Something that seems out of timeline to me:
Call to 911 by hysterical Patsy: 5:52 am, later stated JR was in underwear reading the note on the floor nearby.
Police arrive: 6:00 am - Greeted in front of the house by Patsy who ushers them indoors where a fully clothed JR directs them to the RN in the kitchen.
In 8 minutes, JR got fully clothed and returned to the kitchen, and if BR was near enough to the phone to be heard at the end of the 911 call, he was then prompted to return to bed and stay there, as if he had never been awake, right? You would think either JR or PR would have made sure this happened, but perhaps not. At any rate, lots of rushing by them within 8 minutes to be in their respective "positions" when police arrived.
Dodie makes an interesting observation on the 911 call thread: That in his interview that morning, BR said JB was awake when they came home, and that he was in his bed that morning, but pretending to be asleep. This harkens back to earlier postings about asperger's people being unable to lie, and the thought BR might have been diagnosed for that syndrome at the time.
Of course we don't know that JR was in his skivvies before the 911 call, but if he was, it seems like plenty of time to me. Guys can get dressed fast. Especially guys who've served in the military. There are surprise drills that one must respond to, in full uniform, within minutes, from a dead sleep. I can't see why it would take the average veteran anywhere near 8 minutes to get dressed if the need was there. (assuming normal physical condition)
I also can't really see rushing to dress for the police. PR is there to greet them, what does it matter if he comes down a few minutes later? If they are colluding, then she knows what part she's playing. If they aren't colluding does he need to be there to control things as much as possible? Of course, if they are colluding, and JR wants to greet police, and needs time to dress, they can always delay the call to 5:59, or 6:04.
PR of course was already dressed, in the same clothes she wore to the party - which any good co-conspirator would do to prevent suspicion
I wonder if BR was prompted, or just went back to bed on his own? I know that sounds counter-intuitive for a "normal" kid, but IF BR has one of the range of autism spectrum disorders, (and I'm not saying he does) then he might have been very sensitive to excessive stimuli, such as lights on police cars, and loud talking, and general commotion. I see autistic kids from time to time, and many try to avoid crowds and loud noises. A house rapidly filling with people might be like nails on a blackboard to some kids with an autism spectrum disorder.
I'm not saying this is what happened, just wondering.
I also wonder if PR could just be mistaken about BR not being up. If she really was innocent, and really believed JB had been kidnapped, I doubt she'd be carefully observing the exact time everyone got up or came into the room. If he went back to bed, on his own, she might simply be misremembering? Of course that won't do, the Rs always have to be lying.
So that's one possible explanation.
Another is that all 3 are colluding in a coverup of the killing of JB.