As for videos from Walmart surely LE would have obtained those to determine if Chad was there and if he bought anything, etc. Maybe they have and they're just being tight lipped about their findings so they don't compromise the case?
Foul play can't be ruled out obviously, but I also feel that the possibility he had something to do with Haleigh's abduction is just too real to ignore. He has connections in the area, knows the area, and his past crime fits this one perfectly. Sometimes you can't ignore "coincidences".
Surely this was an urge of his from his past actions. Obviously in jail he behaved b/c there aren't any minor girls in jail. He's only been out for a few short months and this happens.
They need to publish his picture more. If he is out there still someone HAD to have seen him. At a gas station, walking, grocery store, I mean it's hard to hide out with your picture plastered everywhere.