I don't think that doctor has any reason to risk fourteen years of college and training to help a child rapist. I think he told what he remembered and it likely will match with McQueary's dad's statement because they were listening to the account together. Here is how his testimony differs from what McQueary provided (if Sara's unnamed witness is accurate).
The physician said:
"McQueary heard "sex sounds" and the shower running, and a young boy stuck his head around the corner of the shower stall, peering at McQueary as an adult arm reached around his waist and pulled him back out of view.
Seconds later, Sandusky left the shower in a towel.
That account is different from the hand-written statement obtained by The Patriot-News that McQueary provided for investigators when he was interviewed in 2010.
Its also different than the summary of his grand jury testimony in the 23-page initial grand jury presentment.
In both of those accounts, McQueary says he witnessed Sandusky sodomizing a boy as he stood with his hands against a shower wall.
McQueary says the pair turned and looked at him before he left.
However, Dranov told grand jurors that he asked McQueary three times if he saw anything sexual, and three times McQueary said no, according to the source.
http://www.pennlive.com/midstate/index.ssf/2011/12/another_version_of_mike_mcquea.html
This discrepancy isn't going to allow Jerry to go free, but he might not be charged with this one act of involuntary deviant sexual contact.