Buzz, it seems we are going to have never ending revelations that will be similar to what Karr said in Costa Rica.
In a trial, what Karr has told people over many, many a year, would create a heinous profile of a man sexually obsessed with young girls. And that profile is a perfect match to what kind of intruder would have sexually violated JonBenet.
If there is a trial, Karr's profile is going be beyond damning. Logically or not, jurors will take it to enhance the credibility of other circumstantial evidence that works against Karr.
Even if the DNA does not match, I see this going to trial. And I can see the State opening following a course as follows:
-- First, laying out what what Karr has already confessed to.
-- Second, spending day after day developing Karr's profile as a self-admitted preyer of young girls -- time spent to to ensure all of the jurors would truly despise him.
-- Third, his lack of an alibi and any revelations Karr made in emails or elsewhere regarding case facts that never made it to the public domain.
-- Lastly, landing a knockout blow with compelling handwriting match-up work and Karr's closing in the year-book comparitive; i.e., "Shall Be The Conqueror". A prosecutor might well end their rebuttal closing argument by telling the jury: It's now up to you to make sure that does not happen.