Laytonian, on your advice I went back and looked at the videos. Something caught my eye in Cam 7 right at the end.
I must have played the video about fifty times in a row. I enlarged to full screen on my 20" Samsung flatscreen. And I found the best way to watch that video is to not sit up close. If you get too close, the pixels will drive you nuts. But if you sit back about three feet it seems to be easier to decipher images.
So, Steven leaves frame left. We now see his form and his shadow on the passenger's side windows of the minivan. We see him walking down the sidewalk, his shadow is out to the front and left of him. It looks to be kind of a "soft" shadow in that the object (his body) is a few feet away from where the shadow is actually projected on the ground.
But, at mark 12:00:53, suddenly the shadow becomes very dark and "hard", meaning the shadow is now much closer to the object (his body). For example, if I have a light source on the other side of a 10 foot wide room and I put my hand up in the middle of the room, you will hardly notice the shadow of my hand on the opposite wall. But, as I move my hand closer to that wall you can begin to discern a shape of a hand. In addition, the shadow gets darker and darker, more into focus, more into focus until my hand is up against the wall and the shadow is defined and dark.
Steven passes very close to something at that point in the video, something that is much closer to him than anything on that sidewalk. My problem is that looking at a satellite view I can't tell what that "something" is. I suppose I could drive up there and check for myself. . .uh. . .again. But I would like to have other people look at that first.
My second point is maybe my eyes are totally playing tricks on me. Granted, the video quality is not that great and things look to be moving in frame that really aren't, just look how the surface of the van changes from frame to frame even though it is parked. But, I could swear that it looks like Steven never truly gets to the edge of the passenger's side front window. It actually looks like he either stops or more likely walks off the sidewalk away from the street.
Doing my calculations that I did last week figuring approximately how fast Steven is moving, I figure he moved just under sixty feet from the edge of the frame until we see his figure last on that window. Just under sixty feet would put him not quite in front of that first casita we see from the satellite view. It almost looks like he cuts into the lot before he gets to that casita. It would explain why the shadow gets so dark since he is moving closer to an object that is on the other side of the street.