Roll of Honor
Incident
Officer Thomas Deasy was shot and killed when he attempted to question a suspicious man. He observed the man step from the Washington Street entrance to Alta Plaza. Officer Deasy called to the suspect "What are you doing?" and the man replied "None of your business." When officer Deasy approached to investigate the man struck him with a cane he was carrying. Officer Deasy reached for his gun, but before he could draw the man shot from his hip through his overcoat. The man then drew the revolver from his pocket and fired again, striking Officer Deasy in the neck. Before he died Officer Deasy was able to relay a description of the suspect to responding officers. It was believed at the time that the same man who murdered Police Officer Robert Gushe, of the Oakland Police Department, on March 4th, 1916, was also responsible for Officer Deasy's murder. The man was sentenced to life at hard labor for Officer Gushe's murder.
Survivors
He died in Folsom Prison on July 21, 1934 Officer Deasy was survived by his wife and son.
In Our Keeping
- Permanent identifier
BO-US-CA-D0623D10- Stewardship
- Maintained by NeuraWeb Global Inc.
- 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.
Officer Deasy served with the San Francisco Police Department.
Thank you for your service to the San Francisco community. Gone but never to be forgotten.
Rest easy, Officer Deasy.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Officer Thomas Deasy 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 CA, 974 of 1,837 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 53% of this state's fallen. That is 53 percentage points above the national rate of 0%.
At San Francisco Police Department, 66 of 106 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 62.3% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Thomas Deasy's cause is highlighted.
How Thomas Deasy Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Thomas Deasy is highlighted in Jan.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Thomas Deasy was killed by handgun.
Incident Location
Others Who Wore This Badge
105 officers from San Francisco Police Department are honored on badge.nw. Showing the 16 most recent.
