Regarding the picture of the stalker in the photo. I can see it 2 ways. First I only saw the person looking left (maybe quickly hence no detail), but the side profile of the face just seemed too weird, almost like a skull. I looked and looked and then could see what others have said, the person is looking right up the driveway, with a cap on backwards which is facing directly at the camera.
But then I looked on the main suspects (K) myspace page. He has a couple of pictures sitting in a car with a camouflaged jacket and he has what I would call a mask on with only his eyes showing. This covers his entire head. The mouth and jaw of the "mask" sticks out, it is very similar to the side profile of the stalker picture, although not 100%. I'm sure there is a name for this type of mask/balaclava? but for those who have seen K's Myspace, I hope you know what I mean.
Here is a pic with what I mean, baseball cap and side profile (I inverted the colours)....
This is the mask K is wearing on one of his Myspace pics. To me this kind of resembles the stalker picture if he's looking left. Big thanks to SmoothOperator for this picture: