this man, a former Guardian from the planet Junction 5, was one of the galaxy's most lethal assassins, during the years leading up to the Clone Wars. He was known for his ability to take down prominent figures and high-profile targets without getting caught. He appeared on the planet Null, shortly after the Battle of Geonsis, amidst the assassination of Delaluna's leader, Samish Kash. When Count Dooku arrived to meet with the leaders of the Station 88 Spaceport, Obi-Wan Kenobi and his Padawan, Anakin Skywalker, witnessed Robior meeting with Dooku in a remote location. Their immediate assumption was that Dooku hired Robior to kill Samish Kash, despite Robior's connections to Lorian Nod. This assumption was proven true when it was discovered that Kash had survived, nad the Jedi witnessed Robior meeting with Count Dooku. When the negotiations for control of the Station 88 Spaceport revealed that its founders would remain with the Republic, Dooku tried to eliminate the founders. Robior tried to joint he fight, but Obi-Wan used the Force to push him away. Robior's head hit a rock, and he was knocked unconscious for the remainder of the battle. He was then taken into custody and held for questioning.