I don’t think the truth will ever be known by the public. Too many botched forensic/investigative techniques to trust any of the stories that came out.
She will never admit to the truth. I think she’s getting away with something but I do think her brush with the criminal justice system over there put the fear of God in her. I don’t think she’s a sociopath like Casey Anthony. Like Ann coulter said, plenty of crimes were prosecuted prior to the discovery of DNA, now it seems no one can be convicted w/o it,