How is that relevant to your claim that Freeh absolved the board of trustees?
Because when you are "absolved", you are absolved of "something".
Absolution has an object or wrong from which you are absolved.
Read your definition.
Spanier, Schulz, Curley, Paterno were/are accused of a coverup of Sandusky's crimes.
Is the Board of Trustees accused of the coverup by Freeh as well or are they absolved of the coverup by Freeh???