they caught up with the tsarnaev brothers. without danny's cell phone and his poise, without the satellite technology in the car, who knows how long it could have taken them? >> what does danny say the brothers said about new york? >> two things. when i spoke to danny they were speaking english. when they spoke to each other it was a language danny didn't understand. he is trying to listen without making it clear he is listening. tamerlan said if you look at me and see my face i'll kill you. danny very wisely said i didn't see you. i don't remember you. he is trying to hear him and hears the word manhattan come out in this language he doesn't otherwise understand. that gives him an indication they might be going to new york. then they ask him can your car go out of state? he doesn't know what to make of that question so he said what do you mean? they mean like new york. so he says, yeah, yeah. my car can go out of state. >> speaking to our john berman. next hour by the way cnn's brian todd will show you where that 90-minute ordeal happened step by step by step. stand by for that.