nefarious act. so i think while it looks like things might be calming down on seventh avenue, police and those investigating are probably in overtime now trying to get complete answer as to who was this pilot, why was this helicopter there, was it somewhere it was supposed to be or not and what happened to the helicopter. because obviously an aircraft going down over manhattan is a serious matter not just for terrorism concerns but just because this is the most densely populated place in the country. >> of course it's incredibly dangerous. jow answered my question whether there would have been that emergency call. just for any of our viewers who are tuning in, of course, we are still covering the hard landing of a helicopter. the fdny says one person has been killed. this was on the roof of a building in seventh avenue. our white house team now reporting the president of the united states has been briefed on this crash and is monitoring it from the white house. we've also had some our