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 ...

May 13 - An FBI agent investigating the Columbine High School shooting whose son helped produce a video parody in which the school is destroyed says the film is a comedy and not a depiction of ...

A rose stands at the plaque for Corey DePooter, one of the 12 student victims in the massacre at Columbine High School, at the Columbine Memorial on Wednesday in Littleton, Colo. The Associated ...

According to CBS News, the parent mentioned the 1999 mass shooting at Columbine High School, one of the most notorious such attacks in the US, which left 13 dead just 8km (5 miles) from Tuesday's ...

The recent Abundant Life Christian School shooting in Madison, Wisconsin, has sparked unsettling comparisons to the Columbine High School massacre after a chilling detail emerged: the 15-year-old ...

Sol Pais was reportedly obsessed with the 1999 Columbine high school massacre, in which two teenagers murdered 12 students and a teacher. The alleged threat led to school closures, affecting more ...

July 25 - As the mother of one of only 16 African-American students at Columbine High School, Tammy Theus waited in terror for six hours after hearing that a black ...