let's review what happened without the initial emotions
and ask "what happened"
here's a good starting point
Sandy Hook massacre: Official story spins out of control
Sandy Hook massacre: Evidence of official foreknowledge?
“Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience.” -C.S. Lewis