I also saw this on FOX and came away with the idea that the parents were living in a trailer. The kids were in a shack assembled from plywood, tarps, scrap materials. They showed a picture of a travel trailer roughly 30 feet in length. I assumed the parents were in that.
“I assumed the parents were in that.”
FNC quotes the sheriff as saying the trailer was abandoned ... whole family was living in their tiny, homemade shack ...