Another School Shooting - At an Elementary School

[DP]

Of course, we're now finding out about the shooters past and there is no way he should have been in possession of firearms. He had also had PPO's against him from other women in his past and his latest left him after a month.
So that usual question comes up: How was it that people knew he was a dangerous nut case yet nothing was done? The signs were all there and very obvious...