People Against Violence Enterprises was established after the Columbine High School massacre in Colorado in 1999.

And much of it can be traced back to the two killers at Columbine, previously ordinary high school students who have achieved dark folk hero status — their followers often known as ...

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 ...

Twenty-five years have passed since the Columbine High School shooting that took 13 lives, and still, victims’ families and many in Colorado, the US and world struggle to grapple with the tragedy.

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 ...

May 29 - Jeff Mack's toughest job begins Tuesday. That's when Turner Construction begins to replace the Columbine High School library with a two-story atrium and prepares to build a new library onto ...

April 20 marked the 25th anniversary of the Columbine High School shooting in Colorado, where a pair of gunmen killed 12 students and a teacher before taking their own lives. The attack remains ...

In the wake of the Virginia Tech shooting and the eighth anniversary of the Columbine High School shootings, Litchfield schools were not immune from rumors. Rumors about possible school violence ...

Nearly 20 years separate the horrible tragedies at Columbine High School in Colorado and Stoneman Douglas High School in Parkland, Florida. In that time, too little has been done to make our ...

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 ...

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.