"Columbine affected those of us who do this for a living ... a researcher at Yale Law School who has used statistical studies to suggest that concealed weapons lower crime rates and that more women ...

And his online nickname was "Rebdoomer" - an apparent reference to Columbine's Rebel mascot ... "Duke Nukem," a more recent generation of the Doom-style games. Included as weapons in that game were ...

In the wake of the tragic shootings at Columbine High School, some schools across the country turned themselves into near-fortresses. They installed metal detectors and security cameras, banned ...

A Pennsylvania man remained jailed on Sunday after being accused by authorities of planning a mass school shooting for later this month that would have coincided ...

The Columbine shooting resulted in the deaths ... and we must ban assault weapons and high-capacity magazines. We need Congress to do something — do something — so that communities won ...

Sue Townsend, the stepmother of Columbine victim Lauren Townsend ... killing 13 people and injuring 23 before turning their ...