UMVA has learned that chilling new evidence from the Memorial High School stabbing case has been unsealed, revealing the horrifying moments before and after Karmelo Anthony fatally stabbed 17-year-old Austin Metcalf during a track meet in Frisco, Texas.
The newly released footage and photos include surveillance video showing Anthony on the track minutes before the stabbing, standing near where Metcalf would later collapse, bloodied and lifeless.
Among the evidence made public for the first time: a blood-soaked jacket, the folding Ozark Trail multi-tool knife prosecutors say was used in the killing, and stark images of the stadium bleachers where terrified witnesses looked on in horror.
Polygonal moments from police body cameras capture Anthony moments after his arrest—his voice shaking, repeating, “He put his hands on me. I told him not to. He put his hands on me.”
Prosecutors say Anthony used the knife to stab Metcalf inside the team tent after the teen and his brother approached him over an earlier confrontation, demanding he leave their space.
Anthony, who was 17 at the time, admitted to the stabbing but claimed self-defense—a narrative that crumbled under the weight of forensic evidence and eyewitness testimony.
The weapon, a modest 3½-inch blade described by prosecutors as “not particularly a quality knife,” delivered a single, fatal thrust into Metcalf’s chest—a wound so deep it pierced vital organs.
Crime scene photos show the brutal reality: a deep, ragged gash across Metcalf’s chest, measured by a forensic ruler, a visceral testament to the violence that ended too soon.
Another photo places Anthony near the football field, seated in a police vehicle with his hands cuffed—blood visibly staining his left hand, a silent stain on his alibi.
Audio from the arrest scene is chilling: an officer identifies Anthony as the “alleged suspect,” and Anthony, without hesitation, replies, “I’m not alleged. I did it.”
His confession echoed in court, but not before his defense painted him as a victim—claiming he acted under threat, outnumbered and cornered.
That version of events was dismantled by Metcalf’s father, Jeff, who reviewed the footage and confirmed it contradicted the viral narrative circulating online.
“There was no four-on-one,” Jeff Metcalf told UMVA. “The video clearly shows the conversation lasted less than ten seconds. That’s it.”
He added, “He wasn’t jumped. He wasn’t surrounded. There’s a shove—and then a stab. And he runs away. That’s it.”
The footage, according to Metcalf, settles the record—not just for the courtroom, but for a community shaken by the sudden, brutal loss of a promising young athlete.
Anthony was sentenced to 35 years for first-degree murder, with eligibility for parole after serving half his term—a verdict that brought closure to some, but left others divided.
Collin County District Judge John Roach, who authorized the release of the evidence, said transparency was now paramount now that the trial had ended.
“The overwhelming focus on my ruling regarding the media in the courtroom was to protect the process, witnesses, and jury,” he explained.
“Now that the trial is over, it is important to me to provide transparency—not for sensation, but for truth.”
And in the silence after the final gavel fell, the video stood as both evidence and elegy: a raw, unflinching record of what happened beneath that tent—where a friendship fractured, a life ended, and justice, at long last, moved forward.
