Convicted Murderer Filed Motion for New Trial

Karmelo Anthony seeks to overturn his 35-year prison sentence for a 2025 track meet stabbing.

Updated on Sept. 21, 2026 in Track & Field

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Karmelo Anthony has filed a motion for a new trial, challenging his 35-year prison sentence for a 2025 murder conviction in Frisco. AI Illustration. Upload story photo >

Karmelo Anthony has filed a motion for a new trial following his conviction for the murder of 17-year-old Austin Metcalf. Anthony was previously sentenced to 35 years in prison for the killing, which took place at a Frisco high school track meet.

Why it matters

The appeal centers on a 75-page pretrial evidence notice that Anthony claims influenced his decision not to testify. He argues that confusion regarding a pretrial character evidence agreement compromised his legal defense.

Karmelo Anthony received a 35-year prison sentence following his murder conviction, a trial that featured testimony from 20 witnesses. Prosecutors previously submitted a 75-page Rule 404(b) notice outlining alleged prior bad acts.

The players

Karmelo Anthony

He is the individual convicted of murdering Austin Metcalf at a track meet.

Austin Metcalf

He was the 17-year-old victim killed during the track meet incident in Frisco.

The details

Anthony claimed self-defense during his trial for the incident involving Austin Metcalf, but the jury ultimately convicted him of murder. The motion for a new trial targets the prosecution's expansive Rule 404(b) filing, which detailed alleged threats and violent text messages prior to the court proceedings.

Timeline

  1. April 2, 2025: Karmelo Anthony killed 17-year-old Austin Metcalf at a high school track meet.

  2. One month before trial: Prosecutors filed the 75-page Rule 404(b) evidence notice.

The Big Picture

The appeal hinges on the judicial interpretation of Federal Rule of Evidence 404(b). This story highlights how the strategic use of prior character evidence can fundamentally reshape a defendant's courtroom strategy and testimony decisions.

The filing of this motion marks a shift in the legal trajectory for this case, potentially delaying finality in the Collin County justice process. The appeal could lead to a re-evaluation of how evidentiary notices are presented to defense teams in future local criminal trials.

The takeaway

The case underscores the significant impact that pretrial disclosure agreements have on a defendant's right to testify. Legal experts often monitor these appeals to see how courts balance the admission of prior character evidence against the rights of the accused.

Further reading

For more information on legal proceedings related to local incidents, visit the Track & Field section.