I'm still too preoccupied with the massive irony of a gun rights supporter being shot to death to contribute much to the discussion, but on the news yesterday it was suggested the only way of preventing this is to have politicians both sides of the divide unite in condemning this kind of violence. I believe this is how UK politicians dealt with the deaths of Jo Cox and David Amess, and most of them would do well to bear in mind that extremism tends not to discriminate too much before putting their foot in mouth (I can't speak for those at Local Government level though - there's always one or two).
The trouble is over the pond, it's taboo to admit that guns are the common factor in countless pointless deaths so they have to come up with other excuses, like democrats, or RFK blaming video games, drugs and social media earlier in the week. Anything to avoid the elephant in the room.