A federal judge in San Antonio on Wednesday sentenced Austyn Hartnett to 40 years in prison for his role in the killings of Jeremy Sanchez and Aaron Espinosa, according to court filings and prosecutors. Authorities say the case grew out of a July 2023 meeting that investigators believe was a drug deal gone bad, a violent encounter that eventually led officers from a blood-soaked rental car to a shallow grave on the city’s south side.
As reported by WOAI, the investigation kicked into high gear after family members reported Sanchez and Espinosa missing and officers later found a rental vehicle tied to the men riddled with bullet holes and containing large amounts of blood. Detectives then used tracking data from that rental car to locate a shallow grave on the city’s south side where both men were recovered, authorities said. The discovery set off months of work that produced four arrests and ended, for Hartnett at least, with Wednesday’s lengthy sentence.
How investigators tracked the case
According to GPS data and rap lyrics, investigators pulled together surveillance video, phone records and location data from the rental vehicle to create a tight timeline linking suspects to the disappearance. Local reporting notes that prosecutors also leaned on messages and self-written song lyrics that they say backed up both movements and intent. Those pieces helped support charges against Esteban Flores, Bradlee Grindee, Michael Trevino and Austyn Hartnett.
District Attorney Joe Gonzales told WOAI that “violence of this magnitude cannot go unanswered,” and he praised the investigators and prosecutors who pushed the case forward. Assistant Criminal District Attorney Melissa Rust led the prosecution, with support from victim advocate Laura Covarrubias and Investigator Jim Cheatham, prosecutors said. WOAI reports that Hartnett will serve his sentence in the custody of the Texas Department of Criminal Justice.
What’s next
Hartnett’s punishment resolves his case at sentencing, but proceedings for the other defendants are still pending and could move forward in either state or federal court, according to local reporting. The case has underscored how digital tools and traditional detective work increasingly share the spotlight in complex homicide investigations, and advocates say the sentence offers at least some measure of accountability for the families of Sanchez and Espinosa. Coverage shows the probe began in July 2023 and widened as officers followed vehicle data, phone records and other leads.
Prosecutors and victim advocates credited multiagency cooperation with pulling the case together, and court filings cited alongside local reporting outline the step-by-step trail from the initial missing-person reports to the recovery of the victims and, ultimately, Hartnett’s 40-year sentence.
