Many here are coming to the conclusion that this was a terrible accident. Personally, I will refrain from coming to any conclusion until there is more information. My guess is that at some point we'll hear more, whether from LE or from her family members.
But as some have noted, it may not be possible to determine the cause of death or exactly what happened. Or even if they determine it, the information might not be publicly known. In that case, I will simply regard it as an unknown.
I don't know how long it will take them to determine the cause of death (or decide that they can't do so), but I doubt that the pandemic and holidays are helping.
In any event, it's good (though sad) that her remains have been found. RIP Barbara. My condolences to those who loved her.
JMO