Roll of Honor
Incident
Sergeant Mark Scianna was killed in an automobile accident at the intersection of Lockhill-Selma and George Roads at 10:34 pm.
He had activated his emergency equipment and attempted to turn onto George Road when his vehicle left the roadway and struck a utility pole. The impact caused Sergeant Scianna to be ejected from the vehicle, which then rolled over and struck a second utility pole.
Dispatchers were alerted to the crash when Sergeant Scianna's emergency button was activated on his portable radio. Bystanders also called 911 to report the crash and attempted to douse the flames with a garden hose until emergency crews arrived. Sergeant Scianna was pronounced dead at the scene.
Sergeant Scianna has served with the Bexar County Precinct 3 Constable's Office for two years. He had previously served with the Castle Hills Police Department for 10 years and the New Britain (Connecticut) Police Department, and had served as an officer for nearly 28 years in total.
Survivors
He is survived by his three sons.
In Our Keeping
- Permanent identifier
BO-US-TX-F5A709AC- Stewardship
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- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
28 years. You could have gone home.
Sergeant Scianna gave the Bexar County Constable's Office 28 years. Still answering calls at the end.
Thank you for your service to the San Antonio community. Gone but never to be forgotten.
Rest easy, Sergeant Scianna.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Sergeant Mark Luis Scianna 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 TX, 653 of 2,421 officers were lost to accidents in the line of duty — 27% of this state's fallen. That is 4 percentage points below the national rate of 31%.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Mark Luis Scianna's cause is highlighted.
How Mark Luis Scianna Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Mark Luis Scianna is highlighted in Aug.