"There were five gunshot victims. Two of the wounded were T.S.A. agents, and two others were hurt while trying to escape. Prosecutors said Mr. Ciancia shot Mr. Hernandez several times at point-blank range, went up an escalator, and then, seeing the wounded officer move, returned to fire again. He shot at least two other uniformed T.S.A. employees and one passenger, the documents said. The gun was described as a Smith & Wesson 223 M & P15 rifle. Mr. Ciancia had assembled a small arsenal. Law enforcement officials said two legal guns registered to him were purchased early this year at The Target Range in Van Nuys, a neighborhood of Los Angeles. The rifle recovered at the airport was also purchased by Mr. Ciancia in the Los Angeles area, according to a senior federal official."