CNN Anderson Cooper 360 August 21, 2013 02:30:00
Open up a business, he could too. >> after the gunman surrendered, these pictures aired live. police were worried that a vehicle outside might contain explosives. >> we had to move the kids from the rear of the school and find an escape route, which we had to cut a hole in a fence, take the kids through the back of a house, down a small embankment to an adjoining street, get the kids on the school bus. >> david mattingly joins me now. david, what have you learned ant this gunman and why he may have done this? >> reporter: he's been identified as michael bradden. police say he's 20 years of age...