@CNN: Columbine High School, site of a 1999 massacre by two students, was shut down after receiving bomb threats, the Jefferson County Sheriff’s Office said. Authorities conducted a search, found no suspects, and decided the threat was baseless. https://t.co/UiuRkXyLUG https://t.co/Lc24hZjWCS

Columbine High School, site of a 1999 massacre by two students, was shut down after receiving bomb threats, the Jefferson County Sheriff's Office said. Authorities conducted a search, found no suspects, and decided the threat was baseless. https://t.co/UiuRkXyLUG pic.twitter.com/Lc24hZjWCS

— CNN (@CNN) December 14, 2018