Oh Sure , I'm The SINNER, PHHHHHHAAAZZZZZZZZZZZZZ.
I know many , many reports landed on Ratzinger's desk and I know he personally knew about the alleged abuse by Fr. Dogollado of the legionaries of Christ and Ratzinger started the investigation a few times including when he wanted to influence cardinals to vote for him for pope.
He dropped it immediately when he became Pope.
All these so called "Holy Men" take vows of Secrecy even when the Spiritual lives of Children were being destroyed, and if Ratzinger didn't know he doesn't deserve to be pope.