Manslaughter is a type of culpable homicide. This means it's when someone is responsible for causing another person's death, but it's not as serious as murder. If you cause someone's death in a way that's considered culpable (meaning you're responsible for it), but it doesn't meet the requirements for murder, then it's called manslaughter. There's one exception to this rule, which is explained in section 178 of the law.