S01E08 — The Unknown Soldier

An Immortal stalks and kills Donald Magnus, the brother of Nick's former captain Carl Magnus. The Immortal is a soldier, John Ray Fielding, and the brother had killed Fielding's men in the Gulf War due to "friendly fire". Fielding killed brother Donald to avenge his fallen comrades. However, in flashback we find out that Fielding "died" for the first time when Amanda stole orders from him that resulted in the death of him and his men. Now Fielding is out to kill Amanda. Unable to live with the guilt of what she has done, of actually killing people due to her irresponsibility, she yields herself to Fielding who kills her and prepares to take her head. However, Nick convinces Fielding that she has "died with honor" and there's nothing further to be won. Saluting Amanda's courage, Fielding departs.