There were searches conducted by volunteers for the first weekend and they covered 12 square miles. I am hugely impressed with those volunteers, it was hot as all get out and searching through crop fields is gruelling.
Sandusky had more smarts than this perp. Or else what scratched Sandusky's itch was way different from what this perp wanted. While the word pedophile is thrown around in ways that are not quite accurate, in Sandusky's case, I think he truly was a pedophile. I doubt that even now he realises that what he did was damaging to his victims; in his worldview, what he did was motivated out of twisted love and he can rationalise it by all the good stuff he gave them.
It's possible that in this case, the perp or perps aren't really pedophiles but were just looking for two accessible victims. And that is where I'd start looking. Not just at crimes with child victims but also at crimes involving adults with physical disabilities or people frail with age.
The more I think about it, the more I wonder if there is a connection to elderly women who have been raped and/or beaten for no discernible reason. Particularly the latter.