To keep it simple, he must believe that removing guns from this story makes everything kumbaya. How about removing the CRIMINAL from the story Jim? Doesn't that make for a much better ending?
If the robbery victim had been beaten to death with a lead pipe, Mr. Spencer would not have wasted any of his time writing about it. Even if Ms. Moreno had been shot while being directly robbed herself, we would be none the wiser. I would even go so far as to say that he doesn't think the first victim even is a victim because he chose to defend himself. In Jim's world, it is irresponsible to disobey a criminal.
I could watch & giggle at that .GIF for hours...