A discovered bone has helped solve one of Sonoma County’s most unusual cold cases, linking remains found decades apart to the same missing man.
Authorities confirmed that a severed leg found on a Sonoma County beach in 2022 belonged to Walter Karl Kinney, a former banker from Santa Rosa who disappeared in 1999. The identification, announced in March 2026, closed a decades-long mystery in which the same man had been classified as unidentified on two separate occasions nearly 25 years apart.
Kinney was born in San Diego in 1940. He worked as a banker and later moved to Santa Rosa, near the Northern California coastline where his remains were eventually found.
Kinney disappeared in August 1999 at age 59. Soon after, a leg washed ashore at Bodega Head in Sonoma County. The foot was still inside a size 12 Rockport ProWalker shoe fitted with a custom orthopedic insert. With few clues, the Sonoma County Sheriff’s Office could not identify the remains and the case went cold.
A break came in 2003 when a woman in Cleveland, Ohio, contacted authorities, saying her father, Walter Kinney, had lost contact with the family in the 1990s. While periods of silence were not unusual due to his history of alcoholism and related criminal charges, the gap had stretched for years.
Investigators obtained his medical records and noted foot problems. X-rays matched those of the leg found at Bodega Head, leading to a positive identification. Kinney was declared deceased and the case appeared closed.
The case resurfaced on 17 June 2022, nearly two decades later.
A family searching for seashells at Salmon Creek State Beach found a long bone protruding from the sand. Officials later determined it was likely a tibia and noted the presence of surgical hardware. The beach sits about five miles north of Bodega Head, where the first leg was found in 1999.
A search of the area turned up no additional remains or identifying evidence. With no name attached, the remains were classified as "John Doe," officially labeled the "Salmon Creek John Doe."
For nearly four years, the case remained unresolved. In May 2025, the Sonoma County Sheriff’s Office partnered with the DNA Doe Project to identify the remains using investigative genetic genealogy.
A DNA profile was developed and uploaded to GEDmatch in January 2026. Soon after, volunteers began working the case and quickly made progress.
Investigative genetic genealogy combines DNA analysis with family-tree research. It has become a key tool in solving cold cases involving unidentified remains.
Organizations like DNA Doe Project use databases such as GEDmatch and FamilyTreeDNA to find genetic matches. Most matches are distant relatives who share common ancestors.
Founded in 2017, DNA Doe Project has worked on more than 250 cases, driven by the goal of restoring names to unidentified individuals.
In Kinney’s case, volunteers focused on a family that had moved from the East Coast to California, settling in San Diego. While tracing descendants, they identified Walter Karl Kinney, born in 1940, who later lived in Santa Rosa near Salmon Creek.
That lead connected to a critical detail. A team member found an article about human remains discovered at Bodega Head in 1999, including a leg in a size 12 Rockport shoe with a custom orthopedic insert.
Within eight days, investigators identified Kinney as a likely match. The DNA Doe Project submitted its findings and the sheriff’s office confirmed the 2022 remains also belonged to him.