Telosian Civil War

Crion's son Xanatos, the Padawan of Jinn, had also been present at the negotiations and at the request of his father, had secretly sabotaged the first meeting to strain relations between the two planets. After Jinn revealed the plot, the populace of Telos rose up against Crion. At the urging of his son, Crion and Xanatos raised an army and proceeded to slaughter the Telosians. The civil war ended in the death of Crion at Jinn's hands. Xanatos, unable to forgive his master, subsequently turned to the dark side and left the Jedi Order.