But if the accused [murderer] ever goes outside the limits of the city of refuge to which he has fled and the avenger of blood finds him outside the city, the avenger of blood may kill the accused without being guilty of murder. The accused must stay in his city of refuge until the death of the high priest; only after the death of the high priest may he return to his own property.

-Number 35:26-28

Hmmm, can you say 'foreshadowing'?