The story of Aaron Hernandez is one of the most stunning falls from grace in recent history. Once hailed as a hero for the New England Patriots, Hernandez is now viewed as an American tragedy. After beginning a promising NFL career at the young age of 20, Hernandez was thrown into the limelight. But few could ever imagine that a three short years later, he would be on trial, convicted of murder. Football and sports fans alike were perplexed as to how a professional football player with a growing family and promising career could resort to such violence off the field. But as the investigation unfolded and his story unraveled, more unknown factors were brought to the forefront. The public was exposed to the dangerous innerworkings of Hernandez’s psyche, seeing the anger, secrets and struggles that simmered beneath the All-American façade. Now, for the first time, Investigation Discovery (ID) explores how Hernandez went from professional football player to violent killer in AARON HERNANDEZ: AN ID MURDER MYSTERY premiering Monday, January 20 at 9/8c.