This is awful beyond belief.
Outwardly, the person of interest seems dressed like a local ( he is wearing arguably farm clothes or work clothes) and the area has working farms and probably also has agricultural based business like irrigation supply, grain elevators, and tractor dealers.
At the same time, he looks over dressed for warmth as I dont think it has been bitterly cold. For example, he seem to be wearing a jacket, a sweatshirt, a flannel shirt, and possibly an additional shirt or some sort. All of this is in addition to thick hat that seems to have ear flaps.
Though his clothing could imply somebody working in construction that keeps layered clothing and either adds or removes clothing depending on the weather, it could also imply a drifter who wears his entire wardrobe. A construction worker would probably just keep the extra clothes in his car or truck. A drifter, however, would not have this option.
Does anybody know how cold it was that day?