Enrico Pucci, a character from the manga "JoJo's Bizarre Adventure: Stone Ocean" by Hirohiko Araki, had complex motivations tied to his role as a priest and his quest for a "heavenly" world. His desire to create a new universe stemmed from his belief that humanity needed to be freed from the burdens of free will and suffering. Pucci theorized that by achieving this, he could bring about a form of salvation for the world.
He killed as a priest largely because he saw himself as a servant of a higher purpose. He believed that by eliminating certain obstacles—like his enemies in the story—he was ultimately working towards a greater good. His actions were driven by a conviction that a perfect world could only be achieved through his vision, which justified his violent actions in his deluded mind.
Pucci's character embodies themes of faith, ambition, and the moral complexities of good versus evil, making him a compelling antagonist in the series.