Two people have been arrested in connection with a outside the on East Stanley Boulevard, police said.
Ramon Corona Perez, 19, and a 17-year-old boy each face a charge of assault with a deadly weapon, Lt. Ava Garavatti said.
Perez and the teen, both from Livermore, fired shots at an unknown person, police said. It is unknown if that individual was injured in the shooting.
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There was an argument between two men in the parking lot near the front of the store before the shots were fired, witnesses told police.
Officers were notified of the shooting at 11:20 p.m. They arrived on scene and contacted a group of about 25 people.
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Surveillance footage revealed two subjects, later identified as Perez and the teenager, associated with a red Mazda B4000 pickup shooting at an unidentified person. Several bystanders ran and sought cover.
No bystanders were hurt in the shooting, police said.
During an investigation, detectives discovered that Perez was the driver of the red truck and was captured on surveillance footage shooting at the victim. The teenage boy also is seen on surveillance shooting at the victim, police said.
Perez and the juvenile were seen leaving the area in the truck.
Three handguns have been recovered as the result of two search warrants, police said.
One handgun matched the caliber of the weapon used in the shooting and was reported stolen during an unrelated residential burglary, police said.
Perez is in custody at Santa Rita Jail in Dublin and the juvenile is being held at Juvenile Hall in San Leandro.
Police are unsure if the shooting was gang related.
The is requesting assistance in locating witnesses at the scene, as well as identifying the individual being shot at. Anyone with information is asked to call police at 925-371-4987.
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