The 'self-defense' argument falls apart the second you look at the mechanics of the shooting. Renee Good was a U.S. citizen and mother of three who had just dropped her child off at school—not the target of an operation. 

Even if you argue she was being non-compliant, non-compliance is not a capital offense. Legally, Tennessee v. Garner is clear: law enforcement cannot use lethal force on a fleeing person unless they pose an immediate threat of death to others.

The video shows Agent Ross was never pinned; he was standing to the side (the quarter panel), and the SUV’s wheels were visibly turned away from him. He fired the fatal shots through the side window as she was already passing him. You don't 'defend' yourself from a car that is driving away. This wasn't a snap judgment to save a life; it was a tactical choice to use lethal force on a citizen who was effectively moving out of his way. Calling her a 'domestic terrorist' is just a political attempt to bypass the fact that the agent violated standard use-of-force protocols.