The Department of Defense announced today that Lance Cpl. Cory Ryan Geurin, 18, of Santee, Calif., was killed in Babylon, Iraq, on July 15. He was standing post on a palace roof in Babylon when he fell approximately 60 feet.

Geurin was assigned to the 1st Battalion, 7th Marine Regiment, 1st Marine Division, Twentynine Palms, Calif.