investigative direction. we have julia chyme depth of homeland security. also jason campbell was with the fbi until recently. darren porch erie tired lieutenant with the new york police department. and former secret service agent for president obama. darren, if i could begin with you, you were on the nypd, i imagine you dealt with shootings in this city before, and helping deal school for this kind of thing. >> shooting in schools is more aberration than the norm in place like new york city. i did my doctor rawl at the university. and even as young lady mentioned rural