Showing up on twuitter and it looks like it might have started inside a train car coming to the station. this is another important aspect of it and that s why the police department is asking for those videos to try to piece this together, where the person got on. i mentioned this earlier and this is something extremely important but you have so many different units and if they have to, they can always pull and call them into work. that is something else that s at their disposal and part of having a huge police department like they have. i mean, we have a large city that responds to all kinds of things and remember, the cops are still out there answering 9-1-1 calls and everything else. this is a huge response and as it should be, but they re going to look to start to lessen that out a bit and go across different avenues because we re going to have to start collecting video and evidence all across this entire line of subway cars. i want to bring back in chief ramsey and chief ramsey,
let s bring in chief ramsey on that point. chief, you ve been the police chief, the police commissioner in two cities with subway systems, mass transit systems, with densely very populated urban areas. walk us through, in terms of the uniqueness or the special tis of the search now, the challenges of the search, when you have a, a subway system, and b, a densely populated area. video is going to be incredibly important. trains run on schedule. and so they know the route that the train takes. they know what train that time was at what station. they ll be able to check video from all of those stations to try to find when this person got on. and they ll be looking at all the video from the subway station where the train pulled in after the shooting and look at all of that footage again and then try to backtrack, where is this person then going to? he could take off that sweatshirt, get rid of that green vest. obviously, not going to be walking down the street wearing