Odyssey Sellers Carrillo, 18, has been charged with murder in the death of Nina Silver, 20, who was with a group standing at a party outside at 12:30 a.m. off Cuvier Street near Pearl Street in La Jolla.
Carrillo pleaded not guilty to murder and three counts of assault with a deadly weapon in the same shooting spree in which a gunman fired shots into the crowd.
No bail has been set for him and he remains in the central jail.
The prosecutor has not said whether Carrillo was the gunman or the driver, but no one else has been charged. Carrillo was arrested July 17 by San Diego Police.
San Diego Superior Court Judge Michael Smyth ordered Carrillo to next appear in court on Aug. 7 for a status hearing of the case.
Court documents say Carrillo was convicted as a juvenile of robbery at gunpoint and he was barred from possessing a firearm. He was 15 years old at the time in an incident on Oct. 19, 2016, involving the hold-up.
Juvenile records are normally not public record, but Carrillo is charged in this case with being a person who was banned from possessing a 9 mm semi-automatic handgun when the incident in La Jolla occurred.
He is also charged with evading officers with reckless driving on July 17 before his arrest.