indiana, to georgia to new york. and you've met so many of them right here, the heroes. and tonight, the country celebrates them. america strong. good evening and it's great to have you with us here on a thursday night. and we begin tonight with yet another school shooting. authorities revealing just moments ago that the shooter this time is a sixth grader. a female student who opened fire, they say, hitting two students and a custodian before they say a teacher was able to step in and get that gun. all of this playing out at a middle school in rigby, idaho. multiple agencies responding. the school put on lockdown. students describing huddling in their classrooms in the dark. the doors locked. e igh school, waiting ands we he seen t tearful reun. students describing the sound of gunshots and screams.