Emor

Why is a person who curses Hashem the only person who's chayav misah that we tell (Rashi24,14) "your blood is on your head (you are to blame for your own death), and we won't get punished because of your death because you caused it to yourself"? Every person who's chayav any misah caused their own death and therefore Beis Din won't be punished for killing them!