Source: The Pittsburgh Post-Gazette

On September 19, 2001, The Pittsburgh Post-Gazette reported that "Christian, Muslim and Jewish clergy will lead a prayer service tomorrow at noon in Market Square to mourn those killed in the terrorist acts of Sept. 11 and to pray for survivors, rescuers and world peace." The article noted that, "The clergy of Pittsburgh want to give the entire community an opportunity to gather, mourn and move toward healing and reconciliation."