Deuteronomy 19:6

19:6 Otherwise the blood avenger will chase after the killer in the heat of his anger, eventually overtake him, and kill him, though this is not a capital case since he did not hate him at the time of the accident.

Deuteronomy 19:10

19:10 You must not shed innocent blood in your land that the Lord your God is giving you as an inheritance, for that would make you guilty.