I want to be polite here, because you are new here. I myself have not been around for such a long time. You do not seem to really be asking a TOS question here. (For that, I merely refer you to the mods) You seem to be making a sort of appeal here to good conscience. You may be addressing the wrong person to meet your needs. I may disappoint you because I am a realist. Here is my take:
- Your first sentence presumes that EA's mother knows the truth. I have seen no such evidence.
- I have seen no evidence that EA's father knows the truth.
- I disagree that EA's family are victims. They are the family of the accused. In discussing crime, I characterize victims as those harmed by the crime directly, the family members of the victim who did not themselves participate in the crime, and should the victim be dead, her survivors.
- EA may not really have a conscience to appeal to. I believe him to be a narcissist of the worst sort and perhaps an actual psychopath. I don't much see help for his conscience.
Moreover, as a tactic to find what actually happened to Christina, I believe the efforts directed at getting EA to tell what happened by using appeals to his conscience, offers of forgiveness, pressure on his family to all be utterly useless in terms of extracting the desired result. In my opinion, these won't work.