Sebastian Villasenor, 18, allegedly had "over a thousand rounds" of ammunition and 11 weapons, including seven rifles and one ...

The worst school massacre in US history was not at Columbine or Newtown or Parkland, as horrifying as those episodes were.

The attack remains one of the deadliest school shootings in U.S. history, and while Columbine led to a reckoning over gun culture in America, it also birthed a darker element, one that exists to ...

“Since Columbine, there have been hundreds of school shootings, exposing hundreds of thousands of students to the horrors of gun violence. As the president has said, this is not normal, and it ...

Hours after she escaped the Columbine High School shooting ... Researchers who’ve studied the long-term effects of gun ...

April 29 - Authorities have found the man who sold an illegal handgun to the teenagers who killed 12 of their classmates and a teacher last week at Columbine High School. Sources told The Denver Post ...

All four of these guns had been sold from Colorado gun-show tables in 1998 by private sellers who took no names, required no signature, called nobody for a background check. Robyn Anderson, an 18-year ...

and moments of silence to demand action on gun legislation and mark the 19th anniversary of the massacre at Columbine High… How this Columbine survivor is helping scared students When Lindsey O ...

In January 2001, 59% of the respondents in an ABC News/Washington Post survey said they favoured stricter gun control laws. After the horrific events in 1999 at Columbine High School in Colorado ...