I agree with you & once I put a few things together in my mind, I think Ron either got off work earlier than he claims, or snuck out for awhile. It was that propped door. I think that's a trick Misty learned from Tommy & one she used, to come & go as she pleased-since it was reported that Ron had the only house key. If he left to check on her, (cuz Tommy told him noone was home), & found that propped door...he would've gone ballistic. After he blew a gasket, he would've rounded up Misty & made her go along with his plan. I've thought seriously about TN being involved, but I really can't see it. I think she's been covering for Ron, but in a 'just in case', way. & like you, I think GGS lied-either all together, or about the time of her visit. She unconditionally loves Ron & would find a way to blame Misty. I just cannot imagine all of these people in on a murder or a planned cover-up. I think Ron is shocked that Misty hasn't cracked & ratted him out, because he knows he wouldn't do the same for her. I've tried to keep my mind open to other possibilities, but it always comes back to Ron. Every question I have, can be answered, with Ronald Cummings.I dont think Haleighs alive. I think Ron & Misty know the truth about the crime. I dont think anyones directly involved but them. I think Ronalds Mother is in denial. I dont believe Rons grandmother was over to the house that night. I think she just blurted it out to the press that day to deflect guilt from her beloved grandson. I question whether Ron was at work all night regardless what his timecard shows to the contrary. People can and do leave. We know he has no problem breaking rules/laws.
I think he may have hit her and she died. Maybe he got Misty to help stage the bogus crime scene with him/for him just as she sold illicit drugs with him. I think he put her out in front of himself to make the drug-buy contacts and when he felt it safe, he met the buyers. I think the kill & coverup went down much the same manner/M.O. as we see on the illegal drug activities videos. He had her make the 911 call instead of himself.
I think Rons crying was acted/staged. I think his threatening to kill whoever stole his dtr was for show to deflect blame from himself. I think the cops suspect the two of them, but just dont have enough evidence yet. But I believe they will one day, one way or another. I think the cops know Mistys covering for Ron. I don't know what they did with her, maybe threw her to the gators. I think LE was stellar to do this drug sting on them. They may be in for a long time.