The arms dealer that I saw interviewed last night indicated that he had sold him several guns including a shotgun, which he was concerned may have been used in the attack......sorry, but a shotgun from 250 feet above and 500 yards away would be rather ineffective. Were I that reporter, I would have inquired about the high powered semi automatic rifles and ammo that he likely sold to the perp......and was he not worried about the potential (Known) use of those???