Sergio Raynaldo Mata, 32, was shot and killed in the early hours of Sunday, August 9, 2026, in the 5000 block of Crossover Road in San Marcos, Texas. Neighbors reported hearing multiple gunshots around 2 a.m. and callers told the Guadalupe County Sheriff’s Office they saw a man lying in a driveway. San Marcos officers found Mata with multiple gunshot wounds; he was pronounced dead at 2:16 a.m.

Deputies detained and arrested 21-year-old Miguel Angel Marquez at the scene. Investigators say several bullets struck Mata and others struck a vehicle and a home across the street; a man asleep inside that home was not injured. The sheriff’s office Criminal Investigations Bureau and a crime scene technician processed the scene and interviewed multiple witnesses. Marquez was booked into the Guadalupe County Adult Detention Center on charges of murder and deadly conduct. The relationship between Mata and Marquez and a motive have not been released while the investigation continues.

Does anyone in the San Marcos area have information about Sergio’s last known whereabouts or about what happened that night?