41 years later, man who died in Snohomish River identified

Steven Lee Knox, 24, went missing in 1980. Genetic genealogy helped identify him last month.

A man was found dead in the Snohomish River in June 1980. Forty-one years later, cold case investigators used DNA and forensic genealogy to identify him as Steven Lee Knox, a U.S. Air Force veteran from Wisconsin who was living at the time in Everett.

A man was found dead in the Snohomish River in June 1980. Forty-one years later, cold case investigators used DNA and forensic genealogy to identify him as Steven Lee Knox, a U.S. Air Force veteran from Wisconsin who was living at the time in Everett.

EVERETT — Boaters found his body in the Snohomish River on June 20, 1980, near Dagmar’s Marina.

He had apparently drowned, and had been deceased for up to two months, a medical examiner at the time determined. His body’s deterioration made it impossible to use his fingerprints. He had no wallet. There was no way to identify him.

For 41 years, he was known only as John Doe, case No. 80-6-444.

Until now.

His name is Steven Lee Knox, the Snohomish County Medical Examiner’s Office announced on Thursday. He was 24 when he died.

The medical examiner’s office said it identified him with help of an investigative method called genetic genealogy — the same method that has been used to solve high-profile cold case homicides in Snohomish County and across the country.

Knox’s body was exhumed in 2018 so a DNA sample could be obtained. That was given to Othram, a forensic lab in Texas, which analyzed the sample and built a DNA profile. Othram completed the profile in June, and the medical examiner’s office then uploaded it to GEDmatch, a website where people can share genetic information.

There was a match. A family member of the John Doe also had uploaded their DNA, making it possible for the medical examiner’s office to build a family tree.

An investigator from the medical examiner’s office found multiple potential family members and contacted two of them. They confirmed they had a brother, Steven Lee Knox, who went missing in May 1980. His parents died before he was identified.

In mid-July, investigators confirmed the identification using dental records.

Knox grew up in Wisconsin and served in the U.S. Air Force. After his honorable discharge, he lived in Everett with family.

In 1980, he was buried at Cypress Lawn Memorial Park in Everett.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

The Sana Biotechnology building on Tuesday, Aug. 19, 2025 in Bothell, Washington. (Olivia Vanni / The Herald)
Bothell loses planned biotechnology manufacturing plant

New biotechnology manufacturing jobs in Bothell are on indefinite hold.

Two troopers place a photo of slain Washington State Patrol trooper Chris Gadd outside district headquarters about 12 hours after Gadd was struck and killed in a crash on southbound I-5 on March 2 in Marysville. (Ryan Berry / The Herald)
One More Stop targets drunk driving this weekend in honor of fallen trooper

Troopers across multiple states will be patrolling from 4 p.m. Friday to 5 a.m. Monday.

Students walk outside of Everett High School on Wednesday, Sept. 17, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
SnoCo students perform well on metrics, state data shows

At many school districts across the county, more students are meeting or exceeding grade-level standards compared to the state average.

Customers walk in and out of Fred Meyer along Evergreen Way on Monday, Oct. 31, 2022 in Everett, Washington. (Olivia Vanni / The Herald)
Everett council rebukes Kroger for plans to close Fred Meyer store

In the resolution approved by 6-1 vote, the Everett City Council referred to store closure as “corporate neglect.”

Logo for news use featuring the municipality of Arlington in Snohomish County, Washington. 220118
A divided Arlington City Council votes to reduce SkyFest grant by half

After months of debate over lodging tax funds, the council voted 4-3 to award the popular aviation event $20,000.

Logo for news use featuring the municipality of Stanwood in Snohomish County, Washington. 220118
Stanwood jail costs expected to exceed budget by end of 2025

As of September, the Stanwood police has spent $53,078 of its $59,482 annual jail budget.

Alex Waggoner is handcuffed after being sentenced to 19 years for the murder of Abdulkadir Shariif Gedi on Wednesday, Sept. 17, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Edmonds man sentenced to more than 19 years for death of rideshare driver

Judge Richard Okrent sentenced Alex Waggoner, 23, Wednesday after a jury earlier found him guilty of murder in the 2nd degree.

Snohomish County Sheriff's Office K-9 vehicle along U.S. 2 where a man was shot on Wednesday, Sep. 17, 2025, in Sultan, Washington. (Snohomish County Sheriff's Office)
Suspect arrested in King County after person shot near Sultan along US 2

The assault investigation closed down east and westbound lanes of U.S. 2 Wednesday afternoon.

A person walks past the freshly painted exterior of the Everett Historic Theatre on Sept. 24, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Historic Everett Theatre reopens with a new look and a new owner

After a three-month closure, the venue’s new owner aims to keep the building as a cultural hub for Everett.

Cutting the ribbon to celebrate recent upgrades at the Sultan Wastewater Treatment Plant on Sept. 24. (Provided photo)
Sultan celebrates new park and treatment plant upgrades

Two ribbon-cuttings occurred with the community and elected officials from the city, county and state.

The Washington State University Everett campus on Wednesday, July 25, 2018 in Everett, Wa. (Olivia Vanni / The Herald)
Everett allocates funding toward north Broadway bridge design

The $2.5 million in grant dollars will pay for the design of a long-awaited pedestrian bridge near Everett Community College.

Two workers walk past a train following a press event at the Lynnwood City Center Link Station on Friday, June 7, 2024, in Lynnwood, Washington. (Ryan Berry / The Herald)
Sound Transit weighs possible savings on Everett Link extension

Amid rising costs, the agency could adjust the early design of the Everett Link plan. The proposed changes would not remove stations or affect service levels.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.