GPS records and an anonymous tip helped authorities trace a 20-year-old man accused of firing at a Texas trooper.
SAN ANTONIO, Texas — A court-ordered ankle monitor became a key piece of evidence in the investigation of an Oct. 30 shooting at a Texas Department of Public Safety trooper, helping authorities connect a 20-year-old San Antonio man to the area and route described by investigators, according to an arrest affidavit.
Adrian Amador was arrested on a warrant charging him with aggravated assault with a deadly weapon after investigators received an anonymous tip naming him as a possible suspect. Records from the GPS monitor he was required to wear while out on bond placed him near locations connected to the investigation, authorities said. Amador has denied taking part in the shooting.
The case began early Oct. 30 outside a Homewood Suites hotel in the 4300 block of Spectrum One on San Antonio’s Northwest Side. A DPS trooper staying at the hotel discovered about 4:55 a.m. that his unmarked state vehicle had been burglarized. San Antonio police and another DPS trooper responded to the scene shortly afterward.
According to the affidavit, the responding trooper later noticed a low black Ford pickup near the hotel and followed it after the vehicle made a U-turn and headed toward the Interstate 10 frontage road. The trooper told investigators that a passenger leaned from the pickup, pointed a firearm in his direction and fired. The trooper reported seeing a muzzle flash and hearing a gunshot. Neither the trooper nor his vehicle was hit.
Investigators initially did not have an identified suspect. Surveillance video showed two men in hooded sweatshirts leaving the nearby Broadstone Colonnade Apartments in a black pickup, according to the affidavit, but investigators were unable to identify the vehicle through the available video or license plate reader information. Authorities also have not established whether the burglary of the state vehicle and the shooting were connected or were separate events that occurred in the same area.
The investigation shifted after authorities received an anonymous tip linking Amador to the shooting. Investigators then examined data from the ankle monitor he was required to wear. According to the affidavit, the device placed Amador near the hotel area around the time of the vehicle burglary and later near the Broadstone Colonnade Apartments around the time of the shooting.
The GPS information also showed the monitor traveling along a route that investigators said matched the path described by the trooper after the gunfire. The device eventually traveled to Amador’s home on San Antonio’s far West Side, according to the affidavit. Investigators also reported finding social media images that appeared to show Amador with firearms and large amounts of cash.
Amador told investigators that he and his brother work in landscaping and that a friend lives at the Broadstone Colonnade Apartments. He acknowledged being at the apartment complex on Oct. 30 but denied involvement in the shooting, according to the affidavit. His brother also was detained during the investigation, but court records reviewed by local news organizations did not show him arrested in connection with the shooting.
At the time of the incident, Amador was out on bond in three separate cases and was subject to conditions that included continuous electronic monitoring and a prohibition against possessing firearms, according to court records cited in the affidavit. Those restrictions do not establish that he committed the new offense, and the aggravated assault charge remains an allegation to be resolved through the court process.
Amador was booked in Bexar County in early November on the aggravated assault with a deadly weapon charge. His bond in the new case was set at $250,000. Authorities have not announced an arrest of another person in connection with the shot fired at the trooper, and investigators have not publicly resolved whether the earlier vehicle burglary was connected to the shooting.
Author note: Last updated November 8, 2026.