The episode sets up Fred to exact vengeance on the man directly responsible for her trauma. She's ready to pull the trigger, literally. Then James realizes the only way he can protect her for her own grief is to kill him before she gets a chance.
BUT OF COURSE THAT'S NOT ANY BETTER!! All he's done is replace her direct action with an indirect one and thrown in some bonus trauma for himself.
It's entirely expected from the character and entirely tragic. #shook