Students, parents, teachers and community members volunteered at several different locations for the Columbine Day of Service.

"It's like my body keeps score," the mom of five tells TODAY.com about her reaction to the anniversary of the mass shooting at Columbine High School on April 20, 1999. One teacher and 12 students were ...

Harris and Klebold ultimately killed 13 people at Columbine - 12 students and a teacher - all the deaths from gunshot wounds. The two killers both committed suicide, leaving some of their explosives ...

Add Yahoo as a preferred source to see more of our stories on Google. Why does Columbine still loom large? The easy answer would be that it was such a terrible crime that people found it hard to ...

Add Yahoo as a preferred source to see more of our stories on Google. The epicenter of the Columbine High School mass shooting was the library, where Craig Scott was studying for a biology test on ...

May 15 deadline for Columbine report. By Howard Pankratz Denver Post Legal Affairs Writer. April 25 - The world may finally see the longawaited Columbine investigative report on M ...

Columbine Health Systems Inc., which has provided senior care services in Northern Colorado for more than five decades, has sold eight independent-living and assisted-living communities to a ...

WASHINGTON, D.C. (CBS4) - As tens of thousands gathered in the nation's capital for the March for Our Lives, survivors from the 1999 Columbine High School massacre were in the crowd advocating for ...

The gunman who opened fire on tourists at Mexico’s iconic Teotihuacan pyramids carried materials that were apparently related to the deadly 1999 shooting at Columbine High School.

Columbine Health Systems has sold the last of its senior living communities in Fort Collins, Loveland and Windsor.