Threat at Columbine near anniversary of shooting

Authorities were looking for an 18-year-old woman suspected of making threats against Columbine High School, just days before the 20th anniversary of a mass shooting. The information prompted a lockdown. (April 16) Subscribe for more Breaking News: http://smarturl.it/AssociatedPress Website: https://apnews.com Twitter:   / ap   Facebook:   / apnews   Google+: https://plus.google.com/1158922418018... Instagram:   / apnews   ​ You can license this story through AP Archive: http://www.aparchive.com/metadata/you...