The Synagogue Attack Stands Alone, but Experts Say Violent Rhetoric Is Spreading
New York Times
At his trial, the man who killed 11 at a Pittsburgh synagogue was portrayed as a lonely man engulfed in online extremism. Experts say many people fit that description.
https://www.nytimes.com/2023/08/04/us/pittsburgh-synagogue-shooting-antisemitism-bowers.html