Crawn

Crawn was the Sith apprentice of Darth Tylor. He was found by Tylor at the age of 7, and Tylor sensed immense power in him. He trained him in the ways of the Dark Side, and got him to power that rivaled his own. Crawn was very skilled in the art of saber combat, was very strong in the force, and was almost as strong physically. Tylor sent him to kill the Jedi Master Coleman Kcaj, as a right of initiation after four decades of training. Crawn killed Kcaj, and Tylor gifted him the Goldsaber. Eventually, Crawn thought that Tylor was holding him back and was afraid of him, so he ran to a distant planet, hoping to lure Tylor in.

Tylor took the bait, and traveled to the planet to exterminate Crawn. However, Crawn had become too powerful for Tylor and he lost his head.