well, early on LE said J may have changed clothes and to focus on her face and features as her hair and clothes might be different - when they thought she had maybe left on her own. It was when the backpack was found so people thought they found the clothes she left her house in in the backpack. I'm not sure that's where they found the clothes.
MSM is mainstream media. There is a thread here with the commonly used abbreviations but I don't have the link handy on my phone. Hopefully someone will grab that for you though.
As for what we can bring up from the scanner forum, well I'm afraid to touch that one because I always thought the answer was nothing. I also know nothing about Jessica changing clothes. If there is a post on that in the basement I would really love a link because I missed that info too.
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