jurisdictions were on scene but as the authorities put it they were able to neutralize this very quickly. now we have an investigation into the death of two -- four u.s. marines and questions about what this particular man's motive was and the reason that they're not categorizing it as such now is what do they know about his background? is he former military and did he have a beef with them? with someone at a location or was his overall motivation to spread domestic terrorism? was he acting on the urging of some sort of terrorist organization? authorities don't know. the investigation is underway and when they have the further they'll bing it some. the best reporting has been from jennifer griffin who has been at the pentagon. anything more from your end? >> reporter: what was interesting is that we heard the authorities say that theys2รท, have no evidence at this point in time that this shooter had a