Roll of Honor
Douglas Wayne Mashburn
Incident
Correctional Officer Douglas Mashburn was violently stabbed to death by prison inmates as he worked a solo post in the Adult Correctional Facility in Mangilao. It was learned the inmates did not like the ‘straight worker’ attitude that Officer Mashburn exercised over them. He kept watch over particularly violent criminals, most of whom were serving murder sentences. Two inmates were charged with Officer Mashburn's murder. A third inmate who was implicated but not charged with his murder was convicted of a federal robbery charge for another offense. On June 20th, 2008, he was involved in the murder of Correctional Officer Jose Rivera of the United States Bureau of Prisons at the United States Penitentiary Atwater in Atwater, California. Officer Mashburn was a U.S. military veteran.
Survivors
He was survived by his wife, two daughters, father, and siblings.
In Our Keeping
- Permanent identifier
BO-US-GU-5217F06E- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
I served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Correctional Officer Mashburn served with the Guam Department of Corrections.
Thank you for your service to the Hagatna community, and for your service before it. Gone but never to be forgotten.
Rest easy, brother.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Military Service
Douglas Wayne Mashburn served in the United States military before joining law enforcement. Full service record available on salute.nw.
Correctional Officer Douglas Wayne Mashburn is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.
In AN, 1 of 2 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 50% of this state's fallen. That is 4.2 percentage points below the national rate of 54.2%.
At Guam Department of Corrections, 1 of 2 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 50% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Douglas Wayne Mashburn's cause is highlighted.
How Douglas Wayne Mashburn Compares
Offender Outcome
Convicted of murder
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Douglas Wayne Mashburn is highlighted in Jun.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Douglas Wayne Mashburn was killed by edged weapon.
Incident Location
Others Who Wore This Badge
1 officer from Guam Department of Corrections are honored on badge.nw.
