Too many questions here. If you watch the video, the information timeline was breached. ABC refused to release the raw more explicit video.
In other words, we don't know if or when she died. We don't know if she died, how she died. The body in her casket may or may not be the same body. All we do know is that she is no longer in the position to answer anyone's questions one way or another. We know that the reporting of her death came before it should have poissible to reveal. We know that ABC will not release more explicit video. We do see something odd about the video that was released.
So, why not a frogman? If Hastings can die in a fiery crash that looked a lot like a explosion, why not a frogman?
“The body in her casket may or may not be the same body.”
She had a freaking open casket funeral. What do you think, they called in Madame Tussaud?