And I've always wondered if she did it deliberately because she couldn't take Joe's bull$hit any more. Joe himself, in a text message to Hunter, blamed his son's addiction on himself and his first wife.
I think she was possibly extremely distraught from thinking Joe sexually molested atleast one of the children and just wanted to end it all.
He’ll, even back than the Bidens would has buried her if she went to the police.
Just a thought...