Today we remember the lives lost at the Tree of Life Synagogue in Pittsburgh on October 27, 2018. The Shabbat morning attack, in which 11 worshippers were killed and six wounded—including several Holocaust survivors—was the deadliest act of antisemitic violence in United States history. Synagogue member Judah Samet, a Hungarian-born survivor of the Holocaust, sat trapped in his car in the synagogue parking lot that Saturday morning as law enforcement agents engaged in a gun battle with the shooter.