Fox was the commander of the Coruscant gaurd also known as the shock troopers he was vary loyal to Palpatine and hated the Jedi manly Ahoska tano and Anakin Shywalker. Near the end of the clone wars ARC trooper Fives dicoverd order 66 and was hunted down and killed by Fox
After the rise of the Empire he was killed by anakin now Darth Vader because he angerd the sith lord with his stupid actons.