Columbine anniversary walkout for gun control

For the second time in about a month, hundreds of Minnesota students will walk out of their classrooms on Friday to push for stricter gun control measures - marking the 19th anniversary of the deadly Columbine High School shooting. Gallery: Cate Barnes, second from right, a junior at Avalon Charter School in St. Paul, chants with a sign that reads "I don't want to die" during the rally.