The thing that will always stick with me is the ransome note. The amount of $118K? I could see if he happened upon a round number such as $150K, but he just happened to ask for that unique amount?
Also, you mean to say he stayed in that house and drafted that note AFTER he killed JonBenet?
That $118k is the amount of the father's Christmas bonus. That factoid is puzzling.
The little crud knew about the little girl "somehow" and also about the $118,000. He grabbed the paper and pencil or pen or whatever while he was at the party and cased out the house at the same time.
This was "revenge" for getting kicked out of the school system where people who know people still have their jobs AND against the "pretty" and "rich". He took away what they treasured most.
He mentions that she was the "school star".
He's a watcher, a planner, clever and has access to children. I think we'll find more people paying attention to his "history" and people who he worked for.
"Also, you mean to say he stayed in that house and drafted that note AFTER he killed JonBenet?"
I think: Someone (maybe this perfert) entered the house when the family was at the party and waited until they were asleep. He killed JB and left. Patsy found the body in the night, assumed husband or a son killed her, so wrote the LONG kidnap letter to throw suspiciaion away from her family.