Sounds like something leftists do all the time, threatening the children of conservatives
True.
But that never excuses it.
BTW, I’m not a “twit” so I don’t know how or who he claims the threat came from, but he didn’t really respond, as far as I can tell, to people who asked him why he didn’t contact LEOs, and if he had, why he commented further on the threat before they identified/investigated/arrested the person involved.