baseball field, this happened in a fairly densely occupied suburban neighborhood, sort of a quiet neighborhood. i was just talking to one of the neighbors here who didn't want to go on camera. he was outside getting ready to mow his lawn and he heard this first pop which he thought might have been a transformer exploding. as he heard more and more, his immediate thought was perhaps this was a shooting at the ymca, which is just across the street from the baseball fields. he went inside just in case. when he came back out a few minutes later, there were still gunshots sounding in the air. he was about to call police when alexandria police responded. he saw them flying down this street towards the scene. the alexandria police chief told us they got here in about three minutes after getting that first shots fired call around 7:09 this morning. but it's what happened between when the shooting started and when that call came in that i think is going to be the focus of investigators as they get a little bit more access to this scene. stephanie, i will tell you, we are expecting to hear again from