As the policeman played by Sean Connery said in the movie, The Untouchables: "You wanna know how to get Capone? They pull a knife, you pull a gun. He sends one of yours to the hospital, you send one of his to the morgue. That's the Chicago way! And that's how you get Capone."
There are a huge number of independent voters in the country and are turned off by this kind of thing. They will determine election results. The If conservatives start doing this it lends credence to the media meme that it is the conservatives who are violent and not the leftists. That’s why I suspect this is a set up or a single wack job.