A Catholic school classmate part of the pedophila scandal in Rome

I promised myself I wouldn't comment on the recent "troubles" in the Catholic Church, but then I read about my former childhood (Sacred Heart School, Tucson) classmate, Msgr. Robert Trupia, in this morning's newspaper. I was shocked when Trupia's story of pedophilia as a priest and Monsignor first broke in the early 1990's. He was suspended from his priestly duties by Bishop Manuel Moreno, Diosese of Tucson in 1992. But he was still on the payroll until 2001, because it took the former Cardinal Ratzinger--now Pope Benedict XVI--until 2001 to have him officially defrocked for defrocking and sexually abusing children. Since, only the Vatican can formally remove a priest from ministry, Cardinal Ratzinger, who was the in-charge guy, shuffled Trupia's case around various Vatican departments for nearly ten years.
From what I recall about "Bobby" Trupia from elementary school, he was a strange kid. He spent all of his time with his mother, who was always shrouded in black clothing--her head covered with a long mantilla that she tied under her chin. They spent a lot of time in church together praying the Rosary and saying the Stations of the Cross. He was a mushy, nerdy kid, and I can't remember him having any friends, or if he was picked on by other kids. I wonder what went on at home? He was an only child, and his father eventually left the family--good Catholic fathers didn't do that in the 1950s. Was it something about his mother? Mrs. Trupia was an odd lady. She was always around school and church, but kids avoided her--all wrapped in her black garb.
Afrter eighth grade, Bobby Trupia went to the seminary. At that time, it seemed the logical step for his life of constant devotion. Was his mother happy? Was the seminary his only form of escape? Or was he just an innocent overprotected boy when he went to the seminary? What happened there? Why did he end up a pedophile? If any of his actions were known, why was he elevated to a Monsignor--one of the heirarchy of the Catholic Church?
I wonder if Msgr. Trupia preached against same-sex marriage? Probably.
I wonder if his mother was alive to see him shrouded in the black humiliation of his secret life?