On July 30, 1944, while serving as a Browning Automatic Rifleman serving with the First Battalion, Twenty-Third Marines, Fourth Marine Division, during the Battle of Tinian, Private Ozbourn died after hurling himself on a live hand grenade thus saving the lives of four fellow Marines.
Private Ozbourn was initially buried in Tinian, Mariana Islands, but later his remains were reinterred in the National Cemetery of the Pacific in Honolulu, Hawaii.