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Cold Case Investigations

Read and review these cases and help us solve a Multnomah County Sheriff's Office cold case.

A "cold case" is a homicide or murder that has been thoroughly investigated, with all leads exhausted, and yet remains unsolved. 

Our detectives are assigned cold cases to revisit and determine if there are any new and viable leads. Our hope is to bring justice and closure to victims and their families, no matter how long it takes. 

Please read and review these cases to see if you can help us solve a cold case.

If you have any information that may help detectives solve one of the cases below, email us or call 503-988-0560.

If you wish to report anonymously, please report tip to Crime Stoppers of Oregon.

Old photo of John Warner Nolan.
John Warner Nolen
Cold Case: 92-3882

On April 29, 1992, the body of an unidentified white male was discovered in the Columbia River by Kelley Point near the mouth of the Willamette River.

Date Discovered:
Age at Incident:
45
Gender:
Male
Portrait photo of Clarence Richards.
Charly Richards
Cold Case: 92-7937

Charly was last seen alive on August 21, 1992 when he left work at OHSU.

Date Discovered:
Age at Incident:
24
Gender:
Male
Race:
White
Portrait photo of Bonifacio Rodriguez-Rodriguez.
Bonifacio Rodriguez-Rodriguez
Cold Case: 94-6543

Bonifacio was last seen alive on the evening of September 25, 1994.

Date Discovered:
Age at Incident:
31
Gender:
Male
Race:
Hispanic

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