At the center of Richard Allen’s appeal is a silence jurors could see but not hear. Prison video was shown at trial without audio. The defense says that missing sound mattered.
Allen was convicted on November 11, 2024, in the killings of 13-year-old Abigail Williams and 14-year-old Liberty German. The girls disappeared on February 13, 2017, near the Monon High Bridge in Delphi, Indiana. Their bodies were found the next day on private property.
On December 20, Allen received a 130-year sentence. The trial stage ended. The legal fight did not.
An Appeal Is Not a Retrial
Richard Allen’s Delphi appeal is scheduled for oral argument on September 21, 2026. The question before the court is not whether the public followed the case closely, or whether the trial carried emotional weight. It did. The question is narrower: did legal errors affect the trial in a way that requires a remedy?
Appeals work from the record. Judges review briefs, trial transcripts, exhibits, rulings, and objections. They do not hear new witnesses. They do not restart the investigation. They ask whether the trial court followed the law.
For Allen, the appeal focuses on four main pressure points: excluded prison audio, disputed confession evidence, the search warrant for his home, and limits placed on third-party suspect evidence.
Each issue has its own legal gate. Voluntariness. Probable cause. Relevance. Prejudice. Constitutional defense rights. Those words will matter more than any single dramatic phrase from the courtroom.
The Prison Audio and the Confession Question
The defense argues jurors saw prison videos without audio that would have helped them understand Allen’s mental state. A silent recording can be deceptive. A pause, a hand movement, a stare, or a posture can appear controlled when sound is absent.
According to appellate reporting, Allen’s lawyers say the missing audio included incoherent or delusional statements. They argue that context was necessary because prosecutors relied on Allen’s alleged confessions.
Confession evidence carries unusual force. Jurors tend to hear it differently from other proof. That is why courts ask whether a confession was voluntary and whether the jury had enough context to judge it fairly.
Allen’s brief argues he deteriorated mentally during prolonged pretrial isolation. The defense has described him as recorded, caged, and chained during movement for more than a year. The state rejects that framing and argues the statements were voluntary, reliable, and properly admitted.
The appellate court will not decide whether isolation is harsh as a general matter. It will ask whether the conditions described in this record overbore this defendant’s will, and whether any excluded audio affected the fairness of the trial.
The Delphi Search Warrant Challenge
Another major issue is the search warrant for Allen’s home. WRTV reported that the appeal challenges how investigators secured the warrant in 2022.
A search warrant does not require certainty. It requires probable cause: a fair probability, based on sworn facts, that evidence connected to a crime will be found in the place searched.
Allen’s defense argues the warrant process included false statements and key omissions. The brief specifically challenges statements attributed to Detective Tony Liggett. The defense position is that if the disputed statements and omissions are corrected, the warrant no longer has enough support.
The Indiana Attorney General argues the warrant was valid and that the conviction should be affirmed.
If an appellate court finds a warrant problem, the analysis does not automatically end. Judges may still consider whether evidence should have been suppressed, whether an exception applies, or whether any error was harmless beyond the point requiring reversal.
That is the appellate grind. Small words carry weight. What was said. What was left out. What the issuing judge knew at the time.
The Limits on Third-Party Suspect Evidence
At trial, Allen’s defense also sought to present alternate-investigation theories involving possible third-party suspects. The trial court limited that evidence.
The state argues those limits were proper. Courts generally do not allow defendants to place another name before jurors based only on rumor, motive, or public speculation. There must be a legally sufficient connection to the crime.
That rule protects trials from becoming accusation contests. It also creates hard questions when the defense says the excluded path was real and central to its theory.
Allen’s appellate brief says the trial court denied him the ability to present a complete defense. One line quoted by Court TV called the state’s case a “paper tiger” and said Allen was barred from lighting a match.
Appellate judges will translate that advocacy into doctrine: was the evidence relevant, was it unfairly prejudicial or speculative, and did excluding it violate Allen’s constitutional right to defend himself?
What Comes Next
The Court of Appeals may affirm the conviction. It may find an error but decide it did not change the outcome. It may order a new hearing, a new trial, or another remedy tied to a specific ruling.
Allen remains convicted unless an appellate court changes that judgment.
For Abigail Williams and Liberty German, the appeal cannot restore what was taken. It can only test the process used to reach judgment. Their names should remain at the center of any careful coverage of this case.
The record is now the map. The judges will decide whether jurors heard enough, saw enough, and received the context the law requires.
Follow the appeal by reading claims in pairs: defense argument, state response, then the court’s reasoning when it arrives.
