Six-year-old orphan or ‘con artist’ adult? Revisiting the strange story of Natalia Grace

Docuseries breaks new ground on mystery of true age of Ukrainian girl adopted and then abandoned by Indiana couple

It's been years since a central Indiana couple adopted a girl from Ukraine, became convinced that she was an adult impersonating a child, and abandoned her, setting off an international media frenzy and a legal showdown with authorities who accused them of parental neglect.

But even after the recent release of a slickly produced docuseries broke new ground on the saga, the mystery surrounding Natalia Grace's virtually unprecedented adoption case seems to remain unsolved: exactly how old was she when Michael and Kristine Barnett left her? And was it unreasonable that they did so?