These statements were from the CNN transcripts of the Nancy Grace show...link below. I believe the criminal profiler Pat Brown is right on the money.
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CASAREZ: So, to Pat Brown, criminal profiler, joining us tonight out of Washington, D.C., originally these tire tracks were believed to be the car of an abductor because an interstate was pretty close by this rural area. But when a man suddenly comes forward and says, no, I made the tire tracks because I had a police scanner and I drove in the area, they realized, wow, maybe it`s somebody much closer to home.
PAT BROWN, CRIMINAL PROFILER: Right, Jean. And that was really brave of that man to even talk to anybody at that point. I mean, he could easily be considered a suspect right away.
But, yes, I believe he was a local. There`s no reason a man would come off the highway searching for children at that time of night. I think he saw the boys go by and he knew they would be coming back his way.
He wore a mask because he didn`t want to be recognized by them. I think he`s very, very local.
CASAREZ: To Pat Brown, where do you think the investigation needs to keep going at this point?
PAT BROWN, CRIMINAL PROFILER: Oh, I think, Jean, that they are going in the right direction. As I said before, I don`t believe this person had a vehicle because if he did, it would be much easier just to drive by and just grab one of them and keep going. He didn't have to go through all that sticking them in a ditch stuff and don`t look back. I think he had his little own special ops thing going and his little fantasy.
He's out there like in Vietnam doing special ops. He saw the boys coming by, said, here`s a good victim, he waited for them to return. He stood there. He got rid of the two of them because he couldn't handle all three, brought one back to wherever, and kept them there for as long as he wanted to continue what he was doing, until perhaps, some other people would be around and would find him there. So, I think they`re looking exactly the right place. We don`t know if that man on the farm is guilty of anything, but it`s the top place to look.
http://edition.cnn.com/TRANSCRIPTS/1102/28/ng.01.html