These times make no sense at all. What I am reading is that the mother put Mariah to bed at 11 pm. The boyfriend said Mariah got out of bed at Midnight, and he told her to get back in bed. Yet. from 11pm - 3 am, the boyfriend was stealing dressers from some old abandoned house.
The first stories said the mother put Mariah to bed around 9pm, then checked on her around 11pm. The bf was alleged to have seen Mariah around midnight in her panties and told her to go back to bed.
I think the police allege the bf was out stealing dressers sometime between 11pm on the Sunday and 3.30 am on the Monday morning? It was only around the corner from their home, so I don't think it took him 4 hours. I think it's very usual for LE to use 'sometime between the hours of...' and it might just mean ten minutes or an hour between those two times.
So the bf would have plenty of time between those hours to drive to Shaw Hwy and steal the dressers. Even if he didn't go out until midnight he could still have time for one or both of those things.
What I surmise is that it has something to do with the statement analysis. The mom never said that her bf put Mariah back to bed, she never said her bf went back to bed himself and the mom and bf fell asleep and heard nothing all night, then they both woke up at 6 am and discovered Mariah missing.
This might not hold in all cases, the person making the plea might be trying to condense things. But the things that were missing from her interviews with the TV crews can also be taken as places to probe for what actually *did* happen in that missing place.
So, her not saying that the bf put Mariah to bed, and then everyone fell asleep and slept all night until 6am, might actually be because that didn't happen. And we now 'know' from the police charges that the bf didn't go back to bed, he was probably out dumping Mariah's body...that is what was probably happening in those 'missing' parts in the mom's interviews. It could have been something else she wanted to cover in that 'missing' part, but now we have evidence that it was this that she was attempting to cover in her speech.
I don't even recall if the mom said she got up at a particular time, or if she just said that it was between 6 and 6.45 that she 'noticed' Mariah was missing. So she might have been asleep and heard him shouting at the child and then him leave. Or she might have been up all night and when he got back maybe they talked about what would happen next and one of them or both of them decided to call the police and report Mariah missing. But in one news report it says the mom called the sheriff's office, and in the dad's interview with Nancy Grace he says he finds it odd that the mom called a number other than 911. All this is 'suggestive' she was awake during those hours and that subconsciously she knew this was not a life/death phone call.
The bf might have been threatening the mom that he'd kill her boys as well if she told on him (if he killed Mariah). I think the mom was upset in those interviews, others had the sense that the first especially she was pretty much eulogizing Mariah with her words, but she may also have been trying to keep control of her emotions to not show she was actually in total grief rather than fear for a missing child, and she may have been trying to keep her remaining children safe from anything she might have been perceived to say 'wrong' to the TV. Other people noted that she apparently sent the boys to school on the Monday and asked why? Maybe she was trying to protect them from a threat in the home rather than from outside it?
Just my thoughts...