I've watched several videos from several angles. I disagree; it is somewhere in the middle. There was never any threat posed by Renee; the videos show she was moving slowly with a clear intention to turn away from ICE agents. If you watch from before they exited their vehicle to intimidate her, she was actually trying to turn before ICE came into the frame.
She was not blocking the road. A car passed her immediately before the shooter stopped. She was clearly waving them to pass her. There was no reason for ICE to stop at all.
Renee was calm, speaking politely and smiling. She even told them, "I'm not mad at you, bro." ICE approached her vehicle with aggression. What Renee's wife was doing is irrelevant. You cannot shoot one person because another person was mean to you.
Her wife started telling her to drive after armed men started trying to yank the car doors open and leaning into the car, and imo did sound panicked when she was saying it, panicked that armed men were surrounding her wife. I interpreted that as her urging her wife to drive away from the threat, not ram an officer.
If his previous experience coloured his response, he had no business being in the field with a gun. The onus is on him and his employer to ensure he is suitable to be in the field, not the general public.
Armed law enforcement agents should not "act on instinct." Their training should override any instinct to kill, and if they are not able to calmly assess a threat without instinct taking over, again, they have no business being in the field, and the onus to ensure they are able to act safely is on them, not the general public.
The second and third shots and his behaviour after the fact are indefensible. After the first shot, he fired, and any hint of danger was eliminated. They were all at the side of the car, which was pointed away from them.
Calling a victim "a fucking bitch," seconds after shooting her to death, is not the actions of a man who fired out of necessity; it is the actions of an angry, aggressive male with no remorse that he just ended a life.