Well...think about it. His sequence right after the boss fight on Mt. Gagazet, he tells a summary of his tale. And all the Jecht spheres show certain elements. And during the (I call it the "Zombie Bloodbash" run to the Zanarkand Cloister of Trials, and the story after you beat Yunalesca. That's why I said that on the ID. Oh yeah. And how he proclaims the spiral of death when they're arrested in Bevelle. They way he lived his life, plot after plot, then his final decision to assault Yunalesca--it all brought death.