Is the area on the Willamette River that you're talking about around Meldrum Bar Park?
Adventures with Purpose has a live stream video with that park in the title, I believe they scanned that section of the Willamette River with sonar. Not to say they couldn't have missed something just thought...
Are you sure that's not earlier? everything I find is telling me it was celebrated on the second monday since 1971.
https://en.wikipedia.org/wiki/Uniform_Monday_Holiday_Act
So the day they disappeared was a Sunday, the next day was Columbus Day that they must have had off, then their return to duty was on the 10th. Makes sense they would plan a trip with their extra day off, with the car missing I think the Missouri River should be checked too. I hope that's not...
What's with all the different vehicles listed on each site?
https://oag.ca.gov/missing/person/robert-glen-rietzel
Multiple colored 1994 Chrysler LHS with CA license plate 3HJT504
https://www.namus.gov/MissingPersons/Case#/122933/details?nav
Black 2002 Ford Mustang with CA license plate 5PGF828...
An update was posted on August 29th by the Jacksonville Police Department
https://www.facebook.com/share/p/1CkVFv329a/
His vehicle was located on 08/23/2025 in Grant County. Namus was updated with this too.
He is still missing.
This would be a great case for modern sonar search teams, it doesn't appear any have taken it on yet even though there are a few based in Oregon. I tagged the ones I know of in a FB post for him.
Today is the 43rd anniversary of his disappearance.
Thank you for sharing.
Chaos Divers was just up there searching for him, they located another person missing since 2001 in Hodgkins IL the same way, also unexpected. This location Hiep was found isn't on the route to his work, I hope more answers are able to be found on why he was there :(
More missing with motorcycles associated:
William Donald Leach - 1976 California
https://www.namus.gov/MissingPersons/Case#/17564?nav
Gus Henry Hoffman - 1978 California
https://www.namus.gov/MissingPersons/Case#/23522?nav
Gary Boutilier - 1978 Tennessee...
"His wallet was found in the Dearborn, Michigan area in 2001." (I'm guessing you meant 2021?)
Have there been any attempts to locate him through the motorcycle, new registration, etc. or cell records? or do the police believe it's voluntary so they don't make those efforts? I hope he turns up safe.
Robert, 44, was last seen in Las Vegas, Nevada having lunch with his niece on September 5th, 1986. He told her he was going to be paid to drive two subjects to Kingman, Arizona. He drove a yellow 1974 Ford Pinto with Oregon plates LLT148.
In November of 1986 he was reported missing to the Las...
This isn't a perfect list, but on that topic these are all the recovered missing with vehicles i've been able to find so far (most where the vehicle was missing for atleast 6 months). Not many are suspected to be foul play, though even when they're found it can be hard to say unless there's...
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