One point that should be blatantly obvious to everyone at this point.
It doesn't matter which side of this debate is right or wrong....
The fact that on a gun centric forum there is a controversy over whether shooting the guy under these circumstances is justifiable should raise a HUGE RED FLAG as to whether a jury of 12 "normal" non-gun centric folks will think it is reasonable.
They set the reasonable standard, not us. And if we can't even agree... good luck with the jury.