I hold John Karr to be presumed innocent of murdering JonBenet. If the case goes to trial, I will want to hear his what his defense team says. It could be that his attorneys considers an affirmative defense.
No matter what the case is, I assess and weigh facts/evidence that is deemed to be relevant and reliable. I guage that same evidence against our proof beyond a reasonable doubt standard.
I can see the case rapidly building against Karr. I think the handwriting comparatives could be extremely compelling if not virtually conclusive. By the way, Nancy Grace also sees his handwriting as very inculpatory. Any time Nancy Grace and I feel the same way, it is Twi-Light Zone time. lol