This is a hallway in the rear of the 2 story Tudor building, two doors down from the hallway in which Kitty was attacked for the second time. It appears to me to be identical to the one in which Moseley finished what he had set out to do. Kitty was laying on her back on the floor when Moseley found her again. If Moseley was kneeling over her when he continued the assault, then it looks as if neither one of them would have been visible to anyone who might have looked out from behind the door upstairs.