A look at the aftermath of the Sandy Hook massacre where 20 children were murdered at their school by a resentful, gun-obsessed shooter, but led to no changes in American federal gun laws.A look at the aftermath of the Sandy Hook massacre where 20 children were murdered at their school by a resentful, gun-obsessed shooter, but led to no changes in American federal gun laws.A look at the aftermath of the Sandy Hook massacre where 20 children were murdered at their school by a resentful, gun-obsessed shooter, but led to no changes in American federal gun laws.