Newtown massacre: A timeline of events

'I played dead': Kid who survived Texas school shooting recalls gunman saying 'you're all gonna die'

See the videos students took during the Florida school shooting

8th Graders Charged With Planning Mass School Shooting

Back-To-School Essentials | Sandy Hook Promise

Official investigation: Sandy Hook shooter's motives unknown

Tragedy at Sandy Hook Elementary School: What Happened During Newtown, Connecticut Shooting?

Global National - Timeline of Sandy Hook school shooting

Oxford High School students hide in classroom during deadly shooting | USA TODAY

Ethan Crumbley's Mom Confronted Him After School Shooting

Florida shooting: Why are school shootings happening more frequently?

Mass Shooting at Sandy Hook Elementary School | Flashback | NBC News

The Horror Behind the Georgia School Shooting

A Grim Education: 72 Years of School Shootings

Parkland shooter Nicholas Cruz appears with gun in hall

$3.8 Million Verdict Awarded In Damages For 2013 Kern County School Shooting Case

Newtown, Connecticut Shooting: 27 Killed, Gunman Dead at Sandy Hook Elementary Tragedy - ABC News

How the tragedy unfolded

New video of Bronx teen shot

The moment that changed Joe Burrow 😮 | #shorts