Opening statements began Thursday morning in the murder trial of Frisco ISD student Karmelo Anthony, who is accused of fatally stabbing 17-year-old Austin Metcalf at a 2025 track meet.

Opening arguments begin in the high-profile murder trial of Karmelo Anthony in Texas.

Police said Anthony and Metcalf got into an argument over seating in the stadium stands on April 2, 2025, which escalated when Anthony stabbed Metcalf in the chest with a pocketknife.