Roll of Honor
David Warren McGuinn
Incident
Officer David McGuinn was stabbed to death in the maximum-security Maryland House of Correction in Jessup, Maryland, while conducting a nightly prisoner count at 10:00 pm.
Two inmates had jimmied their cell doors and then attacked Officer McGuinn on the fourth tier as he walked past their cells. He was stabbed repeatedly in the neck, head, thighs, and back in areas not protected by his stab-vest. He was able to break free and retreated down two flights of stairs before he collapsed. Other officers immediately came to his assistance. He was transported to a local hospital where he succumbed to his wounds one hour later.
One of the inmates was found incompetent to stand trial. On February 9th, 2012, the other inmate was convicted of first-degree murder. He was subsequently sentenced to life in prison without the possibility of parole.
Officer McGuinn had served with the Maryland State Division of Correction for two years.
Survivors
He is survived by his children and fiancee.
In Our Keeping
- Permanent identifier
BO-US-MD-F4AEBDFA- 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 never knew you. I am standing here anyway.
Officer McGuinn gave the Maryland Department of Public Safety and Correctional Services 2 years.
Thank you for your service to the people of Maryland. Gone but never to be forgotten.
Rest easy, Officer McGuinn.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Officer David Warren McGuinn 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 MD, 195 of 377 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 51.7% of this state's fallen. That is 2.5 percentage points below the national rate of 54.2%.
At Maryland Department of Public Safety and Correctional Services - Division of Correction, 6 of 6 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 100% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. David Warren McGuinn's cause is highlighted.
How David Warren McGuinn Compares
Offender Outcome
Sentenced to life
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. David Warren McGuinn is highlighted in Jul.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. David Warren McGuinn was killed by edged weapon.
Incident Location
Others Who Wore This Badge
5 officers from Maryland Department of Public Safety and Correctional Services - Division of Correction are honored on badge.nw.
