PORTLAND, Ore. (5 May 2026) – More than 20 years after the fully skeletonized remains of a man were found in a wooded area of Southwest Portland, the remains have been positively identified as Robert Lee Horton, who would have been 47 years old at the time of his death.
On December 19, 2004, two people exploring a wooded area near Riverview Cemetery discovered Horton’s remains. They notified local law enforcement immediately and personnel from the Portland Police Bureau and a medicolegal death investigator from Multnomah County responded to lead the investigation.
Along with the human skeletal remains, a fabric lean-to, cooking pans, food items, and clothing were discovered. The clothing was retained as evidence and the skeletal remains were transferred to the Oregon State Medical Examiner’s Office for examination.
The findings of the autopsy and skeletal examination concluded the decedent was a white male adult between the ages of 45 and 55 years old at the time of death and estimated to be between 5’6” and 5’9” tall. However, the cause and manner of death remained undetermined.
In 2010, a DNA sample was sent to the University of North Texas Center for Human Identification for Short Tandem Repeat (STR) DNA sequencing and entry into the Combined DNA Index System (CODIS) and a profile was created in the National Missing and Unidentified Persons System (NamUs). The State Medical Examiner’s Office regularly followed up on the case, and although DNA had been uploaded into CODIS, no genetic associations could be made. Missing persons profiles in databases like NamUs, the Violent Crime Apprehension Program (ViCAP), the Charley Project, and more were searched for new cases to match with the decedent. Unfortunately, there was no progress in the case.
In 2018, the medical examiner’s office was awarded a National Institute of Justice – Forensic DNA Laboratory Efficiency Improvement and Capacity Enhancement Program grant to apply advanced DNA testing techniques on unsolved, unidentified skeletal remains cases. The case was recognized as one that could potentially be resolved by DNA Phenotyping and Investigative Genetic Genealogy provided by OSP’s vendor lab, Parabon NanoLabs. An additional bone sample was submitted for DNA extraction, and a Single Nucleotide Polymorphism (SNP) DNA profile was successfully produced and analyzed.
In January 2022, the first DNA Snapshot© Genetic Genealogy Report investigating distant familial connections was finalized. While matches were abundant, they were distant. To explore possible relationships among the highest‑ranking matches, family trees were created for each, and extensive research was conducted utilizing a variety of sources. Unfortunately, there was little progress in the case.
The Portland Police Bureau conducted additional follow-up and contacted distant relatives seeking clues about missing persons in their families as well as requesting DNA samples to help move the case along. However, the case again stalled.
In late 2025, the medical examiner’s Human Identification Program reached back out to Parabon NanoLabs to inquire whether there were any new leads, and the case was reopened. Incredibly, by early 2026, Robert Lee Horton, born in 1957, had been identified as a likely candidate who had been missing since 2004.
PPB then contacted remaining family members who reported that Robert had been living in Hawaii but moved to Portland in 2004. The family became concerned when they were unable to contact Robert, and he failed to retrieve mail and other items that were sent to him. The case detective obtained contact information for Robert’s living family members and obtained a family reference standard from his elderly mother.
In February 2026, the Human Identification Program sent the family reference standard to Parabon NanoLabs DNA extraction laboratory for testing. By April 2026, the Kinship Inference Report returned definitive conclusions. The results indicated a 100 percent probability of a parental relationship with the unidentified remains based on genetics.
Robert’s family was notified immediately of the positive identification. Sadly, his mother passed away a short time later.
“While no amount of time can lessen the loss experienced by Robert Horton’s loved ones, we hope this identification brings a measure of closure and answers they have long deserved,” Portland Police Chief Bob Day said. “PPB is proud to have played a role in this case with our partners, and we remain committed to using every available tool to seek the truth and provide resolution for families impacted by tragedy.”
“This case highlights the exceptional interagency teamwork required to resolve cold cases of this nature. OSP is grateful for the cutting‑edge genetic genealogy analysis provided by Parabon NanoLabs, the seamless case work by the Multnomah County Medical Examiner’s Office, and the dedicated investigation by the Portland Police Bureau,” said State Forensic Anthropologist Hailey Collord-Stalder, Ph.D. “By collaborating closely with the State Medical Examiner’s Office and combining resources, the agencies were able to advance the case in ways none could have achieved alone.”
# # #