If you read the report Curley met with the executive director and told him that someone saw Sandusky in the locker room shower with a boy and felt uncomfortable with situation and concluded that nothing inappropriate occurred.
Who concluded??? That was THE incident. Here from USA Today:
March 1, 2002: A graduate assistant (this week identified as current Penn State receivers coach Mike McQueary) sees a naked boy, Victim 2, whose age he estimates at 10, being sexually assaulted by a naked Sandusky. The graduate assistant tells his father immediately.
March 2, 2002: McQueary reports what he has seen to Joe Paterno.
March 3, 2002: Paterno calls Tim Curley, Penn States athletics director, to his home and reports a version of what the grad assistant had said.
March 2002: Later in the month the graduate assistant is called to a meeting with Curley and Gary Schultz, senior vice president for finance and business. The graduate assistant reports what he has seen, and Curley and Schultz say they will look into it.
About March 27, 2002: The graduate assistant hears from Curley. He is told Sanduskys locker room keys are taken away and the incident has been reported to The Second Mile. The graduate assistant is never questioned by university police, and no other entity conducts an investigation until the graduate assistant testifies to the grand jury in December 2010.
The Second Mile was told. Curley, Schulz, Spanier were all told. What more was Paterno supposed to do???