More nefarious than two parent-doctors most likely used prescription drugs to make their toddler child drowsy while they went out and partied, then returned to find that she'd slipped and died, then they hid her body so they wouldn't lose their medical licenses and go to prison?

I mean, I'd call that pretty nefarious.

But if you're on the "Tony Podesta molested and killed her" train, then I can't really help you. Out of the dozens of scenarios I've seen and considered, that one is, by a huge margin, the least likely.