Commentary: After Sandy Hook, we’ll never be silent on guns again
Editor's note: Shannon Watts is the founder of Moms Demand Action for Gun Sense in America, a part of Everytown for Gun Safety. The opinions expressed in this commentary are hers. (CNN) -- Three years ago today, I was sitting at my kitchen counter, devastated and outraged by the tragedy that had played out on my television the day before: 20 first-graders and six educators were gunned down by a heavily armed gunman in the sanctity of an American elementary school -- Sandy Hook Elementary School in Newtown, Connecticut.