Dassa was the co-pilot of the vessel that carried Alsakan Vicar Lharra to Ossus for a diplomatic meeting with Jedi Grandmaster Banik Kelrada during the Alsakan Crisis. During the meeting, Kelrada was able to convince Lharra to use her influence to end the war against the Galactic Republic. The Vicar's aides refused to allow the war effort to end, as their religious beliefs dictated that their mission continue, so they poisoned the Vicar's food to prevent her from ending the war. After Lharra died, Dassa confronted Kelrada, believing that the Grandmaster was responsible for the Vicar's death, and attempted to attack him. He was pushed away by Kelrada's use of the Force, however, and the Grandmaster escaped. In response, Dassa activated explosives attached to his chest, killing himself in a