Nonsense.
That BS carried weight before Body Cameras. NO longer.
Now the jurors will see for themselves and this cop WILL be convicted of Murder in the First Degree.
Sometimes, of course, there is no need for a lie, and I am not saying that all shootings by cops are unjustified (have to get that out of the way, because sure as hell, somebody will claim that I am saying all cop shootings are unjustified).
Anyway, the justifications come in several flavors, one of which is "I was in fear for my safety with serious injury or death being the consequence of inaction." That's the line this cop and his buddies tried, and that's the line that is easily falsified by body cam, which puts this cop and maybe his buddies into hot legal water.
There is no way this is a murder one case. If the DA persists in that, the cop walks. That may be the intention, for all I know. There is a premeditation element to murder 1 that is absent from the facts n this case.