AP Was There: Shock, then terror as Columbine attack unfoldsOn April 20, 1999, two teenage boys dressed in black trench coats went on a killing rampage at Columbine High School in suburban Denver.
4 accused of plotting school attack on Columbine anniversaryAuthorities say four teenagers have been charged with a plot to attack a Pennsylvania high school in 2024 on the 25th anniversary of the massacre at Coloradoโs Columbine High School.