I have heard no reason why this guy did all this. We can all only assume that he was in it for the attention. Like Walter Zoomie stated, everyone on this forum would be suspicious if they saw a character as described in the newscast. If I was strolling along my favorite trail and saw this dude, I would probably cautiously eye him while preparing to draw.
But would you pull a gun and point it at him? If so, then you are more dangerous than he is. If not, then would you really argue in favor of the folk who did exactly that?
What really concerns me is that so many people are afraid of the antis. They are afraid to exercise their rights because of fear of what the antis will do. They are afraid to even look like they are supporting people exercising their rights because of fear of what the antis will do.
This fear does half the antis job for them. The gun rights movement can survive a few "over the top" individuals. It cannot survive the rank and file being too afraid of the antis to strongly assert their rights.