In Pittsburgh, residents gathered Sunday to mark one year since the massacre at the Tree of Life Synagogue, one of the worst anti-Semitic attacks in U.S. history. On October 27, a gunman armed with an AR-15 assault rifle opened fire inside the Squirrel Hill synagogue, killing 11 worshipers. Just ahead of the shooting, the alleged gunman, Robert Bowers, posted a racist screed echoing President Trump’s language about an “invasion” of immigrants. He faces a 63-count indictment and the death penalty.