Leo Valdez was just eight years old when he supposedly "killed" his own mother. He had been called a diablo by his Aunt Rosa. He had abusive foster homes. He had been to six and had run away from each of them. It was the only way to stay ahead of the sadness. Ever since then, he kept up a wall of happiness. He never let himself get too close to people. He never let them get too close to him. Humor was a good way to hide the pain.