Bullcrap. Sandusky was his right-hand man, and Paterno repeatedly looked the other way in order to protect his precious football program. His own grand jury testimony damns him.
Paterno notified his boss, the athletic director, the president's office, and the chief of police.
They investigated. They failed to carry it further stating lack of evidence.
Paterno was the high profile scapegoat to cover for the Trustees and Freeh was their assassin.