We don't know if her disappearance has anything to do with her work. However the Feds being involved, her links to this securities fraud case, and that sudden aggressive raid on her home seem to point that way.
But we don't know if she has a part in that fraud case, or whether she is a victim of it.
I'm leaning to her being a victim....for now. What if she inadvertently stumbled on info she was not supposed to know. Someone found out or suspected she did, and could not risk her going to the police with info. Or maybe she already contacted police.
So someone set up an innocent sounding or social meeting at that apartment complex (which from previous sleuthing here, we know has an iffy reputation, as does the Onni group, maybe connected to all those LLCs), and asked her to bring the laptop, which would subsequently be destroyed... and Heidi made to "disappear"
At the same time, IF Heidi was complicit in something, whoever in that group may see her as a liability that could lead to the same result.
Just odd that she would bring her laptop to a football game, and leave at halftime to meet a boyfriend, friend, or go to a preplanned recreational activity.
I so hope, that she is in hiding....but then... her dog.