when you were looki ining at th details here. but they haven't concluded if it was workplace violence or terrorism. poppy harlow, thank you so much. next, the president calling for gun reform, again, in the aftermath of this shooting. republicans are saying that's not the answer. a closer look at the rhetoric that has been flying today and the controversy raging on social media. >> i don't believe we can stop every incident of gun violence, but we sure can stop a lot of them. and we need to take action now. today people are coming out to the nation's capital to support an important cause that can change the way you live for years to come. how can you help? by giving a little more, to yourself. i am running for my future. people sometimes forget to help themselves. the cause is retirement, and today thousands of people came to race for retirement and pledge to save an additional one percent of their income.