Dimitri graduated from USMA in May 2009. After earning his Ranger tab, he was assigned to the 2nd Battalion, 35th Infantry Regiment, 3rd Brigade Combat Team, 25th Infantry Division, Schofield Barracks, Hawaii.
1Lt. Dimitri A. Del Castillo, 24, of Tampa, Florida died in Kunar province, Afghanistan of wounds suffered when enemy forces attacked his unit with small arms fire. He was on the radio calling in support when he was hit. He kept working on the support until he died with the handset in his hand.