Yorn
this wealthy Baron left his holdings on the planet Coruscant and traveled to the moon Kalakar Six, a century before the Battle of Yavin. Yorn was interested in the Dark Side of the Force, and had heard that Kalakar Six was a nexus of Dark Side power. He and his followers built a lavish fortress on the moon, to serve as the base from which they explored the Dark Side of the Force. One of the regular supply ships to Kalakr Six returned to find the entire group of Dark Side devotees dead, except for Yorn, who had gone mad and ripped out his eyes and tongue.