 i know you just heard them yell he's got a gun he's got a gun you heard a shot then you hear the counter fire from the secret service snipers uh... lots of questions about what's going on here we're gonna talk about that with a former secret service agent uh... at the bottom of the hour but right now in those crucial moments where this happened there was some eyewitnesses there and one of them joins us now before i do that i want to just set the stage with uh... a little bit of the sound of what happened