Report the allegation to police, mentioning all he had learned including McQueary’s allegations. If McQueary was the villain here, police investigators and Sandusky’s own attorneys (not difficult to get given his posh position) would be the cure.
What part of “HE DID REPORT IT TO THE POLICE” don’t you understand??? He reported it to the duly constituted, fully empowered campus police - who have all the standing of your local constabulary. The Pennsylvania State Police had already washed their hands of it once before.