Austin Metcalf, 17, was fatally stabbed by Karmelo Anthony at a high school track meet in Texas in 2025. A Texas jury found Karmelo Anthony guilty of murder for the stabbing death of Austin Metcalf. Karmelo Anthony was sentenced to 35 years in prison for the murder of Austin Metcalf. Karmelo Anthony's defense attorneys have filed an appeal seeking a new trial.

According to bluesky, Karmelo Anthony was charged with murder for the stabbing death of Austin Metcalf. Defense attorney Michael Howard argued that Karmelo Anthony acted in self‑defense, as reported by gdelt. Prosecutors said Karmelo Anthony was repeatedly told to leave a rival school's tent before the stabbing, also reported by gdelt. Prosecutor Bill Wirskye questioned why a teenager would bring a knife to a school sporting event, according to gdelt.

gdelt reported that Karmelo Anthony was 17 years old at the time of the stabbing. The Guardian reported that Karmelo Anthony is 19 years old at the time of the appeal. The Hindustan Times reported that Karmelo Anthony's GiveSendGo fundraising campaign remained active after his guilty verdict. The stabbing occurred after a confrontation about leaving the tent belonging to Frisco Memorial High School's team, as reported by gdelt.

Newsweek.com reported that the jury that convicted Karmelo Anthony was a Collin County jury.