I firmly believe the pharmaceutical cartel had her killed because she was a huge threat to them, as are most of the natural type healers. I've read various blogs and posts over the years that sounds like cadmium poisoning which mimics cancer in the end. Especially the horrendous joint pain, a very common symptom. I think if they ever exhumed her body, I bet it would be over the top in cadmium.
And they wanted to make it look like 'cancer'--so they could point and say---'see, her stuff is quackery, she couldn't even heal herself'.
I know they threw her in prison before she moved her clinic to Mexico, (read one of her supporters posts about it somewhere)---dragged her out of bed in the middle of the night. Wouldn't allow her even the phone call--but she has many influential supporters who hounded the police until finally, they had to bring her out--she sat in that cell for 2 weeks.
The judge in the court looked at the 'case' against her and apologized profusely to her, say he couldn't see ANY reason for what they'd done to her. I'd have moved to Mexico, too! But I'm pretty sure she died at home.
And a zapper will have no effect on poisoning, so of course she died. I don't know if she realized what it was, but I'm sure she knew it wasn't really cancer.