I'm certain Sandusky is guilty, BTW. Its just all the "who knew what, when, and where?" stuff that I'm not certain about.LOL
Normally I would agree that we should wait for specific evidence but in this case the amount of stuff that has already come out, the nature of what has come out, the hesitant acknowledgement of certain facts already by the parties involved, etc. can lead us to be pretty sure that something happened with Sandusky and the Paterno and the PSU administration knew enough to stop it and didn't.
We still may see some changes in degrees of severity and response but I feel pretty confident right now that Sandusky should have been arrested, Paterno and the administrators who had knowledge and didn't act should have been fired and should be subject to further investigation, and that a high probability exist that others were involved as well.
We probably will never know everything that happened even after the courts take their shot at this case but even with what we know I am confident that action had to be taken and additional action still needs to be taken.