Columbine Principal Hopes Sharing His Story Will Help Others Heal

When two gunmen opened fire at Columbine High School 20 years ago, Principal Frank DeAngelis didn't hesitate. "I saw the gunman but I also saw my kids," he told Inside Edition. "People ask me, 'Frank, why did you run towards the gunman?' and I say, 'Because I had to save my kids.'" DeAngelis hopes sharing his story will inspire others in need of healing. He has written a book, "They Call Me 'Mr. De': The Story of Columbine's Heart, Resilience and Recovery." All proceeds go to charity.