conference where you just heard the very latest from among others st. louis county police chief jon belmar. i want to bring in jim cavanagh retired special agent in charge for the atf and an msnbc law enforcement analyst. thank you for being with me and, jim, a lot to go over with this press conference. let s talk about what they are talking about as far as a suspect or suspects involved. one of the things that struck me was the fact that they said that it was probably a handgun, that it was about 150 yards away that the officers saw the muzzle flash. what does that tell you? well somebody was clearly intent on shooting into the police line it looks like and getting away so it doesn t tell you a lot but they could recover a couple of casings there may be. maybe that s from the subject s gun, and they may be able to do some ballistics identification with that if they can get a lead on somebody and even with the national ballistics network to see if the gun has been used in