Self-Defense Rejected, Sentence Handed Down

Interior view of an empty courtroom with wooden benches and a judges bench

A Collin County jury has sent Karmelo Anthony to prison for 35 years after rejecting his self-defense claim in a deadly school track meet stabbing.

Quick Take

Jurors found Anthony guilty of murder in the 2025 stabbing death of Austin Metcalf.^[1]^[3]
The jury sentenced Anthony to **35 years** in prison after the punishment phase.^[3]^[5]
Anthony faced a punishment range of **five to 99 years or life** because he was tried as an adult.^[1]^[3]
Reports say the jury rejected the defense argument that Anthony acted in self-defense.^[1]^[7]^[9]

Guilty Verdict Brings a Swift End to the Trial

The jury’s decision closed a case that had already stirred anger across Texas and beyond. Anthony was convicted in the fatal stabbing of 17-year-old Austin Metcalf during a high school track meet in Frisco in 2025.^[1]^[3]^[7] Court coverage said jurors reached the guilty verdict in about three hours, showing they did not struggle long with the murder question.^[1]^[3]

That speed matters. In cases like this, the public often gets a flood of opinion before the record is clear. Here, the basic facts held steady across reports: Anthony was charged with murder, the defense claimed self-defense, and the jury rejected that defense.^[1]^[4]^[7]^[9] For readers who care about law, order, and personal responsibility, the verdict sends a blunt message that a deadly response will not be excused without strong proof.

Why the Sentence Was So Serious

Anthony was tried as an adult, which exposed him to the full adult punishment range under Texas law.^[1]^[4] Reports said that range ran from five to 99 years or life in prison.^[1]^[3] That is why the sentencing phase carried so much weight. Once the jury found him guilty of murder, the only question left was how much time he would serve for the killing of a fellow teenager.^[3]^[5]

Multiple reports also said the jury could consider whether Anthony acted under sudden passion, a finding that can lower punishment in Texas.^[2]^[4]^[8]^[11] But the jury did not give him a lighter break. Instead, it landed on 35 years, and reports say he must serve at least half that sentence before parole eligibility.^[2]^[3]^[11] For many readers, that detail will stand out as the practical part of the ruling.

What the Case Shows About Public Safety and Court Transparency

The case drew national attention because it mixed a campus-style tragedy, a self-defense claim, and a highly charged public response.^[3]^[5]^[12] Judges also imposed tight media and security rules during the trial, which limited live public access to the evidence as it unfolded.^[5]^[8] That kind of restriction may protect the court process, but it also leaves ordinary Americans dependent on secondhand reporting and post-verdict summaries.

A Collin County jury found Karmelo Anthony guilty of murder in the fatal stabbing of 17-year-old Austin Metcalf during a Frisco ISD track meet, sentencing him to 35 years in prison.

The prosecution and defense both waived their right to opening statements in the sentencing… pic.twitter.com/nJttfEJdww

— CBS News (@CBSNews) June 10, 2026

For conservatives who worry about soft-on-crime thinking, this case cuts the other way. The system treated the killing as serious homicide, not as a campus scuffle to excuse away.^[1]^[3]^[7] At the same time, the record provided here does not include the full trial transcript, the sentencing order, or the complete jury charge, so the exact reasoning behind every juror vote is not fully visible in the sources available.^[1]^[3]^[5]