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DNA Testing Shows No Link Between Douglas Carter and Murder Scene

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Defense attorneys for Douglas Carter announced that DNA testing from the Utah Bureau of Forensic Services shows no biological link between Carter and the 1985 murder scene. This development follows a 2025 Utah Supreme Court ruling that vacated Carter's death sentence due to prosecutorial misconduct and witness tampering.

Key takeaways

  • DNA testing from the Utah Bureau of Forensic Services shows no link between Douglas Carter and the 1985 murder scene evidence.
  • The Utah Supreme Court vacated Carter's death sentence in 2025 after finding the state violated his due process rights.
  • Investigations revealed that police pressured witnesses Epifanio and Lucia Tovar to lie and provided them with $4,000 in undisclosed financial assistance.
  • The original prosecution relied on a confession and witness testimony rather than physical evidence.
  • The state's failure to disclose favorable evidence and correct false testimony was found to have prejudiced Carter's original trial.

Defense attorneys for Douglas Carter announced that recent DNA testing conducted by the Utah Bureau of Forensic Services shows no biological link between Carter and the 1985 murder scene, a development that provides significant support to Carter as he prepares for a retrial. The findings suggest that Carter's DNA was not present on the evidence collected from the crime scene where Eva Olesen was killed.

Historical Context of Conviction

The absence of DNA evidence comes decades after Carter was originally convicted and sentenced to death for the 1985 murder of Eva Olesen in Provo, Utah. According to a 2025 Utah Supreme Court opinion, the original prosecution relied heavily on a confession signed by Carter and testimony from two witnesses, Epifanio and Lucia Tovar, rather than physical evidence.

At the time of the original trial, no physical evidence was found that directly tied Carter to the crime scene. Instead, the prosecution's case was built on the testimony of the Tovars, who claimed they saw Carter just before and after the murder and that Carter had admitted to the crime during their interactions.

Supreme Court Vacates Sentence

The legal landscape of the case shifted dramatically following revelations of significant misconduct by state officials. In a May 15, 2025, opinion, the Utah Supreme Court affirmed a lower court's decision to vacate Carter's conviction and sentence, ordering a new trial after finding that the State had violated Carter's constitutional right to due process.

Specifically, the Fourth Judicial District Court held an evidentiary hearing which determined that the trial and sentencing were tainted by serious misconduct involving the lead prosecutor, the lead investigator, and another police officer. The court found that the State had suppressed evidence favorable to Carter and failed to correct false testimony provided during the trial.

Evidence of Prosecutorial Misconduct

The misconduct identified by the courts centered on the treatment of the key witnesses, Epifanio and Lucia Tovar. Decades after the trial, the Tovars signed sworn declarations stating that law enforcement had pressured them to make untrue statements and threatened them with deportation and separation from their son.

According to the court's findings, the lead investigator suborned perjury by instructing Epifanio Tovar to falsely deny receiving financial assistance from the police. The court also found that the prosecutor was aware the Tovars had received approximately $4,000 in financial assistance in the months leading up to the trial but failed to disclose this information to the defense or correct the false testimony provided by Epifanio Tovar on the stand.

Modern Forensic Capabilities

The role of forensic science in the case has evolved significantly since the original 1985 investigation. The Utah Bureau of Forensic Services, which provides a full range of forensic disciplines to support law enforcement, manages the biological and DNA analysis used to evaluate evidence.

In modern investigations, the Bureau's Biology section analyzes biological evidence submitted by law enforcement to assist in solving crimes. This work is often supported by the Combined DNA Index System (CODIS), a database managed by the FBI that allows crime scene DNA profiles to be searched against a vast database of profiles from convicted offenders, arrestees, and other sources. While CODIS can provide investigative leads, a formal DNA sample must still be collected from a suspect for statistical analysis to confirm a match.

Path Toward Retrial

The new DNA results, which show no match between Carter and the murder scene evidence, represent a critical piece of information as the state prepares for a new trial. The original conviction was overturned because the court determined that the constitutional violations regarding suppressed evidence and uncorrected false testimony prejudiced Carter at both the guilt and sentencing stages.

As the case moves forward, the focus remains on the intersection of forensic science and the integrity of the judicial process. The Utah Supreme Court's decision to grant Carter postconviction relief ensures that the legal system must address the historical failures in the Olesen investigation.

Forensic Services Mission

The Utah Bureau of Forensic Services continues to provide comprehensive testing services to assist law enforcement agencies. Their mission includes providing accurate and reliable analysis to help officers, detectives, and prosecutors build strong cases and ensure justice through forensic solutions.

Sources used (5)

How this story was made

Corroborated by 3 independent sources

Utah News confirmed this story across multiple independent newsrooms before publishing.

law.justia.comforensicservices.utah.govksl.com

5 sources gathered

Coverage collected from the outlets listed above. · August 22, 2026

Written by AI

Utah News AI (on-device model) · drawing on 3 outlets · July 31, 2026

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Passed editorial quality review (100/100)

Published

24 days ago · July 31, 2026

This story was written by AI from the public sources listed above and passed automated quality review before publishing.

Article details

CategoryMulti-Source
CityProvo, Salt Lake City, St. George
ToneNeutral
SourceAI Generated