A 32-year-old man was shot multiple times and killed in a driveway on the 5000 block of Crossover Road near San Marcos early Sunday, and investigators say some of the gunfire tore through a neighboring home and vehicle, narrowly missing a man asleep in his bedroom. Sergio Raynaldo Mata was pronounced dead at the scene at 2:16 a.m., and a 21-year-old man has since been arrested and charged with murder and deadly conduct in connection with the shooting.
According to WOAI, Guadalupe County Sheriff's deputies were dispatched to the area around 1:58 a.m. Sunday after a shots-fired call, with additional calls coming in reporting that several shots had been fired and a man was lying in a front driveway. San Marcos Police Department officers, who happened to be nearby, arrived before Guadalupe County deputies and found Mata in the driveway, where they performed life-saving measures before he was pronounced dead. Deputies later identified 21-year-old Miguel Angel Marquez as the person who fired at Mata, and he was detained at the scene before being taken into custody by Guadalupe County Sheriff's Office investigators.
Crime scene investigators with the sheriff's office spent several hours interviewing witnesses and gathering physical evidence, ultimately confirming that bullets fired by Marquez penetrated an occupied home across the street, according to KENS 5. An adult man who was sleeping in the bedroom where the stray rounds entered was not injured, though the station's report notes the rounds also struck a vehicle at the property. It remains unclear what relationship, if any, existed between Marquez and Mata, or what sparked the confrontation that ended in gunfire.
Why San Marcos Police Got There First
The overlapping response from two different agencies traces back to an unusual jurisdictional quirk along the county line. While San Marcos is predominantly located in Hays County, portions of its southeastern jurisdiction and extra-territorial areas extend directly into Guadalupe County, according to Community Impact, which results in shared response duties between municipal police and the county sheriff. That boundary overlap explains why San Marcos officers, patrolling nearby, beat Guadalupe County deputies to the scene even though the sheriff's office ultimately held primary investigative authority and made the arrest.
The rural stretch of Crossover Road sits within one of the fastest-growing corners of Central Texas. Guadalupe County's population grew by 15.76 percent between 2020 and 2025, reaching an estimated 201,111 residents amid rapid suburban development between San Antonio and Austin, per the same Community Impact report. Archived county records show the road has drawn law enforcement attention before, including a reported firearm theft in February 2000 and a 1999 roadside vehicle stop, according to the Seguin Gazette Enterprise archive.
Charges and Potential Sentence
Marquez was booked into the Guadalupe County Adult Detention Center in Seguin, roughly 20 miles south of San Marcos, where he remains in custody, KENS 5 reported. He faces a murder charge under Texas Penal Code § 19.02, a first-degree felony punishable by 5 to 99 years or life in prison and an optional fine of up to $10,000, according to the L&L Law Group. He also faces a deadly conduct charge tied to the rounds that struck the neighboring home, which under Texas Penal Code § 22.05 is elevated to a felony carrying 2 to 10 years in state prison whenever a firearm is actually discharged toward a person, occupied habitation, or vehicle, per Saputo Toufexis.
A Pattern of Early-Morning Violence in San Marcos
The shooting adds to a string of violent, early-morning cases that have drawn multi-agency investigations in the San Marcos area in recent months. Hoodline previously reported that San Marcos police arrested a teen on capital murder charges in July 2025 following a shooting that left two men dead, and that a Hays County jury sentenced a 73-year-old San Marcos man to 25 years in prison in March for shooting a victim inside a residence. Local district attorneys across Hays and Guadalupe counties have continued to aggressively prosecute felony firearm violence cases, and Marquez's initial magistrate hearing at the Seguin detention facility is expected to be the next step in a case that still leaves open questions about what led to the deadly confrontation on Crossover Road.
