Police work the scene following a stabbing at a high school track meet in Frisco, Texas, on April 2, 2025.
Police work the scene following a stabbing at a high school track meet in Frisco, Texas, on April 2, 2025.

KTVT

McKinney, TexasAP —  

Prosecutors on Thursday told jurors that a Texas teenager competing at a high school track meet provoked a 17-year-old boy from a rival team before fatally stabbing him in the chest and fleeing as people rushed to help.

A defense attorney told jurors that Karmelo Anthony was acting in self-defense when he pulled out a knife and stabbed Austin Metcalf after Metcalf made physical contact with Anthony.

The accounts of the stabbing emerged as a trial opened in a case that stunned an affluent Dallas suburb where the pair attended school. The death last year quickly drew wide attention, in part because of social media posts that amplified the case in racial terms. Anthony, now 19, is Black, while the Metcalf was white.

Anthony told police he was protecting himself when the two got into a confrontation during a track meet in Frisco, a booming city in Dallas’ sprawling north suburbs, according to an arrest report.

But prosecutor Bill Wirskye told jurors it was a “senseless murder” and not a case of self-defense. He called it a “sneak, surprise attack” and said Anthony “knows he goaded the murder.”

A courtroom sketch shows Karmelo Anthony, center, at the defense table on June 4, 2026, in McKinney, Texas. (Pat Lopez via AP)
A courtroom sketch shows Karmelo Anthony, center, at the defense table on June 4, 2026, in McKinney, Texas. (Pat Lopez via AP)

Tony Gutierrez/AP

“He didn’t want a fight,” Wirskye said of Metcalf.

The jury was seated this week under increased security at a Collin County courthouse and a judge has set strict rules over the proceedings, including prohibiting attorneys from discussing the case publicly. Dozens of people lined up to get a seat in the courtroom Thursday.

The stabbing happened on a rainy morning in April 2025. Witnesses told police the confrontation began when Anthony sat under a tent belonging to Metcalf’s team, according to an arrest report. The teens went to different high schools in Frisco.

When Metcalf told Anthony that he needed to move, Anthony reached inside his bag and allegedly replied: “Touch me and see what happens,” the report said.

Robert Starr, a track coach at Memorial High School, where Metcalf was a student and athlete, explained to jurors that a tent at a track competition “marks your spot” and is similar to a team bench in other sports.

“You just don’t go into someone else’s tent uninvited,” Starr testified.

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In his opening remarks, defense attorney Mike Howard said Metcalf made the first contact.

“In that split second, Melo has a decision to make: how and when to act. Self-defense is useless if you wait too late to defend yourself. … He reacts in a split second of fear, chaos,” Howard said.

Starr told the jury that he rushed to the tent when he saw commotion.

“I see Austin on the ground and his face is purple, and he has a big hole in his chest,” the coach said, choking up in the witness chair.

Another area track coach, Vincent Hooper, testified that he put his arm around Anthony and asked what had happened.

Anthony replied that he stabbed someone who had “put his hands on me,” Hooper recalled.

Anthony faces up to life in prison if convicted of murder.

The parents of both teens have said they were good students who planned to go to college. Metcalf’s father has condemned those who seized on the race of the teenagers after the killing.

Supporters for Karmelo Anthony demonstrate in front of the Collin County courthouse Thursday, June 4, 2026, in McKinney, Texas.
Supporters for Karmelo Anthony demonstrate in front of the Collin County courthouse Thursday, June 4, 2026, in McKinney, Texas.

Tony Gutierrez/AP

“This was not a race thing. This is not a political thing. Please do not comment if you do not know what happened,” Jeff Metcalf said on Fox News’ “America Reports.”

“This is a human being thing,” he said. “This person made a bad choice and it affected both his family and my family forever.”

Authorities have also issued warnings about online discussions surrounding the killing. Frisco Police Chief David Shilson has urged people to beware of posts spreading “misinformation, hate, fear, and division.”