Senior Airman Kayla Penn closes a transfer vehicle holding transfer cases containing the remains of Army Capt. Michael W. Newton, Marine Lance Cpl. Sean M. O'Conner, Marine Lance Cpl. Jason D. Hill and Marine Lance Cpl. Joshua B. McDaniels, Tuesday, June 14, 2011, at Dover Air Force Base, Del. According to the Department of Defense, Newton, 30, of Newport News, Va., died June 11, 2011 of injuries sustained in a non-combat related incident in Faryab province, Afghanistan; Hill, 20, of Poway, Calif., died June 11, 2011 while conducting combat operations in Helmand province, Afghanistan; and McDaniels, 21, of Dublin, Ohio, and O'Conner, 22, of Douglas, Wyo., both died June 12, 2011 while conducting combat operations in Helmand province, Afghanistan.