An Arizona woman who did not want to be identified is recovering after a brutal beating over the weekend at a sold-out concert in Pasadena’s Rose Bowl Stadium that was captured on video and has since gone viral.

The Pasadena Police Department is searching for the man who allegedly knocked a woman unconscious at a Rose Bowl concert this weekend. The alleged assault happened during the Rüfüs Du Sol concert Saturday night after a dispute over a spilled drink.

A woman was violently attacked at a Rüfüs Du Sol concert at the Rose Bowl after an incident with a spilled drink. The assailant fled, and the police are investigating as event security is criticized.