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. It was one of the concerns concertgoers raised about the "chaotic" night at the stadium.

Spectators say the Rüfüs Du Sol show Saturday night was marred by overcrowding and lax security. “We immediately felt unsafe,” said one attendee.

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.