have hit her head and had a cerebral haemorrhage, but the news items say there was nothing for her to hit her head on except snow.

Another option is that she could have had an aneurysm that burst, or a ruptured blood vessel for some other reason. If that happened, then it would explain why she fell in the first place, and the continuing bleeding being the reason for her death.

As I said..... so much is just conjecture for now.