Coroner's office in Los Angeles identified a girl who was shot dead by police on Thursday morning while trying on clothes with her mother at a North Hollywood clothing store.
The girl, Valentina Orellana-Peralta, 14, was found dead behind the wall of the living room at a Burlington store. A rifle was fired into the wall after police opened fire on the suspect, police said. He was found while police were searching for more suspects and victims inside the store.
It was not immediately clear if he was in the dressing room before police responded or hid inside when a riot broke out, Los Angeles police said.
The dressing room where Orellana-Peralta was found appeared to have been unseen by police.
An unidentified suspect was also killed.
At least 2 people were killed and one was injured in a shooting at a Burlington store
A third person, described by police as the victim of an earlier call to the police, was admitted to hospital with unspecified wounds, authorities said.
"I am very sorry for the loss of this little girl and I know that no words can soothe the unimaginable pain of the family," Los Angeles police chief Michel R. Moore said in a written statement.
Moore promised a thorough investigation into the incident and ordered the release of a video of the critical incident, including 911 calls, radio transmissions, a camera and other recordings on Monday.
The investigation is ongoing.
California Attorney General Rob Bonta said a team of state investigators had also been dispatched to the scene. California's new law requires the country's Department of Justice to investigate the shooting of unarmed civilians by law enforcement officials.
Critics of the Los Angeles Police Department want more reforms following the death of Orellana-Peralta. In a series of tweets, Los Angeles Councilor Nithya Raman, who ran last year on the evolving legal stage, praised the involvement of the attorney general and said he hoped "that we will respond to this tragic crisis with accountability and change."
"Three years ago, in my district, Mely Corado was killed during a police shooting at a store. Her family will never end the tragedy. And not everyone who loved Valentina Orellana-Peralta," Raman said on Twitter. "What changes will this city make to ensure that this does not happen again?"
Luz Rivas of California, a Democrat representing the region where Thursday's incident took place and co-authored a new California law, said he was "frustrated" with the shooting and would "personally monitor the results of the investigation."
"I will continue to support efforts that will lead to transparency and accountability for what appears to be the police involvement in the shooting," he said in a statement. "Let me be clear, one life lost is too much."