Orlando Casualty Capt. Antonio D. Brown, assigned to the Army Reserve's 3rd Battalion, 383rd Regiment, 4th Cavalry Brigade, 85th Support Command, based in St. Louis, was among 49 people killed June 12, 2016, by a gunman who opened fire in an Orlando, Florida, nightclub. Army photo SHARE: Download: Full Size (0.42 MB) Credit: VIRIN: 160614-A-ZZ999-0614.JPG Photo Gallery