officially. aurora, illinois, police have tweeted -- we have an ongoing active shooter incident at 641 archer avenue. this is an ongoing active scene. we will provide more information once confirmed. police have told us they set up a command post in the area. i want to bring in shawn henry, former executive assistant director of the fbi and nbc news national security analyst. also have kevin tibbles with me and jim kavanaugh. shawn, what does all of this tell you? the police are saying it's an active scene. they're setting up a command post. the cane county officials are calling it an active shooter situation. atf in chicago is saying they're responding to an active shooter situation. the city of aurora has tweeted out it's an active shooter situation. and you see the response that we've got with them shutting down the schools. >> yep. i think, ali, this is really the