Twenty-five years ago today, two students walked into Columbine High School with assault weapons and other firearms they obtained without background checks. They killed twelve of their fellow students and one teacher, injuring nearly two dozen others, and transforming classrooms into crime scenes. Jill and I continue to pray for the survivors and families impacted by this traumatic event, as well as a community that was forever changed. We know that pain never goes away.? Since Columbine, ove...