Incident
Detective Robert Wallis was killed when he was struck by a man fleeing other officers. Detective Wallis and his partner were in an unmarked cruiser monitoring the chase of a suspect who had just committed an armed robbery. The suspect was driving northbound on Tennyson Street directly towards their unmarked cruiser at West 48th Avenue and Tennyson Street. The two detectives attempted to escape their vehicle, but Detective Wallis was struck by the suspect as he attempted to run across the street. The suspect was later shot and killed by other officers. Detective Wallis had been with the Denver Police Department for over 20 years.
Survivors
He was survived by his wife, daughter, two sons, sister, and a 5-day-old granddaughter.
In Our Keeping
- Permanent identifier
BO-US-CO-26EF49EB- 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
20 years. You could have gone home.
Detective Wallis gave the Denver Police Department 20 years. Still answering calls at the end.
Thank you for your service to the Denver community. Gone but never to be forgotten.
Rest easy, Detective Wallis.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Detective Robert W. Wallis 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 CO, 235 of 360 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 65.3% of this state's fallen. That is 11.1 percentage points above the national rate of 54.2%.
At Denver Police Department, 55 of 74 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 74.3% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Robert W. Wallis's cause is highlighted.
How Robert W. Wallis Compares
Offender Outcome
Shot and killed
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Robert W. Wallis is highlighted in Feb.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Robert W. Wallis was killed by automobile.
Incident Location
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