and a lot of the medical people that we ve been talking to said that they re learning lessons from that war. and i spoke with the head trauma doctor here at pittsburgh medical center. and listen to what he had to sa say. not sure that we have that tape, matt. reporter: okay, anyway, the we re hearing again, this was a really interesting press conference. we heard that this assailant, david bowers, not only did he have that ar-15 rifle, he had three glock handguns. and the medical staff that we were talking to said that these massive weapons, because of the velocity of the bullets, the size of the cartridges, they had terrible wounds inflicted on these victims. david? and matt bradley, the medical examiner there declining to qualify how many of those shells they found in the synagogue behind me yesterday. let me turn to cal perry now. i was struck by something the u.s. attorney, scott brady, said