

Aaron Armstrong, beloved son, brother, friend, and dedicated public servant, passed away on January 4, 2026, while performing private duty security work. A deputy with Caldwell County Precinct #3, Aaron lived a life rooted in service, integrity, and kindness. His loss is deeply felt across every community he touched—from Caldwell County to Smithville and throughout the many circles he moved in with ease.
Well-known both in and out of uniform, Aaron built lasting connections everywhere he went. Many came to know him through his years with Caldwell County and the Smithville Police Department, while others recognized him from his long-time work at Gun Warehouse and along the gun show circuit. What people remember most is how Aaron always had time for a conversation. Whether he was on duty or standing in line at the grocery store, he had a gift for making people feel seen.
Aaron’s personality carried two sides in perfect balance: the serious, steady professionalism captured in his work ID photos, and the playful, fun-loving spirit that came out the moment he was among friends or family. Both sides reflected the same heart. A heart that genuinely cared about the well being of others.
His love of the outdoors began early. Growing up in Odessa, Aaron and his brother were often found exploring the pastureland behind their home, riding bikes through the neighborhood, battling it out on Atari games, or joining their father for target practice. These childhood memories shaped the curious, adventurous man he became.
As an adult, Aaron found peace on the water. He spent countless hours kayaking on the lakes around Austin, fishing, and enjoying the quiet moments nature offered. He was often accompanied by his beloved West Highland Terrier, Watson—affectionately known as “White Dog”—who never missed a chance to join him on walks or outdoor excursions.
Aaron’s legacy of service extended well beyond his official duties. A family friend recalled, “He devoted a lot of his personal time to literally keeping people safe. He worked in security, he worked in law enforcement, he was constantly helping people.” That same friend remembered organizing a gun safety session for a group of women. Aaron volunteered his time—showing up with patience, kindness, and a genuine desire to make sure everyone left feeling informed and safe. He refused payment, insisting that helping the community was reward enough.
Another friend, who met Aaron while he worked security at her church in Northwest Austin, said he quickly became “a Sunday morning staple.” His presence was reassuring, his smile familiar, and his reliability unmatched. It was in places like this a church lobby, a parking lot, a community event—where Aaron quietly made the biggest difference.
Deputy Constable Aaron Armstrong will be remembered as a man who lived his values. He served others not because it was his job, but because it was who he was. His warmth, dedication, and steady presence will continue to inspire all who knew him.
He leaves behind a community grateful for his life, touched by his generosity, and forever changed by his unwavering commitment to keeping others safe.
A public visitation will be held at Shoreline Church | North Campus, located at 15201 Burnet Rd, Austin, Texas, 78728, on January 13, 2026, at 9:30 am, followed by his service at 11:00 am.
The committal service will take place at North Belton Cemetery in Belton, Texas, 76513, on January 13, 2026.
In lieu of flowers, donations may be directed to a Police Organization of your choosing in Aaron's name.
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