He could have been planning on shooting her for 20 years or he could have been thinking of shooting her for 1/20th of a second.
It makes no difference.
There is a difference, as it wasn’t with malice intent against the person. Like I said I am not making excuses for this policeman, he made a huge mistake in judgement, and he will pay dearly for it. One reason I would never get into law enforcement, damned if you do, and possibly dead if you don’t.