Early reports continue to be contradictory and confusing. I am sure that details will come out in the next few days.
President Obama has already hinted that he intends to use this to push the his gun control agenda.
I urge calm for everyone. The only policy shown to reduce these public shootings is shall issue concealed carry. Schools are defenseless victim zones.
Actually, that is not quite true. It is the only American policy that has shown positive effects.
The best policy internationaly has been the Israeli policy, where they were faced with terrorists killing schoolchildren and holding children hostage in schools. They instituted a policy of arming teachers and responsible older students. It worked very well.