that crowd. so, thanks to her we were still alive. >> the walton boys were holed up in the back room when eventually police were able to break down a door and get people out. the security camera shows the chaos and the crowd after being released. look closely, there's blaise in his redshirt and ian with his backpack, free after three and a half hours of being trapped. relief washed over phillip walton when he saw his boys in the image his friend sent him. at least his sons were okay. >> i remember thinking at that time, at least i won't be alone. i remember thinking, however this a day is at least the boys and i will have each other if it turns out worse than we would hope or imagine. >> his wife, katherine, was still trapped under that tiny