Even though they never said what happened to him, I don’t believe Diego Armando lived much longer after Trials and Tribulations. With a broken body and shattered heart, his stated reasons for living no longer existed. If anything, I think he died of a broken heart after losing the will to live when locked away in prison.
I thought this too. Shame though; as Godot was the single coolest character in any AA game (Tyrell Badd a close second)