Amidst the wave of gun-related violence in the United States, there's one terrible tragedy in particular that stands out. It's hard to believe that it's been 18 years since the events at Columbine High School shocked and saddened the nation, but its awful legacy seems to live on to this day. But do you remember the hero who stood stall amidst the carnage?
His name was William Sanders, affectionately known as Dave to his friends, colleagues and students. This photo records the heights of human bravery and his valiant efforts, as the teacher warned hundreds of students of the shocking events that were happening all around them. Although he was shot twice in the midst of the senseless rampage, his actions saved countless lives and forever earned him a place in our hearts.