Thursday night was shot at the crowded party in Orinda advertised on social media. When the officers arrived, they found a home party of more than 100 people, the Sheriff Bureau of Contra Costa County said in a statement.
Incoming officers found a highly chaotic scene in which gunmen, injured partygoers and numerous people fled the scene. Partygoers apparently came from across the Bay Area for the Halloween event A house found on a short-term rental site, "it said.
Two firearms were found in the house and a crime lab examined them to see if They were used in shootings or other crimes.
The victims were Oshiana Tompkins, 1
It was unclear how many victims were injured as some were taken to the hospital by ambulance while others drove themselves, the sheriff's office said.
The shootings took place in Airbnb said it was appalled by the tragedy and cooperate in the investigation.
Before the shootings, the Orinda police were in at 21:19 s house called. and about an hour later with respect to a noise complaint.
"At 22:48, an official was sent home to investigate the phone calls," the sheriff's office said. "The first shooting reports came around 22:50."
Orinda is a suburb east of Berkeley in the Bay Area.