I will admit that it could be a reason.
The problem is, those three people are facing criminal charges. If there was something criminal in RFG actions, that would be different, the motive, to see that his pension remains intact, or to prevent a law suit, would be a very strong reason. Neither a colossal lapse of judgment, stupidity, nor cowardice are criminal, even in combination.
Now, I am worried about the titling of the Mini. It was in PEF's name and the reason was given was in case RFG would be sued. It is possible certainly that he thought the decision was so poor, that it would open him to civil liability, especially if he found out that Sandusky was worse than reported and still was at it. It just seems, from the outside, that while the decision not to prosecute Sandusky was hideously stupid, it doesn't reach that level.
I read on another site that the State Police learned that McQueary was a possible witness after an anonymous email was sent to the Centre County DA, who then forwarded the email to the AG's office. I'm not certain on the date. If that is the case, then I think it's a real possibility Gricar received a similiar email at an earlier date. I hope that possibility was explored.
Was LE able to access his email account? I'm not a computer person, so I have no idea if it's technically possible to recover deleted emails.