Robert Bowers, a 50-year-old white truck driver, is prosecuted on 63 counts. He is accused of having perpetrated 11 murders aggravated by the qualification of an anti-Semitic act.

On October 27, 2018, he burst into the Tree of Life synagogue in Pittsburgh, armed with three pistols and a semi-automatic assault rifle. Shouting "all Jews must die," he opened fire and killed 11 people in the middle of a Shabbat ceremony in a historic Jewish neighborhood.