I seem to remember a lot of training about the objective and reasonable standard.
I also think about more than a few of my running routes that go through various cul-de-sacs and quiet neighborhoods. Hell, I remember when I was last in Brunswick GA and did some running off of the facility.
With all the racial bits stripped out, if three dudes in a truck rolled up on me with guns out, I am going to be moving up through the threat matrix pretty damn fast. I wont be talking with them, and I damn sure wont be getting in their vehicle/going with them. If anything, it sounds like he would have had a much stronger defense than they do; because if he had shot them, he was clearly in danger for his life by multiple armed individuals who were escalating a confrontation and following him.
The thing that is making this so much worse from an optics point is the "recusal" letter from the DA.
You don't recuse yourself by talking about the case, explain your credentials, explain your conclusions, and explain and why you feel that not making a grand jury presentation or issuing warrants is appropriate - you say something much shorter and to the effect of: "because of the importance of upholding public trust in our judicial system and the perceptions of bias that have been raised by a variety of individuals, I am requesting that another office evaluate this case on its merits, independent of the stellar work of my office and the professionals who work in it."
By writing that letter the way he did, he pretty much confirmed that he absolutely needed to be recused from this case, and stoked all kinds of fires. I would also be curious how his letter was released, since like the video, it has the ability to substantially influence a jury pool or public perception. One could even say that the letter including his analysis of the case in the public sphere could be even more prejudicial than any of the other individual elements out there floating around.
But of course, I am not a lawyer, so my views should be taken with a heavy grain of salt.