That is the problem I have with Joe's involvement. He should have asked. If they told them they do no know, he should have made an effort to find out. Could Sandusky have denied if asked, sure but since he was not asked we will never know. You cant blame someone for trying and failing but you can blame them for not trying at all.
Again, we don't know that he didn't ask. You are assuming that he didn't ask. The only person who knew the child's identity was Sandusky.
You keep saying that JoePa never asked. How do you know? We do know that at some point the issue was addressed with Sandusky because he was banned from bringing kids on to campus. So again, how do you know that no one asked about the kid?