On November 11th 2004, 14-year-old Conrad Cliff jackhammered into the water main at The Royal Galleria near Belmont, California. Twenty-three people drowned. Three people were electrocuted in the arcade. Two people were fatally bitten by a hammerhead shark that escaped from the mall's aquarium. And the teenager responsible was never found. No body. No trace. Blair Van Auken was with Conrad at the mall that day but refused to speak about the incident for 18 years. Until now. This is a 6 part series on madness, machines, and melancholy in the MallScape of America. This is MallWalk.