Mark Barnett murdered or death by force in Wichita-falls, Texas.

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Case Description

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Mark Barnett, a 52-year-old male from Wichita Falls, Texas, was tragically shot and killed on June 25, 2022. The incident occurred in the driveway of a residence on Cartwright Road, where Barnett was found dead from a gunshot wound. The investigation revealed that Jason St. Hilaire, 50, was responsible for the shooting. St. Hilaire also shot and killed Concepta St. Hilaire, 52, in the backyard of the residence before taking his own life in a vehicle in the front yard.

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Links to Additional Sources (8)

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Texomashomepage.com: Double homicide suspect dies, WFPD says case closed

ConchoValleyHomepage.com: Two killed after shooting in Wichita Falls

...View 6 additional sources

Victim Details

name

Mark Barnett

gender

Male

race

White / Caucasian

city

Wichita-falls

state

Date of Death

2022-06-25

Age at Death

First Name

Mark

Last Name

Barnett

Last Updated

11/18/2025

Mark Barnett
Death by Force

Case Description

Links to Additional Sources (8)

Victim Details

Forum Posts (3)

Other Cases from Wichita-falls, Texas

Mark Barnett Death by Force

Case Description

Links to Additional Sources (8)

Victim Details

Forum Posts (3)

Other Cases from Wichita-falls, Texas

Mark Barnett
Death by Force