bring back darin porcher and leo terrell. darin, i want you to talk to the f.b.i. agent. you know more about as a former nypd investigator. can they get it done before 7:00? are there things you can tell us that maybe we don't know they can track him down with? >> what will be interesting is you will have a forensic analysis done on the shell casings and cell phone that was recovered. what struck my attention was after the shooting, the assailant went into central park. in central park we have far less cameras than we have on the streets of new york in terms of the commercial spaces. however, what is unique about central park. it is participating in a pilot project with drones. central park does fly drones. when i see that the assailant was wearing a backpack it raises my antennas, did he possibly change clothes when he got into the park? these are things police will look to in terms of examining where he exited that park and central park is a really tough terrain to manage from a police perspective. you have a precinct there with limited resources compared to officers th