What started as a confrontation between two teenagers at a Texas track meet has become one of the most divisive criminal cases in recent memory. Dive into everything that led up to the fatal stabbing of 17-year-old Austin Metcalf, the competing narratives surrounding Karmelo Anthony, and the trial testimony that had people talking nationwide. From explosive witness accounts and claims that Karmelo was already holding a knife before the confrontation began, to the medical examiner's devastating testimony about Austin's final moments, we cover every major development from the courtroom…