Karmelo Anthony, a 17-year-old student, was charged with first-degree murder after fatally stabbing another 17-year-old, Austin Metcalf, at a track meet in Frisco, Texas, on April 2, 2025. The incident occurred under a tent at Kuykendall Stadium during the event. According to multiple witness statements and an arrest affidavit, the altercation began when Metcalf asked Anthony to move from under the tent. Anthony allegedly responded by saying, "Touch me and see what happens," then when Metcalf tried to physically move him, Anthony pulled out a knife and stabbed Metcalf once in the chest. Metcalf was taken to the hospital but died shortly after arrival

. Anthony reportedly admitted to stabbing Metcalf and asked police if his actions could be considered self-defense. He was taken into custody at the scene and has been held on a $1 million bond, which was later reduced to $250,000. He was released from jail on bond with conditions including house arrest and electronic monitoring

. Following the incident, there have been threats and harassment directed at Anthony's family, leading to him being moved to an undisclosed location for safety reasons. The case has drawn significant public attention and heightened security measures at related events

. In summary, the stabbing stemmed from a confrontation at the track meet, with Anthony stabbing Metcalf after a dispute over space under a tent, leading to Metcalf's death and Anthony's arrest and murder charge