T he dead girl had perfect teeth. That’s what so many of the strangers who obsessed over her case online noticed, and one of the few things that could even be noticed. Her body was burned so badly as to be unrecognizable when she was found in the early hours of October 29, 2006, near Longview, Texas. The two men who saw her thought, at first, that they had stumbled across a mannequin set on fire, perhaps as an early Halloween prank. It was the smell that alerted them to something more sinister