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Clothing on body
Pink dress (size 4T, Brand "Mon Petit)) with colorfully embroidered butterflies and the words "Follow Your Dreams"
Size 4 Diaper - "Parent's Choice" brand
Other items found
with body
military issued camo shirt (desert digital pattern)
Silver child's bedspread
Grey adult sweatshirt
Small green blanket
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Just quoting a partial of a post to remind us what other effects were found with the body as they may contain signs as to who Madison was with at the time of her death.
Was there ever any answer as to whether the body was found by the northbound or southbound side of the interstate? It seems very relevant to me as a lot of things here point to a long road journey. The dump site near a road rather than in a forest or some place like that, that it was an interstate rather than a smaller road, and the availability of a 'suitcase' type bag, which suggests to me that it was already in the vehicle, and this was a dumping of convenience.
But I'm trying to understand what the roads say... If Madison spent most of her short life in the region of south-eastern Arizona to New Mexico (where? south?) or maybe northern Mexico (can they rule that out by the pollen and isotopes?) then this I45 doesn't appear to be a direct route from those places. Instead it suggests to me that they've already left behind Arizona/New Mexico and traveling between either Oklahoma City (unlikely but possible) area or (more likely) Dallas/Fort Worth to Houston, and which way around that is makes a difference.
If it had been a purely east-ward route from AZ to New Mexico to Houston, then the map suggests to me (as a non-US person) that the intended destination could be anywhere between Houston and Florida. But the I45 suggests something between Dallas area to Houston area, and possibly not much further than either of those? But it seems that due to the availability of the bag/case it's likely to be a reasonably long journey of at least one night, and possibly actually moving home.
Who is likely to have a military issued camo shirt? Would you find something like that in a used clothing place or a homeless shelter or would it be more likely to be restricted to someone on recent or active military duty? I know there's a very large military base in the Dallas/Fort Worth area...maybe a military guy who has a girlfriend/sister/cousin which a child with a disability? Maybe some of his friends/colleagues on base would remember seeing a little girl like that with him or hearing him complain about the child of a girlfriend who then gradually ceased to be talked about or seen?
On the other hand I would expect some kind of nefarious purposes for this journey, or at least someone fearful of capture by police if the body was taken to a hospital, so maybe someone with outstanding warrants.
But that goes back to the convenience factor for me. There wasn't enough time to detour to a better 'resting place' or to take the body to a hospital, leave a false name and walk out? Presumably no sense of necessity for a hospital. So it feels like Madison died in the vehicle rather than dying at home and a deceased body being transported away from the home.