Assuming he actually did these things, I wonder if Mrs. Sandusky really did not hear what was taking place, did hear but did not want to hear, or did hear and is lying to protect her husband, and herself.

The trouble with having a society which seems to so utterly condemn people who do these things is that we will probably never know the truth. If people believed they would not be forever condemned for what they did, they might tell the truth. (Or maybe not.)