A man was knocked out by an angry crowd after allegedly slashing a person at a music gig in Orange County Wednesday.
The fighting occurred during a heavy metal battle of the bands at the La Habra 300 Bowl at 11:30p.m, La Habra Police Department said.
A male suspect, named by police as 30-year-old Adam Merrill, allegedly got upset after getting pushed around by fellow revelers in a mosh pit, then took out a knife and cut another person on the side of the neck.
Other attendees at the event, which was attended by around 150 people, then ganged up on him and knocked him unconscious.
The stabbing victim was taken to hospital for treatment to non-life threatening injuries.
Merrill was also hospitalized, and when he recovers will be charged with assault of a deadly weapon., police said.