Esture was a a male Human Lieutenant who was stationed on the Death Star.
In 0 BBY, Esture was stationed on the first Death Star where he checked on the droid P-RC3, who had a memory breakdown during the Battle of Yavin. He called Atour Riten, the Death Star's librarian and owner of the droid, but was tricked into believing he instead called flight control by mistake, when Riten answered as such, due to him being in a desertion attempt.
He was killed afterwards when the Rebels attacking the Death Star managed to cause the battlestation to explode, killing everyone onboard.