A Reddit post from a few days ago when the first detained person of interest in the Brown University mass shooting, who was later cleared, was an American white male and veteran. The now-deceased suspect is identified as a migrant who entered the U.S. through a visa lottery program.
https://hell.twtr.plus/media/8c2e76f25377fb4f968d41a21e9a9ecd5d9cc8ee2771ead81be6cc5020c8ab49.file
