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The Humboldt County Sheriff’s Office has announced the identification of two previously unknown cases using advanced DNA and genealogy testing. The first case involved the remains of Charles Marrs, who disappeared after falling into the Trinity River in 1993. The second case identified the remains of Gregory Hugh Oliver, whose skull was found on Fickle Hill Road in Arcata in 1996. Both cases were unsolved for decades until the sheriff’s office teamed up with new forensics experts. hereditary.
Why is it important
These cases highlight the power of new DNA technology to provide answers and bring closure to the families of long-lost people. The use of genealogy has become an increasingly important tool for law enforcement to identify unidentified remains and solve cold cases, even decades later. This development also highlights the importance of maintaining complete DNA data to aid in this research.
Details
In the case of Charles Marrs, emergency responders were unable to find his body after he fell into the Trinity River in 1993. Years later, skeletal remains of an arm and hand were found in the same river, but they were not identified at the time. Using funds from a public project grant, the Humboldt County Sheriff’s Office partnered with Othram, a forensic genealogy laboratory, to analyze DNA from the remains. This led them to Marrs’ genetics, which confirmed his identity. In the case of Gregory Hugh Oliver, a partial skull was found on Fickle Hill Road in Arcata in 1996, but the DNA profile could not be compared to those who were not there at the time. The sheriff’s office also worked with Othram, who linked the remains to Oliver, who was reported missing in Florida in 1983.
- In 1993, Charles Marrs, age 63, fell into the Trinity River near Willow Creek and his body was never found.
- In 1995, skeletal remains of a hand and arm were discovered in the Trinity River near the Hoopa airstrip.
- In August 1996, a human skull was found on Fickle Hill Road in Arcata.
- In July 2025, the Humboldt County Sheriff’s Office received a report from Othram indicating that the unidentified remains could be those of Charles Marrs.
- In March 2026, the California Department of Justice confirmed that the body was that of Charles Marrs.
Players
Charles Marrs
A 63-year-old man who went missing after falling into the Trinity River near Willow Creek in 1993.
Gregory Hugh Oliver
A man was reported missing by the Palm Beach County Sheriff’s Office in Florida in 1983, and his remains were found on Fickle Hill Road in Arcata in 1996.
Othram Inc.
The forensic genealogy library is partnering with the Humboldt Sheriff’s Office and the California Department of Justice to analyze DNA samples and develop new leads in these cold cases.
Rep. Jared Huffman
A US representative who has provided public project funds to support DNA testing efforts in these cases.
California Department of Justice
A state agency has partnered with the Humboldt County Sheriff’s Office to provide DNA testing services to confirm the identity of the remains.
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What they say
“These cases highlight the power of new DNA technologies to provide answers and bring closure to the families of long-missing people.”
– Investigator Mike Fridley, Humboldt County Sheriff’s Office
What follows
The Humboldt County Sheriff’s Office continues to encourage anyone with information about these or other missing persons or cold cases to contact Investigator Mike Fridley at (707) 441-3024.
The takeaway
The successful identification of Charles Marrs and Gregory Hugh Oliver through advanced DNA and genealogy testing demonstrates the growing ability of law enforcement to solve even decades-old cold cases. This achievement provides long-awaited closure for the families and highlights the importance of keeping complete DNA information to aid in future research.
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