Columbine school shooting victims remembered at 25th anniversary vigil CBS NewsColumbine victims honored with day of service 9News.com KUSAColumbine victim’s sneakers forge a path for his father 25 years later FOX 31 DenverNearly 500 People Have Been Killed in School Shootings Since Columbine NewsweekThe legacy of the Columbine shooting 25 years later Yahoo!