Above: a cover for Ellery Queen’s The Dutch Shoe Mystery originally published in 1931, with this Pocket paperback appearing in 1952. This is one of those deals where the author and lead character were presented to audiences as the same person, but the secret got out pretty quickly that Ellery Queen was actually two guys named Frederic Dannay and Manfred Bennington Lee, but those were pseudonyms too. Their real names were Daniel Nathan and Manford Lepofsky. Maybe they wrote mysteries because they loved to mindfuck people. And the title, as well, is a bit of a misdirection—the book has nothing to do with Dutch shoes at all.
1989—Anti-Feminist Gunman Kills 14
In Montreal, Canada, at the École Polytechnique, a gunman shoots twenty-eight young women with a semi-automatic rifle, killing fourteen. The gunman claimed to be fighting feminism, which he believed had ruined his life. After the killings he turns the gun on himself and commits suicide.