NBC News Suspect in D.C. shooting had 1,000 rounds, 3 fully automatic rifles, police say Tim Stelloh Mon, April 25, 2022, 8:02 PM A suspected gunman who injured four people when he “indiscriminately” opened fire from a fifth-floor apartment in Washington, D.C., last week had three fully automatic rifles and shot more than 200 rounds of ammunition, authorities said Monday.