Nehemiah said:
"initially they were probably going to fly away and go to ground, issuing press releases, and if it got scary just flee the country."?
Off the top of my head John had arranged to fly out of Colorado, about 20 minutes after her body was found - leaving JonBenet's body lying in the morgue?
PMPT pp 35. paraphrasing ...
Fleet White said around 3:00PM he had called the Ramsey's Pilot to cancel a flight to Atlanta which John Ramsey had made arrangements for ....
So if we try to put ourselves inside his head that day. Here we have a man who feels so in control of an ongoing homicide investigation concerning his own daughter, he intends to leave it behind as soon as possible. How can we explain this?
John is an intelligent man, he knew Jonbenet's body lying dead somewhere in the house, meant the blame would land on the parents shoulders. He likely reckoned that the staging could only buy time not exculpate them.
So imagine John stressed and thinking fast that day. He calculated his chances of not being mired in a homicide investigation, even possibly arrested lay in leaving the crime scene as soon as possible!
A hint that this formed part of his strategy lies in him having Burke removed at the first opportunity, here Fleet White assisted as he did in other matters.
So the plan was to fly to Atlanta, and obviously take things from there. Obviously they could not become incommunicado so its likely Press Releases would be used to influence public opinion. And as a last resort if all that failed they would flee the country using their luxury boat or plane.
Others who have a better understanding of the Ramsey plane inventory may be able to enlarge upon this.
All this does not mean John Ramsey is a guilty man, only one who is concerned with the freedom and survival of himself and his family. To this end he achieved his aims.