Thomas Deasy

San Francisco Police Department — San Francisco, CA

Felonious

End of Watch January 8, 1916

Age 39

The Vigil Panel 30 ›

Gender Male

Incident Service The Sacrifice Department 105

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: 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 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

Department San Francisco Police Department

Location San Francisco, CA

Platform Identity sfpd.sf.ca.us.gov.nw

Service Record

End of Watch January 8, 1916

Age 39

Gender Male

Incident Details

Cause Felonious

Weapon Handgun; Revolver

Offender Never identified

Officer Thomas Deasy 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 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 1.2 percentage points below the national rate of 54.2%.

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.

San Francisco Police Department

of 106 officers

62.3% Felonious

CA — Statewide

974

of 1,837 officers

53% Felonious

Nationwide

17,623

of 32,508 officers

54.2% Felonious