While his precise motive for making the list remains unclear, Mr. Den Hollander had received a terminal cancer diagnosis, and F.B.I. agents earlier this week were exploring whether that news set him off on a mission of revenge against those he believed were his enemies.
... Mr. Den Hollander described himself as an anti-feminist and had made a career out of filing lawsuits, some of them frivolous, alleging discrimination against men. He also published blog posts in 2006 arguing women were inferior to men and advocating physical violence against them. In one post, he said women should be strapped to missiles and dropped in the Middle East.
https://www.nytimes.com/2020/07/25/nyregion/roy-den-hollande...
Roy Den Hollander, a New York lawyer who had filed a suit against the male-only military draft, harbored deadly grudges. On July 11, 2020, he killed a lawyer in California. Eight days later, he came to our door and killed Daniel. Too late, I learned that he had often described himself as “anti-feminist.” In a self-published memoir, he described me as “a lazy and incompetent Latina judge appointed by Obama.”