Den, I'm afraid that Haleigh was injured, perhaps critically, in an accident. I don't know if it was in the MH or elsewhere. I think the Ron, Misty and other members of their families know what happened, and know where Haleigh is.
The abduction scene seems staged to me, their stories seem riddled with inconsistencies, their cooperation with LE and their efforts to find Haleigh seem lackluster at best.
For me, the Aha ! moment was the day Ron married Misty. After I heard about Misty's walk out of the LE interview, I thought "Well that's it - no wedding tomorrow." Nope - Ron was going ahead. He was going to marry a woman who wouldn't help LE find his daughter every chance she got.
Then I heard logistic problems that seemed as if everything was conspiring against the wedding happening that Thursday - their church's published refusal to marry them, problems finding an alternative location, difficulty in finding another officiant, for example. I thought, "OK, they'll postphone it." Nope - Ron was going ahead.
Then I heard about the LE search. More than 100 professionals searching a nearby field for little Haleigh. I thought, "Oh, now they'll be glued to the internet and to the tv, just like I was, waiting and hoping for some news about Haleigh." Nope, Ron went ahead. He got married while others were searching for "his heart".