Father Hans Zollner (2nd R) greets Andrew Collins, David Ridsdale (L) and Peter Blenkiron (2nd L), who said they were child sex abuse victims, at the end of a meeting at the Gregoriana University in Rome, Italy, March 3, 2016. Cardinal George Pell said on Wednesday he should have done more to stop the sexual abuse of children in the Catholic Church, acknowledging that he was told of at least one priest "misbehaving" with boys at an Australian school. REUTERS/Tony Gentile