All is quiet. Investigators know some stuff. Let's give them time to follow all their leads. Silence is good at this point because it seems to me that given the clamor from everyone about "Why?", the noise has died down. So far there is no answer as to why compared to all previous terrorist incidents that found an answer, this was is sorely lacking in all aspects. The fact that, given all the guns and ammo involved, and the media isn't going full blast against the 2nd amendment is telling. Something is out there and is known. It's time to let the investigators do their job, and do it right.