NEW : `` No deal 's worth that , '' at least seven witness shopper says of pepper spraying . L.A. police seek woman suspect in Porter Ranch incident . Psychologist says Black 32 to 38 years of age tactics make shoppers frenzied . Los Angeles firefighters treated them at the scene and no one required hospitalization , Chavira said . Incidents mar Black Friday shopping in one states .
NEW : `` No deal 's worth that , '' at least seven witness shopper says of pepper spraying . L.A. police seek woman suspect in Porter Ranch incident . Psychologist says Black 32 to 38 years of age tactics make shoppers frenzied . Incidents mar Black Friday shopping in one states .