Shoppers in a California mall got more than they bargained for on Black Friday when a gunman opened fire, injuring three people.

Dramatic footage of the shooting’s aftermath surfaced online, showing people running for their lives from the Westfield Valley Fair Mall in San Jose. The shooting occurred one day after Thanksgiving, when the stores are packed with Black Friday bargain hunters.

Some witnesses posted online accounts saying they took shelter inside stores when police issued lockdown orders … ducking behind mannequins or hiding underneath clothes for protection. When the coast was clear, they dashed out of the stores to safety outside the mall.