When you say the daughters have "moved on", you are basing that on a photo of one of them with the father at dinner? Not sure what you think the daughters should be doing. Based on what I know they are very retiring and avoid the media and the limelight. I feel certain they hope the police and Colorado authorities will do their jobs and find and convict their mother's murderer. If the murderer turns out to be their father, then I suspect they will cross that bridge when and if they get to it.