First, I'd like to say I'm on nobody's side but Haleigh's. Nobody in this sorry mess is above suspicion at this point, and nobody is 100% believable to me.
The phone call between Misty & Ron that was supposedly about babysitting - how do we know this was the topic of discussion/reason for arguement? Because Misty or Ron said so? Nope, I don't believe anything either one says. What we know is there was a phone call - then the phone was turned off.
Now, HC2 says he went to the mh at 10pm after Ron called him. Fact, Ron called HC2 at some point that evening, after the call with misty. Everything else is not a fact.
For me, the only FACTS are the ones that can be verified by some proof other than the word of a Cummings or Croslin family member.
so we have as facts:
Ron drove recklessly that morning past bus stop (witnessed by neighbors).
Haleigh didn't take the bus that morning.
Haleigh did attend school that day.
Haleigh got off school bus, picked up by Ron. (per Flossie stating this info was stated by LE)
Ron went into work sometime in the early evening and worked "normal" shift.
Phone Call from RC to MC at around 8:30.
Phone call from RC to HC2 a bit later.
Phone call to 911 at 3:30ish am.
Haleigh was/is still missing.
LE hasn't held the mh as the "crime scene". Nor have they really called the mh that.
I don't put much stock into anything any of the players in this case says. I don't know if Misty was there at 10.
My opinion based upon conjecture and gut feelings is that Misty was not at the Mobile Home that night, and neither were the kids. Figure out where they were and you'll find the crime scene.