Overview
- Officers converged on the Westfield Santa Anita Mall in Arcadia after witnesses reported a man carrying a rifle and threatening to shoot people.
- Heavily armed police were seen clearing sections of the mall as units established a perimeter around the property.
- An armored police vehicle was positioned outside the JC Penney store, according to on-scene accounts.
- Firefighters were dispatched at 5:42 p.m. and remained at the location during the police operation.
- Authorities have not confirmed that any shots were fired or that a suspect has been located, and Arcadia police had not issued an official statement.