The man shot and killed by Walnut Creek police early Thursday morning has been identified by the Contra Costa County coroner's office as 22-year-old Anthony Banta Jr.
Coroner's officials would not release any other details, including how many times Banta was shot. An autopsy is scheduled for Friday.
The incident began when Walnut Creek police dispatchers received a 9-1-1 call at 3:13 a.m. Thursday from a woman who lives in the Diablo Pointe apartment complex at 1450 Creekside Drive. Dispatchers could hear screaming in the background, said Capt. Tim Schultz.
Officers responded to the scene and there were reports of shots fired at 3:19 a.m.
The male suspect was killed. No one else was injured.
At a 9:30 a.m. press conference, Schultz said the suspect was armed but wouldn't say what the weapon was.
Schultz said more than one officer fired shots, but he wouldn't say how many officers fired their weapons or how many shots were fired.
Schultz wouldn't release the identity of the suspect or what prompted officers to fire shots except to say they were concerned for their safety.
A press release said police confronted the suspect inside the apartment, but at the press conference Schultz would only say the suspect was "inside the apartment complex."
This is the first officer-involved shooting in Walnut Creek in more than five years. It's also Walnut Creek's first homicide of 2012.
The incident is being investigated by the Contra Costa District Attorney's office and the Contra Costa County Crime Lab.
The officers have been "sequestered" while the investigation continues, said Schultz. The officers have also been placed on administrative leave pending the outcome of the investigation.
At noon, there was still yellow tape around the entire central portion of the Diablo Pointe complex. Police officers stood guard at every entrance.