they doing it? over the last six to nine months what's happened is the people who are doing this have turned more and more to encryption apps and what they call the dark web, where they can actually do this sort of thing and nobody can -- at least at this point in time nobody can pierce those methods of communication. whether that lasts or not we'll see. >> very chilling and obviously it kind of undermines the idea this was isis inspired. if they were radicalized in 2011 and 2012, isis didn't have nearly the outreach as it did in the beginning. >> doesn't make a lot of difference to the victims, what makes a lot of difference is you try to monday morning quarterback this thing. >> and fend off further attacks. senator risch, thank you. really appreciate it. streets shut down as protests erupt in chicago. let's get right to rosa flores who's there. rosa. >> reporter: hundreds of people