Incident
Patrolman Cavanaugh succumbed to gunshot wounds received the previous day after attempting to stop a robbery on East 21st Street. He was off duty and eating with his wife at a local tavern when a man entered and began robbing the establishment. Patrolman Cavanaugh drew his weapon and fired on the suspect, who then fled on foot. Patrolman Cavanaugh gave chase and in a running shootout was mortally wounded. The suspect was apprehended several days later. The 32-year-old suspect was convicted of first degree murder and was the first person to be put to death in Missouri's new gas chamber on March 4, 1938.
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BO-US-MO-F5D399C3- Stewardship
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- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Patrolman Cavanaugh served with the Kansas City Police Department.
Thank you for your service to the Kansas City community. Gone but never to be forgotten.
Rest easy, Patrolman Cavanaugh.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Patrolman William T. Cavanaugh is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,772 officers honored here.
In MO, 516 of 813 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 63.5% of this state's fallen. That is 63.5 percentage points above the national rate of 0%.
At Kansas City Police Department, 72 of 120 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 60% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. William T. Cavanaugh's cause is highlighted.
How William T. Cavanaugh Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. William T. Cavanaugh is highlighted in Apr.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. William T. Cavanaugh was killed by gun.
Others Who Wore This Badge
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