we begin with the latest developments in the mass shooting in illinois. six killed, 38 injured when a gunman opened fire at a fourth of july parade in highland park. that is an affluent suburb of chicago. this video shows a band playing as people begin to run. other footage caught the jarring sound of gunfire. [ gunfire ] imagine the shock and confusion. maybe it was fireworks, they could rightly think. no, those were gunshots. the series of shots you heard followed by a second round of shooting that lasted about 7 seconds. the gunman was on a rooftop with a high-powered rifle. parade-goers scattering in all directions once they realized what was happening. you see a band running there. the crowd left behind chairs, toys, baby strollers, and blankets. here s one witness describing that scene. a few minutes into the parade started, like, the marching band had just passed, i heard a subsequent pop, pop, pop, all in quick succession. i thought to myself, that s not that
you had three different active scenes of investigation in this area. this is something that impacted not only people of highland park but the entire region. what we know through nbc analysis of federal crime data, fourth of july, unfortunately, is one of america s deadliest holidays. we don t usually see it like this. shaquille brewster in highland parks, illinois, we ll be back to you. joining us now, tom winter and cedric alexander, public safety director of dekalb county in georgia. gentlemen, let s begin with reporting of how this happened, how they tracked this man down after the shooting, and what we know about him. right. what we know is it is robert e. crimo iii, not officially named by law enforcement as the shooter. goes by the nickname of bobby.