Marianna Popieluszko, Jerzy Popieluszko's mother who recently turned 100, is greeted by church rector Father Zygmunt Malacki and Archbishop Angelo Amato, the Vatican's prefect of the Congregation for the Causes of Saints, who represented Pope Benedict XVI at the beatification mass. Hundreds of thousands of Polish catholics attend a ceremony in Pilsudski Square for the beatification of Jerzy Popieluszko, a Roman Catholic Priest and opposition activist murdered in 1984 by Poland's secret police. Warsaw, POLAND - 06/06/2010.