At a Glance
- Constable Aaron Armstrong died after a shooting in north Austin
- Suspect arrested before 4 p.m. by U.S. Marshals and APD
- Reward up to $1,000 offered for information

Why it matters: The incident highlights the risks faced by off-duty law-enforcement officers and the swift cooperation between local and federal agencies.
A Caldwell County Constable was shot and later died while working an off-duty security assignment in north Austin, prompting a rapid investigation that led to a suspect’s arrest and a reward offer.
Incident Details
The shooting occurred near the intersection of North Lamar Boulevard and West Rundberg Lane. The call was received at 2:10 a.m., and APD found the constable in the parking lot with severe trauma. Investigators believe the victim was shot by an unknown suspect.
- Off-duty security position
- Unknown suspect
- Medical personnel attempted to save him
| Event | Time | Notes |
|---|---|---|
| Call received | 2:10 a.m. | APD dispatched |
| Suspect arrested | before 4 p.m. | By U.S. Marshals Lone Star Task Force, APD Air Support, K9, DPS |
Investigation and Public Appeal
Detectives are asking the public for witnesses who may have been at Club Rodeo at the time of the shooting. The constable’s office emphasized the urgency of finding information.
Caldwell County Constable’s Office Precinct 3 said:
> “One of our deputies, while working an off-duty security position at an Austin establishment, was involved in a shooting. Despite the efforts from medical personnel, the deputy succumbed to his injuries after being transported to the hospital.”
- Tip line: 512-477-3588
- Anonymous tips via Capital Area Crime Stoppers
- Reward up to $1,000
Key Takeaways
- Constable Aaron Armstrong died in a north Austin shooting.
- A suspect was arrested before 4 p.m.
- A $1,000 reward is available for information.
The case underscores the risks faced by law-enforcement officers even when off duty and the importance of community cooperation in solving the crime.

