Texas law allows prosecutors to charge 17-year-olds as adults. A jury found 19-year-old Karmelo Anthony guilty of murder on Tuesday. He fatally stabbed Austin Metcalf at a Frisco high school track meet in April 2025. Both boys were 17 during the fatal incident. The judge immediately sentenced Anthony to 35 years in prison.

A Deadly Confrontation

Prosecutors proved Anthony threatened Metcalf before the stabbing. Defense attorneys claimed Anthony fought for his life in self-defense. However, student witnesses identified Anthony as the clear aggressor. The medical examiner delivered heartbreaking testimony during the trial. A massive knife wound directly pierced Metcalf's heart.

The Trial Details

Prosecutors called nearly two dozen witnesses to the stand. They relied heavily on eyewitness accounts of the bloody scene. The defense presented a very different narrative of the boy. His track coach testified about Anthony's team captain nomination. Anthony also maintained a perfect 4.0 GPA at his school. Despite this, the jury convicted him in under three hours.

Controversy and Sentencing

The trial sparked intense national debates about school safety. It also ignited fierce discussions regarding self-defense laws. Racial tensions surrounding the verdict remain incredibly high. Advocates from the Next Generation Action Network criticized the jury. They pointed out the complete lack of Black jurors. The judge offered the jury a lighter manslaughter option. That charge carries a maximum 20-year prison sentence. The jury firmly rejected it and chose the harsher penalty.

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