Just like Zimmerman, he inserted himself into a situation where he could potentially be in danger.

This is why the prosecutor's line of questioning- which got shot down by the judge- about his prior comments about wishing he were there with his gun so he could shoot people damaging property. Because it establishes his entire motive for going there, with the gun, to begin with.

It would make at least small amount of sense were it his community or property.

But he went across state lines to do this.

And he got exactly what he was looking for IMO, which likely includes exoneration at this point.