It started as an ordinary spat among high school girls, sparked by an unpaid restaurant bill.
At an ice cream parlor in Rowland Heights, the dispute took a dark turn.
Three girls ganged up on Yiran "Camellia" Liu, forcing her to kneel and use her hands to wipe cigarette butts and ice cream smears off the floor, according to Liu's court testimony.
More teenagers joined the fray. Liu testified that they took her to a nearby park, where they stripped her naked, kicked her with high-heeled shoes, slapped her hundreds of times and burned her nipples with cigarettes.