a girl named valentina suriani.t shooting occurred left a note addressed to my supervisor and he called himself the son of sam. >> he talks about being possessed by a man he refers to as sam and the man he refers to to as his father. and he says that his father requires blood. >> this got people's attention. i think it was the sheer randomness to it. the fact you could be doing something as simple as sitting in a car talking to a friend, and someone would come behind you and open fire. it was pretty terrifying. it was frightening. >> i was in charge of the nighttime operation. task force that wanted to shoot him on sight. that was our job. take him out on the street. we flooded the streets of new york. >> people died and we're trying to stop it. it's not you. it's everybody. that's all we are trying to do. >> okay. >> in terms of the victim count, that doesn't place him at the top of the list in terms of the most deadly serial killers, but it was new york city. what happens in new york city, well, that's internation