The gunman, Peter Selis, 49, shot all seven at a pool area at the La Jolla Crossroads apartments around 6 p.m. before police officers fatally shot him, Zimmerman said. Some of the injured were in critical condition late Sunday night, she said.
The upscale complex is located near the University of California San Diego campus.
Another person was injured in the incident broke his arm while fleeing the gunfire, police said. Zimmerman initially said that eight people had been shot.
The shooting victims were identified only as four black women, two black men and a Hispanic man. Their names were not immediately released.
It’s not clear whether Selis, who was a white man, knew any of the victims, police said. Detectives have not determined the motive for the shooting.
Some of the people at the pool were celebrating a birthday, police said. It’s not clear exactly how many people were in the pool area at the time of the shooting.
Police said they believe Selis and at least one of the party-goers lived at the apartment complex.
“This was a truly horrific and disturbing act. We pray for the victims and thank our first responders. Our city rejects this senseless violence,” San Diego Mayor Kevin Faulconer said at a news conference.
‘People are shocked’
As police responded to 911 calls, officers flying above the complex in a helicopter could see the suspect in the pool area, and he appeared to be reloading a large-caliber handgun, authorities said.
Three officers on the ground confronted the shooter, who pointed his weapon at them and prompted an exchange of gunfire, police said.
In a span of about 30 minutes, apartment residents heard rounds of gunfire, sirens and screams of those near the main pool, said resident Susan Berry, who was at the property but did not witness the shooting.
Video from the scene showed ambulances, yellow police tape and a heavy police presence. Berry said these things aren’t a common sight at the complex, which college students, physicians and military families, among others, call home.
“People are shocked because it’s an affluent neighborhood,” Berry said.