In the last quote where the Detective says the BG was looking down, not even paying attention... if you replay the gif that someone made on one of the previous threads and use the photo with his foot up as the first photo and his foot down as the second, he looks up - directly at the camera. The first time I saw it, it surprised me - I didn't expect to see that. My interpretation anyway.
I saw that also, in that gif. It gave me a chill. To me he seems to be turning to his left toward the camera as he looks up. After hearing the 'down the hill' and seeing that gif, it made me feel sick.