Everyone was deceased prior to the police arriving. As the judge said.
I would tend to agree reference the other four. but shelia may have still been alive.
Prior to 5am, there were just Bamber and the three coppers on the scene, doing the perimeter. WHF is a large place, not a beach hut on Brighton beach.
The dog was barking for some reason.
Reference the loud hailer, she's hardly going to open a window and go " coooeeeee"