While it is early, this does smack of domestic terrorism. It was Patriot Day, also Tax Day. That coupled with the fact the Authorities seem to be scratching their heads on this makes me think so. There was no "chatter" to indicate a possible Al-Quiada type threat.
Who ever it is, I sincerely hope they catch him and make a public example of him. This is one of those cases where I think the Arab countries have it right - an "eye for an eye". But of course we won't. We will either have a "humane" execution ("make sure that needle is sharp - you don't want him/her to feel any pain") or a lengthy stay in jail, if they even catch him
We should string him up and surround him with improvised explosive devices in pressure cookers, filled with ball bearings and nails, and then slowly detonate them so they remove small parts of his body at once - feet first, then lower leg and so on
And please don't give me that "no more violence" speech. The praying sure seems to be helping stop these assholes (sarcasm intended)
That's all I have to say. I am still too shocked at the senselessness of this act to be rational or calm