From what I'm hearing it was a terrorist activity but as of yet I have not heard of any information coming out about it, watch Fox news or CNN that will probably be the first place that you'll get the information from... A very sad event for the country :(
I thought things like this only happen in other countries! Imagine my surprise! Can't figure why people love to hurt other people. Surviving should be number one!! Not really religious but seems all holy books from everywhere says honor their brothers. Shall not kill.. Must be a newer copy out that I haven't read! I think the 1980's was the best!!