Rest in Peace, Deputy Constable Aaron Armstrong of the Caldwell County Constable’s Office - Precint 3 in Texas. End of watch: January 4, 2026. Deputy Constable Armstrong served with the Caldwell County Constable’s Office for over a year and had previously served with the Smithville Police Department. The @FBI sends our prayers and condolences to Deputy Constable Armstrong’s family, friends, and colleagues left behind. They will have our full support.