Paterno testified under oath that McQueary had said that Sandusky was engaged in fondling or "doing something of a sexual nature" to a boy.
Joe's own words in his grand jury statement. He knew something sexual had been alleged between Sandusky and a young boy. The "He didn't know! We were all fooled!" defense doesn't fly. He knew.
What more did Joe need to hear before he separated himself from Sandusky? Still, he was on campus, just last week. Did Joe think that the allegations weren't true? Couldn't be. The University barred Sandusky from bringing kids on campus. That alone, should have been confirmation that the allegations weren't baseless. He did nothing. He looked the other way. He fiddled. And that's the best case scenario.