Dallas criminal appeals lawyer John Helms breaks down the Karmelo Anthony case on FOX 4 and explains what an appeal can and cannot do

Former federal prosecutor walks Texas families through the difference between a second trial and a real appellate issue

DALLAS, TEXAS, Sept. 16, 2026 (GLOBE NEWSWIRE) --  Most people believe an appeal is a second chance to argue the case to a fresh set of judges. Dallas criminal defense and appellate attorney John Helms spent his FOX 4 Dallas-Fort Worth interview correcting that assumption, using the Karmelo Anthony murder case to show what actually has to happen for a Texas conviction to be challenged.

Anthony was convicted of murder in the fatal stabbing of Austin Metcalf at a Frisco track meet and sentenced to 35 years in prison. The case has since moved into post-trial litigation involving the trial judge, evidentiary questions, and disputes over what was and was not agreed to during the trial. Helms, who was not involved in the case, appeared on FOX 4 as a legal commentator to explain the process to viewers following it.

His central point is one every convicted defendant and worried family member needs to hear early.

"A lot of people don't know that in an appeal, you're not just asking for a second opinion from the Court of Appeals. You have to identify some sort of legal error that occurred in the trial court."

Helms expanded on that point and several others in a new companion article on his website, which readers can find here: Karmelo Anthony Appeal: What Happens After a Texas Murder Conviction.

An appeal reviews the record; it does not retry the case

An appeal is not a new trial. No new witnesses take the stand. No new evidence gets introduced. The appellate court reads the record built at trial and looks for legal errors that were properly raised and preserved.

That single fact reshapes how a case has to be handled from the very first day. As Helms put it, an appellate court will defer to the jury's verdict unless there is a genuine legal error to point to. A lawyer who believes the trial simply could have gone better does not have an appeal. A lawyer who can identify a specific, preserved error in the record might.

Why most convictions are hard to overturn

Dallas appeals lawyer John Helms

Helms was candid with FOX 4 about the odds. Based purely on the numbers rather than the merits of any particular argument, most appeals end with the trial court being upheld. He said the odds are not strong for Anthony to win relief, and he was careful to separate that statistical reality from any judgment about the specific issues in the case.

That honesty is the point. Families deserve a realistic read, not a promise. Every appeal rises or falls on its own record, its own preserved objections, and the law that applies to the specific issues raised.

Preserving error at trial is where appeals are won or lost

The most important lesson in the Anthony discussion has nothing to do with celebrity or headlines. It is preservation of error, the requirement that an objection be made at trial so the judge has a chance to rule on it before it can become an appellate issue.

"In general, when you're appealing, you have to have made some sort of an objection in the trial court."

If an objection was never made, the issue is usually gone for good. This is why Helms has long argued that trial lawyers need appellate thinking in the room while the trial is still happening, not after the verdict is read.

The record matters more than the handshake

One unusual wrinkle in the Anthony proceedings was what FOX 4 described as a gentleman's agreement between the parties about certain information. Helms explained that such an understanding can be difficult to enforce when it was never written into the official record.

If the scope of an agreement is disputed and nothing specific was placed on the record, an appellate court has little to work with. The lesson generalizes far beyond this one case. What can be proven from the official record is what counts, not what people remember agreeing to in chambers.

A different judge for the post-trial fight

Helms also addressed why the trial judge was replaced for the post-trial proceedings, with a retired judge assigned to handle the matter. He said he reviewed the recusal motion and believed the change was appropriate.

The standard is not whether the judge personally feels fair. It is whether a reasonable, objective observer could question the appearance of fairness. That distinction protects public confidence in the courts, especially when the same judge who ran a trial is later asked to decide whether that trial went wrong.

Which court hears North Texas appeals

For convictions out of Dallas and Collin counties, state appeals go to the Fifth Court of Appeals in Dallas. That covers defendants in Dallas, Frisco, Plano, McKinney, Allen, Richardson, Garland, Rockwall, and the surrounding communities. Texas also has a separate high court for criminal cases, the Texas Court of Criminal Appeals. The path a case takes depends on the issues, the posture, and the court involved.

Helms lays out that process, and what to look for in an appellate lawyer, on his practice page: Dallas Criminal Appeals Lawyer.

Why Helms gets asked to explain these cases

Helms has spent more than two decades in criminal law. He served as a federal prosecutor in the Northern District of Texas and clerked for the Chief Judge of the United States Court of Appeals for the Fifth Circuit. He now handles serious state and federal criminal defense and appeals throughout Texas. That mix of trial and appellate experience is why local media turn to him to translate complicated post-trial questions into plain language.

His takeaway for families facing a conviction is simple. A guilty verdict does not tell you whether a viable appeal exists. Only a careful review of what happened in the trial court can answer that.

About John Helms

John Helms is a Dallas criminal defense and appellate attorney with more than 25+ years of criminal justice experience. His background includes serving as a federal prosecutor in the Northern District of Texas as an assistant United States attorney (AUSA) and as a law clerk for the Chief Judge of the United States Court of Appeals for the Fifth Circuit. The Law Office of John M. Helms handles serious state and federal criminal indictments and criminal appeals in North Texas and statewide.

Media Contact

Law Office of John M. Helms 

8100 John W. Carpenter Fwy., Suite 101, Dallas, Texas 75247 

Phone: 214-666-8010 

Media contact: William Perras 

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• Dallas appeals lawyer John Helms breaks down the Karmelo Anthony case on FOX 4 and explains what an appeal can and cannot do