HEMPHILL — Johnathan Snead, 15, is flitting in and out of a white, vinyl-sided prefab shed that’s been converted into a bedroom. The bed dominates the room, and a crooked “home sweet home” plaque hangs on the wall.
A lone window allows in little light. Each time a door opens, cigarette smoke drifts in from the mobile home his family shares next door.
As Johnathan plays on...