$4 million? If that's true, O'Reilly appears to be about as innocent as Michael Jackson. Innocent men don't shell out that kind of cash.
If Michael Jackson had settled with that kid for only a couple of million, then I would have been more likely to think he was innocent. But $20 million isn't chump change, even to Michael Jackson. He bought that kid off.
$4 million to Fox News/Bill O'Reilly/their liability carrier IS chump change. $4 million is "go away kid, you bother me," money, not "oh please take this money so you won't tell on me!" money.
That's not to say O'Reilly isn't an a$$ of a husband and/or boss, but I think this whole thing reeks of something totally consensual, and a young woman scorned and trying to hit way above her weight.