New Revised Standard Version
and is found by the avenger of blood outside the bounds of the city of refuge, and is killed by the avenger, no bloodguilt shall be incurred.

Contemporary English Version
and are killed by the victim's relative, he cannot be punished for killing you.

New American Bible
and is found by the avenger of blood beyond the bounds of the city of asylum, and the avenger of blood kills the homicide, the avenger incurs no bloodguilt;

Douay-Rheims Bible
And be struck by him that is the avenger of blood: he shall not be guilty that killed him.

And be struck by him that is the avenger of blood: he shall not be guilty that killed him.

he shall not be guilty of blood.

Exodus 22:2 If a thief be found breaking open a house or undermining it, and be wounded so as to die: he that slew him shall not be guilty of blood.

Deuteronomy 19:6,10 Lest perhaps the next kinsman of him whose blood was shed, pushed on by his grief should pursue, and apprehend him, if the way be too long, and take away the life of him who is not guilty of death, because he is proved to have had no hatred before against him that was slain. . . .