Deuteronomy 21:1

If in the land that the Lord your God is giving you to possess someone is found slain , lying in the open country , and it is not known who killed him,

If someone is found slain, lying in a field in the land the Lord your God is giving you to possess, and it is not known who the killer was,

If one be found slain in the land which the Lord thy God giveth thee to possess it, lying in the field, and it be not known who hath slain him: