The murder trial of Karmelo Anthony has not yet reached the testimony that will decide the case.

But online, the verdict is already being fought.

A new claim circulating on social media says Anthony delivered shocking testimony in court “this morning,” allegedly detailing final threats against Austin Metcalf and leaving the victim’s family outraged. So far, that claim has not been confirmed by court reporting or official records.

Public reports say Anthony’s trial began this week with jury selection, not witness testimony. ABC News reported that jury selection was scheduled for Monday and Wednesday in Collin County, Texas, with opening statements expected Thursday if a jury is seated. CBS Texas also reported that the case has drawn intense attention, threats, controversy and racial tension, but described the trial as beginning with jury selection.

Still, the allegation has gained attention because the central dispute in the case is already known: whether Anthony murdered Metcalf, or whether he acted in self-defense.

Anthony is charged with first-degree murder in the April 2025 stabbing death of 17-year-old Austin Metcalf during a high school track meet in Frisco, Texas. Both teenagers were 17 at the time. The confrontation reportedly began under a team tent after Metcalf asked Anthony to leave a seating area.

According to prior reporting on witness accounts and court documents, the confrontation escalated quickly. CBS previously reported that witnesses told police Metcalf pushed Anthony, and Anthony then stabbed him once in the chest. While being detained, Anthony reportedly acknowledged what happened and asked whether Metcalf would survive and whether the incident might be considered self-defense.

That is the legal battlefield prosecutors and defense attorneys are now preparing to fight.

Prosecutors are expected to argue that Anthony’s use of a knife was unjustified and deadly. A New York Post report published today said legal experts believe Anthony may struggle to persuade jurors that he faced imminent mortal danger, especially if prosecutors show he had a weapon ready and allegedly warned Metcalf before the stabbing.

The defense is expected to argue self-defense and to challenge the idea that the stabbing was premeditated murder. Anthony’s legal team has also said the broader public narrative has been distorted by race, fundraising controversy, and social-media outrage.

The case has become nationally charged partly because Anthony’s family raised more than $600,000 through online donations after his arrest. Supporters say the money is needed for legal defense and family safety. Critics say the fundraising deepened the pain for Metcalf’s family and turned a teenager’s death into a political and social-media battle.

For Austin Metcalf’s family, the trial is not an online argument.

It is the public reopening of the worst day of their lives.

Metcalf died after being stabbed at a school track meet. Reports say his twin brother was nearby, and the case has remained emotionally raw because the fatal confrontation unfolded in front of students, athletes and witnesses.

If future testimony confirms that Anthony made threats before the stabbing, that could become important evidence for prosecutors. If testimony instead supports Anthony’s claim that he feared immediate harm, it could strengthen the defense.

But as of now, there is no confirmed public report that Anthony gave new testimony “this morning” describing final threats.

The courtroom has not yet reached that moment.

The viral claim may be ahead of the evidence.

And in a case where one teenager is dead and another faces a possible life sentence, the difference between confirmed testimony and online rumor matters.