
A bone fragment pulled from the McKenzie River has been confirmed to belong to Shane Sprenger, the 47-year-old Blue River man who vanished under suspicious circumstances near Blue River Reservoir in November 2021. His family has now been notified, but Lane County investigators say the case remains far from closed.
A Four-Year Search Finally Yields Answers
Sprenger disappeared in November 2021 from the area around Blue River Reservoir, according to KATU, which reported that friends and family searched for him at the time alongside investigators. In June 2023, people discovered partial human remains in the McKenzie River drainage area, and authorities later confirmed those remains belonged to Sprenger. Follow-up searches conducted after that discovery did not turn up any additional evidence, the station reported.
Three months later, in September 2023, someone found another bone fragment in the McKenzie River. Accounts differ on which lab ultimately tied that fragment to Sprenger. KATU's reporting states that Sprenger's family raised money, with help from Dylan's Legacy — a nonprofit that assists families of missing people — to have the fragment tested for DNA at Bode Technology in Virginia, and that the lab confirmed the match, with the Lane County Sheriff's Office then notifying the family. A separate account from The Chronicle instead reports that the bone fragment was sent to the Oregon State Police crime lab, which confirmed on Aug. 28 that it belonged to Sprenger.
Investigators Still Have Questions
Even with the identification settled, the sheriff's office says detectives continue to investigate and consider the case active, the station's report notes. That posture echoes comments a Lane County sheriff's sergeant gave in 2023, when the investigation was still unfolding. Eugene Weekly attributed the sergeant's statement, “We did not locate his entire body, we are still looking for that,” to a July 7 KMTR News story.
The same sergeant also addressed whether Sprenger's death involved foul play. Eugene Weekly attributed the sergeant's statement, “We don't have any reason to believe that there is foul play involved, but we also don't have reason to rule it out at this point,” to a July 7 KMTR News story. That ambiguity has persisted through the case's multiple turns, from the initial search near Blue River Reservoir to the two separate discoveries of remains along the McKenzie River about three months apart.
How To Help The Investigation
Anyone with information is asked to contact the Lane County Sheriff's Office and reference case No. 21-6268. KATU's report lists the office's number as 541-682-4141, while a separate account from KOIN gives a different number, 541-682-4150, for tips on the same case. Investigators have not said whether the discrepancy reflects a change in contact line or a reporting error.









