Medical response, but i don't think it's done much good to one of the policemen out there. >> i want to back this up because you're giving us the first sense of sequence. you were alerted to look out your window because you heard something already happen on the westminster bridge. >> yes, i heard -- well, from that direction. i don't know exactly what it was, but it sounded like a car crash happening. it was sort of an echoey bang. and then one heard the sound of people screaming and people -- i looked out of my window and saw people running away from that area. and then i saw this man, this a...