Leviticus 24:17-21

“‘If a man beats any person to death, he must be put to death. One who beats an animal to death must make restitution for it, life for life. If a man inflicts an injury on his fellow citizen, just as he has done it must be done to him – fracture for fracture, eye for eye, tooth for tooth – just as he inflicts an injury on another person that same injury must be inflicted on him. One who beats an animal to death must make restitution for it, but one who beats a person to death must be put to death.