http://www.pennlive.com/midstate/index.ssf/2011/11/who_knew_what_about_jerry_sand.html
Very informative and thorough.
Perhaps this part is the most damning to all the JoePologists still out there:
According to the grand jury, then, here is how McQuearys eyewitness account became watered down at each stage:
McQueary: anal rape.
Paterno: something of a sexual nature.
Schultz: inappropriately grabbing of the young boys genitals.
Curley: inappropriate conduct or horsing around.
Spanier: conduct that made someone uncomfortable.
Raykovitz: a ban on bringing kids to the locker room.
Other than the victimized children and their families, there are no innocents in Happy Valley.