This "good" Jin was forever gone. But apparently, the old Jin and the new one were precisely the same person, not from the very beginning, that is. Standing atop the building at which Jin was, unfortunately, betrayed; his eyes began to glow green.
A smirk spanned accross his face; like paint stretching across an unpainted canvas. He stood; menacingly. A dark, ominous aura lingering within a small radius of his body. He retained his grin; selfishly. Vindictive. His body brimmed with an ineffable surge of ecstasy. The cool winds of new dawn brushed against his skin as he loitered atop the building.
"I have returned!" He shouted for the world to hear.