Hilery A. Mayo, Jr.

St. Tammany Parish Sheriff's Office — Covington, LA

Accident

End of Watch June 9, 2007

Age 32

Tour of Duty 10 yrs

The Vigil Panel 155 ›

Gender Male

Incident Service The Sacrifice Department 5

Incident

Deputy Sheriff Hilery Mayo was killed in an automobile crash on Louisiana 40, near North Factory Road, while he and another deputy responded to an emergency call.

The patrol car left the roadway, went into a ditch, and then struck a tree. Deputy Mayo was killed and the other deputy, who was riding in the passenger seat, was seriously injured. Both deputies were wearing their seat belts.

Deputy Mayo had served with the St. Tammany Parish Sheriff's Office for 10 years.

Survivors

He is survived by his wife, mother, sister, and brother.

In Our Keeping

Permanent identifier: BO-US-LA-6D65809D
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.
Deputy First Class Mayo gave the St. Tammany Parish Sheriff's Office 10 years.
Thank you for your service to the Covington community. Gone but never to be forgotten.
Rest easy, Deputy First Class Mayo.

— S. Vincent Anthony, U.S. Army 1985-1993

Agency

Department St. Tammany Parish Sheriff's Office

Location Covington, LA

Platform Identity stpso.sttammany.la.us.gov.nw

Service Record

End of Watch June 9, 2007

Tour of Duty 10 yrs

Age 32

Gender Male

Incident Details

Cause Accident

Deputy First Class Hilery A. Mayo, Jr. is one of 10,088 officers lost to accidents in the line of duty across the full record of this memorial — 31% of all 32,508 officers honored here.

In LA, 180 of 595 officers were lost to accidents in the line of duty — 30.3% of this state's fallen. That is 0.7 percentage points below the national rate of 31%.

At St. Tammany Parish Sheriff's Office, 3 of 6 officers on record were lost to accidents in the line of duty — 50% of this agency's fallen.

St. Tammany Parish Sheriff's Office

of 6 officers

50% Accident

LA — Statewide

180

of 595 officers

30.3% Accident

Nationwide

10,088

of 32,508 officers

31% Accident