Frisco, Texas — In a dramatic development following the conviction of Karmelo Anthony, the twin brother of slain 17-year-old Austin Metcalf has publicly released what he describes as “bombshell” new evidence and allegations that could impact ongoing legal proceedings.

Karmelo Anthony, 19, was found guilty of murder and sentenced to 35 years in prison earlier this month for the April 2025 stabbing death of Austin Metcalf during a regional track meet at Kuykendall Stadium. Anthony claimed self-defense, stating he was confronted and pushed by Metcalf and others before pulling a knife. Prosecutors argued Anthony provoked the confrontation and responded with deadly force to a non-lethal shove.

Hunter Metcalf, Austin’s twin brother who was present at the meet and witnessed the aftermath, has now come forward with additional materials. The newly unveiled evidence reportedly includes enhanced video stills from the stadium (highlighting individuals in the bleachers and on the field), along with statements challenging Anthony’s account of events.

Photos and footage circulating online show Hunter Metcalf at the stadium in team gear, alongside images from the scene and family tributes. Supporters of the Metcalf family claim the new information undermines Anthony’s narrative and strengthens the case against any potential appeal. Anthony’s legal team has not yet publicly responded to the latest claims.

The case drew national attention due to the circumstances — a rainy day track meet, a dispute over a team tent during weather delays, and the fatal stabbing in front of other students. Anthony turned himself in shortly after the incident. A jury rejected the self-defense argument, concluding that Anthony’s use of a knife constituted murder.

The Metcalf family, including Austin’s parents and twin brother, has spoken publicly about their loss, describing Austin as a talented athlete, peacemaker, and beloved sibling. Hunter has been vocal about seeking justice and honoring his brother’s memory.

Legal experts note that while post-conviction releases like this can influence public opinion and potential appeals, they must meet strict evidentiary standards in court. The Collin County District Attorney’s Office has not commented on the new materials.