20 years after Columbine, what's changed and what hasn't for
Columbine Shooting Tattoo. Web charles schaefer/afp via getty images the columbine shooting on april 20, 1999 at columbine high school in.
Web charles schaefer/afp via getty images the columbine shooting on april 20, 1999 at columbine high school in.
Web charles schaefer/afp via getty images the columbine shooting on april 20, 1999 at columbine high school in. Web charles schaefer/afp via getty images the columbine shooting on april 20, 1999 at columbine high school in.
