from that Axios article I just boosted:
Flashback: The 1992 Ruby Ridge standoff raised the same legal knot now dogging the ICE agent shooting.
In 1997, an Idaho prosecutor charged FBI sniper Lon Horiuchi for manslaughter after he fatally shot an unarmed woman during the standoff.
The case was fought in court for years over the question of federal immunity, but was later dropped by another Idaho prosecutor.