ems, first responders. he had already mentioned several women who were working the radio, who were working dispatch on that sunday evening there. as just all hell was breaking loose in las vegas as a result of this madman taking to the 32nd floor at the mandalay bay hotel and wreaking havoc and terror in the lives of far too many americans. 22,000 people were at that music festival. 58 at least have been killed. and we know at least 515 others were injured as a result of that. so with that said, we are talking a little about gunshot injuries as we wait for the president. so we ll go to dr. amy goldberg, an expert in treating gunshot victims. she works in the trenches, removing bullets for 30 years. so now trauma chief and chair of the surgery department at temple university hospital in philadelphia.