assistance. profile an individual will give you an idea as to we are discussing here, whether it s something that was carried out by a deranged individual or somebody who has some type of ideological component to them carrying out this crime, and so they ll be looking to kind of look at that. but the immediate issue is trying to find out where this person is, and that will require really boots on the ground. we are certainly hoping that if somebody knows of somebody who they are speaking about carrying out this act or knows of somebody buying a gas canister or gas mask or seems to kind of fit this kind of immediate profile of the individual but they call in with that information, a good chance somebody knows this person and is in contact with them, but also just canvassing the area, trying to understand eyewitnesss upon his departure from the subway system, assuming it s at that train stop, where he went. try to find out very quickly how they could identify him and