One Year Ago: Uvalde

One year ago today, an 18-year-old who had never fired a gun before in his life went to his old elementary school, Robb Elementary in Uvalde, Texas, with an AR-15. He killed 19 children and two teachers. He wounded 17 others. Law enforcement waited well over an hour before bursting into the classroom where the shooter had holed up. A year later, the families of the victims are pressing for changes to gun laws and some are suing gunmakers and others. CBS News sat down with one of the survivors.