Hi. I've been reading for a while, have been closely following the JBR case since I first heard about it in 96. I personally believe JBR was killed accidentally by PR (being tortured for wetting the bed right before a big trip - what about the laundry area inconsistencies?) and JR found out afterwards and helped to cover it up. I believe PR wrote the ransom note...after all, murderers don't write kidnapping notes (and I think a killer bent on revenge against the Ramseys would have left JBR in a more prominent location, perhaps under the Christmas tree), and a kidnapper wouldn't have left the child behind. Even with the girl dead, he could still ransom the body.
Here's my question, in regerds to the strangling/head injury/screaming...how could JBR have emitted a scream loud enough to be heard by people in the house much less out of it if she was being strangled? (I believe the strangulation came before the head wound, and in that scenario, I see no way for her to be able to scream. I further assume she was unconscious by the time her skull was cracked open. I think the head injury was to ensure the obviously imminent and unavoidable death, and to make it look more like the work of an intruder.)