Agreed - trying to use another case with a complete set of different facts to justify OP's actions is sort of clutching at the straws...
One "clutches at straws" when they are desperately trying to obtain a result or prove a point. I don't think the OP is doing that since I doubt he's got any actual skin in this game. Please correct me if I'm wrong, Steve -- it is Steve, right? wink wink lol
Iirc, the OP was responding to a post that generally questioned the shooting of an intruder four times. The sole point of the OP was to show that it does happen, of course, and happened in that case in particular.
jmo