Genesis 9:5-6

For your lifeblood I will most certainly require an accounting; from every animal [that kills a person] I will require it. And from man, from every man’s brother [that is, anyone who murders] I will require the life of man. [Ex 21:28, 29] “Whoever sheds man’s blood [unlawfully], By man (judicial government) shall his blood be shed, For in the image of God He made man. [Rom 13:4]