The 364th Expeditionary Sustainment Command confirmed that Master Sgt. Garvin was a truckmaster assigned to the 737th Transportation Company; years of service were not included in the release.
The tragic incident remains under investigation by authorities at Joint Base Lewis-McChord although it has been confirmed that Garvin shot himself Thursday morning. No photo of the Soldier has been released.
Based in Marysville, Wash., the 364th Expeditionary Sustainment Command is made up of 40 Reserve units in seven Western states including Washington and Oregon.
The Yakima Training Center is a year-round facility and is used by the Army for maneuver training as well as live-fire training exercises.
This tragedy comes in the same week that results of a study indicate rates of mental disorders are higher in warfighters than in the general population at large.
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