Attorneys for the parents of Kendrick Johnson have accused authorities of covering up the truth about his death.
Johnson was found dead in a rolled-up gym mat in January, and state medical examiners concluded the death was accidental. However, Johnson's family believes he was murdered.
Investigators have stood by their original findings, but the case will now be reviewed by a federal prosecutor.
On HLN's Nancy Grace, the attorneys detailed some of the questions that they feel are still unanswered in the case.