Read Numbers 35:21 Using Other Translations
Or in enmity smite him with his hand, that he die: he that smote him shall surely be put to death; for he is a murderer: the revenger of blood shall slay the murderer, when he meeteth him.
or in enmity struck him down with his hand, so that he died, then he who struck the blow shall be put to death. He is a murderer. The avenger of blood shall put the murderer to death when he meets him.
Or if someone hates another person and hits him with a fist and he dies, it is murder. In such cases, the avenger must put the murderer to death when they meet.