griff jenkinss is back on scene and what do you have now? >> bill it is still fluid here in watertown where the evening for people just waking up. this began at 10:48 where the alert went out active shooter. that has moved here. i followed the police throughout the night. when i tell you they threw everything at what they were chasing i'm telling you i was in the middle of 40 cars in front of me and 20 behind me. it was going 100 miles an hour. it was three or four blocks behind me on mount auburn about five miles from mit where they got out and started to go door-to-door. we went pout with our cameras to follow the police with precaution. one of the suspects, we don't know which one, one came up behind the police with guns drawn and surrendered, but did not fight. when i first arrived on the scene around 1:00 a.m. when the absolute war zone gunfire was taking place and one explosion i object served, they wore probably were aware that this was something more than the run of the mill armed robbery and that is when i began to see the fbi. i sa