Xanatos

“It was not me who started,” Xanatos always said when a fight broke out between him and another student. His blue eyes glittered with genuine regret. And Qui-Gon, like his father, always tried to believe him.
Qui-Gon Jinn discovered Xanatos at the age of three. His father Krion, the ruler of Telos IV, was the richest man on the planet, but he knew that, despite all the riches, he could not give the boy the greatness that Qui-Gon would give him.
Xanatos is the second Padawan of Qui-Gon Jinn, who was unable to overcome negative qualities in himself and allowed himself to be carried away by the dark side of the Force.