maybe he was really revans right hand man and malak was jealous of the power he had and malak attacked him. the pc was far stronger than malak and he cut off malaks jaw and was about to kill him and the other jedi stopped him and took him back to the council. the council banished him and he decided to not use the force because of wut he almost did. not long after he arrives on the planet he was banished to revan and malak disappeared.