Hans Zimmer— the man that was in the same bookshelf section with Raven just now.
He's a guy that hates the world.
Why? Well, because of its unfairness.
Ever since he was born, Hans felt like the world was against him. His mother died the very moment he came into the world, and that tragedy, instead of gaining him sympathy, only brought hatred.
His father despised him for it, blamed him for a death that wasn't his fault, and in the end, disowned him completely.
He was taken in by his grandmother, the only one who cared. She raised him with what little she had. Hans tried to live normally, to at least experience the small joys of being a child. But life didn't give him even that. When he went to school, he was bullied mercilessly by some bastard kids.
Then when he fought back—
The parents of the bullies got involved. They weren't ordinary people; they had connections, money, and influence. They put pressure on Hans' grandmother, harassing her in ways that broke her livelihood.