I just looked the Schiano/Penn St. stuff up because all I knew about it was what I had read on here. He spent 6 seasons at Penn St, 1990-95, and says he never knew anything about the Sandusky abuse.
Basically there is a third-hand account claiming that Schiano saw Sandusky doing something inappropriate and told a colleague. The obvious conclusion to be drawn is that beyond telling the colleague, Schiano did nothing.
Schiano, as I mentioned, denies knowing anything:
I never saw any abuse nor had reason to suspect any abuse during my time at Penn State. - Schiano.
Greg Schiano, Tom Bradley knew of Jerry Sandusky abuse at Penn State, documents show - The Washington Post