HIDDEN VALLEY, Calif. — Deputies are investigating three separate assaults at a party that drew an estimated 3,000 or more people to the 1300 block of West Potrero Road on November 7, 2026, with two 17-year-old suspects booked at the Ventura County Juvenile Justice Center, the Ventura County Sheriff's Office reported.
Read the Sheriff's Office release: https://nixle.us/HT77K
The Sheriff's Office listed the case as Report No. RB# 26-146404. The release was prepared by Sergeant Sean Taylor and approved by Captain Albert Ramirez.
The investigations are being handled by East County Patrol Services, the East County Investigations Bureau Major Crimes Unit and the Special Enforcement Unit, the Sheriff's Office said.
The Gathering, The Knife Report, The First Booking
The gathering took place on November 7, 2026, in the unincorporated community of Hidden Valley, according to the Sheriff's Office. The event coordinator and homeowner had arranged for numerous private security personnel and emergency medical technicians to be present.
During the event, multiple physical altercations occurred, the Sheriff's Office said. Sheriff's Communications received a report that a male juvenile suspect had allegedly slashed another male juvenile with a knife.
Deputies and investigators were told a juvenile victim suffered a superficial laceration to his neck believed to be from a knife. The victim received medical treatment from EMTs at the scene and left before deputies arrived.
Based on the information at the time, the suspect was booked at the Ventura County Juvenile Justice Center for assault with a deadly weapon, the Sheriff's Office said.
On November 9, 2026, detectives contacted the victim and determined he was not assaulted with a knife, the Sheriff's Office said. Investigators determined the injury appears to be from mutual combat / simple battery.
The Head Kick, The Mosh Pit, The Returned Phone
While deputies were at the original call for service, they witnessed a separate assault in which a male juvenile kicked another individual in the head, the Sheriff's Office said.
Deputies took that suspect into custody, and he was booked at the Ventura County Juvenile Justice Center for assault. The victim in the second incident received medical treatment at the scene.
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A third incident that night involved an aggravated assault near the concert stage, where a victim participating in a mosh pit was knocked to the ground, the Sheriff's Office said. While on the ground, the victim alleged he was repeatedly punched and kicked in various parts of his body, causing him to lose consciousness.
Upon regaining consciousness, the victim left the party. He reported the incident on November 8, 2026, and said his cellular phone and money were stolen.
Detectives later discovered the victim's phone was recovered that night and turned in as lost and found at the party, the Sheriff's Office said. Deputies observed visible injuries consistent with the victim's account and returned the phone to him.
The Sheriff's Office listed the suspects as two juvenile males, both 17, from Simi Valley and Ventura. The victims were listed as juvenile males ages 15 and 16 from Newbury Park and a 20-year-old male adult from Thousand Oaks.
The Video Request, The Ongoing Investigations, What Happens Next
All three investigations remain ongoing, the Sheriff's Office said.
The East County Investigations Bureau is seeking assistance from anyone who may have captured video footage of the assaults on a cellular phone or other recording device. Anyone with relevant video is encouraged to upload it to the Sheriff's Office secure server at https://venturasheriffca.evidence.com/axon/community-request/public/26-146404
The Sheriff's Office said it remains committed to protecting the safety and security of its communities and will continue to thoroughly investigate criminal activity and take appropriate enforcement action.
Ventura County Crime Stoppers will pay up to a $1,000 reward for information leading to the arrest and criminal complaint against the person or persons responsible for a crime. Callers may remain anonymous and the call is not recorded. Call Crime Stoppers at 800-222-TIPS (8477).
The arrests described in the release are allegations. The cases remain under investigation.
Sources
Ventura County Sheriff's Office, "Sheriff's Office Investigates Multiple Assaults at a Large Party," November 2026 (incident November 7, 2026; detective follow-up November 9, 2026): https://nixle.us/HT77K