Abstract
A criminal offense requires two elements. First, it requires proof of misconduct that is specifically prohibited by law. Second, it requires proof of sufficient intention or recklessness to warrant assignment of moral culpability for the act. For example, a person who kills another person intentionally is typically guilty of murder, while a person who kills recklessly or in the heat of passion in response to provocation may be guilty of manslaughter, and a person who kills accidentally is not guilty of any crime. Even if the elements of the offense have been proven by the prosecution, the actor may not be punishable if the defense proves that his conduct was either justified or excused.