He is 1st indirectly stated by Booth throughout Season 1's "The Soldier on the Grave" when Booth tells Brennan about killing Radik and his regret about doing it in entrance of Radik's son, at the boy's birthday celebration. HOW HE HAS SURROUNDED HIMSELF WITH Worse THAN SLAVES MINIONS WHO GIVE HIM Endless Ego Massage AND TELLS HIM ONLY WHAT HE LIKES TO Hear..