"Their weapons: The suspects had two .223 rifles and two 9 mm pistols. The two handguns were purchased by the man, while the two rifles were not. All four guns were legally purchased, according to officials. The rifles were a .223-caliber DPMS Model A15 and a Smith & Wesson M&P15. One of the semiautomatic handguns was manufactured by Llama, and the other by Smith & Wesson."