It has been nearly 20 years since the first mass school shooting in the U.S. -- the shocking tragedy at Columbine High School in Littleton, Colorado, on April 20, 1999. As a “credible” threat ...

Hours after she escaped the Columbine High School shooting ... hundreds of thousands of people have been exposed to school ...

The tracker focuses on the segment of planned school shootings where an active shooter, with intent to harm, injures or kills at least one student or faculty member during school or at a school event.

a boy with learning disabilities who was just learning to like who he was and a teen who would spend every free minute fishing were among the 13 victims of the Columbine High School shooting ...

The Associated Press DENVER — The 12 students and one teacher killed in the Columbine High School shooting will ... after she was nearly killed in a mass shooting, will be among those speaking ...

April 20 marked the 25th anniversary of the Columbine High School shooting in Colorado ... have also emerged surrounding other school shootings and mass casualty events. But how prevalent are ...

Children in schools today were born almost a decade after the 1999 Columbine High School shooting, and many of the survivors of the 2012 Sandy Hook Elementary School mass shooting are among the ...

Police say that a 17-year-old student in the southern city of Nashville opened fire in a high school cafeteria.