Shortly before dawn on June 8, 2025, an altercation outside LUNA Live Music Bar on San Antonio’s North Side escalated into gunfire in the parking lot at 6740 San Pedro Avenue. Police were called around 5:30 a.m. and found two men with gunshot wounds; both died, and the Bexar County Medical Examiner ruled both deaths homicides caused by gunfire. One victim is identified as Guillermo Javier Serrano Jr. 45, listed elsewhere as Guillermo Serrano Jr. Guillermo was one of two men killed, the other being 31-year-old Carlos Claros.

The Texas Alcoholic Beverage Commission opened an administrative inquiry because the violence began at a licensed bar. San Antonio police have named a suspect, 28-year-old Samuel Adrian Barron, wanted on a capital murder charge for the multiple killings. Authorities released surveillance images and said they believe the suspect fled to Mexico on the day of the shooting; no arrest has been announced.

If anyone has information about the events outside LUNA Live Music Bar on June 8 or the suspect’s whereabouts, please contact the SAPD Homicide Office.