borndem,
Well the way I see it in the non-scream BDI. The sequence goes: manual asphyxiation, head blow, followed by the application of the paintbrush/cord



garrote.
Now initially there may have been a protracted struggle between BR and JonBenet, she has various contusions and abrasions on her legs, arms and face.
Someone wanted JonBenet dead, that blow on the head was not dealt as she was moving away, nor was it struck as she was standing up, since I assume she is now unconcious.
Something went dreadfully wrong in JonBenet's bedroom resulting in her loosing unconciousness and lapsing into a coma.
The blow to the head was intended to act as the garrote does, i.e. explain her death. It failed on two counts. There was no visible external injury to account for her coma and she did not stop breathing.
JonBenet could have been whacked on her head as she lay supine on her bed, this would explain the droplet of blood and her later mucus issuing either from her mouth or nostrils.
In essence her bedroom is the primary crime-scene and the place where the majority of the staging took place. Even her asphyxiation with the cord could have taken place here, with the paintbrush added down in the basement.
This is why I partition the crime-scene into an upstairs and a downstairs, i.e. JonBenet was molested, whacked on the head, and ligature asphyxiated
upstairs, then staged as an intruder kidnapping
downstairs.
Most of the unexplained evidence downstairs, photos, clothing etc was dumped there to disconnect it from upstairs. Hence upstairs was largely sanitized and laid the ground for Lou Smit's Intruder Theory.
Upstairs is the primary crime-scene and downstairs is the secondary staged crime-scene!
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