Leviticus 24:17-21

“If a man kills anyone, he must be put to death.  Whoever kills an animal is to make restitution for it, life for life. If any man inflicts a permanent injury on his neighbor, whatever he has done is to be done to him: fracture for fracture, eye for eye, tooth for tooth. Whatever injury he inflicted on the person, the same is to be inflicted on him.  Whoever kills an animal is to make restitution for it, but whoever kills a person is to be put to death.