Random thoughts:
1. This case is definitely weird. The first people looked at by LE would be family/friends, then the circle would widen. By this time, I'd think the circle has gotten very wide -- but still, I'd think a huge circle has been interviewed by FBI and state LE. Is there anyone they like?
2. The lack of info released by LE: My experience is that they release info only when they need to warn others of possible danger, or when they want info from the public. In this case, I'm sure everyone already knows that police want info.
3. Have there been manhunts? In rural Iowa, I'd think that an army of ATVs could be assembled in an hour or so. I've not heard of any massive hunts.
4. Corn fields: If you walk between rows, the damage would be minimal. But you'd cut the heck out of your arms and any other exposed skin. You could hide a body simply by dragging it 2-3 rows into a field -- corn fields are very dense. You wouldn't need to search entire fields -- there'd be no need for a perpetrator to go beyond 5 rows. (For the most part, killers are lazy and would see no need to go deep into a field).
5. The hog farmer: I'm leaning heavily toward him having no involvement. He doesn't seem bright enough to outsmart FBI agents. As for the polygraph, even an idiot knows that you don't take a polygraph (or a breathalyzer), unless you're a family member and you're wanting to quickly clear yourself (so police can find the real perpetrator). Although I think it's a slim possibility here, I'll hedge my bet by saying that I've seen a few cases where a complete idiot gets away with a major crime simply by being lucky. I know of one case where a couple was killed and their house was set afire. There were about 50 volunteer firefighters and neighbors who arrived and tried to put out the fire -- making a total mess of the crime scene.
6. The dad: You can't put much stock into what he says. He's hoping for a good outcome, perhaps unreasonably. And LE has likely not told him everything they know -- because until the case is solved, everyone is a suspect, including family. As for media interviews, there's no right or wrong thing to say -- imagine how difficult it would be.
7. Electronics: Police can surely tell when her computer was turned on, turned off, browsing history, etc. Same with her phone. The fitbit, I'm not sure, but maybe. Police no doubt have a great amount of information from her electronics and her social media. And contrary to what some posters here have said, social media companies will quickly give that info to law enforcement when a life is possibly on the line. I've seen it done in a matter of an hour -- the detective calls the media company, and the media company begins putting the info together while still on the phone with the detective. Another detective secures the search warrant at the same time, and the deal is done. The social media companies might say publicly that they protect your privacy. But I have literally heard cops tell companies, "I don't want to have to tell reporters that this girl is dead, and it's because your company wouldn't cooperate in the search for her." It's amazing how effective that is.
8. Her social media postings: I don't make much of them. I've got daughters that age, and they post songs/memes of stuff all the time. And the suggestion that she wanted to commit suicide or run off and start a new life? No way. A 20-year-old simply breaks up with boyfriend and moves on. If he were breaking up with her, maybe I could see her being upset, but there's absolutely no evidence of that.
9. She has another suitor? Even if true, that guy would have been tracked down long ago, electronically, and thoroughly investigated.
So, with all of the above, here are my conclusions:
1. They're looking at someone in her circle, which might explain why they're not sharing much info. They've got a good hunch, but maybe not enough for a search warrant?
2. They think a stranger was involved. But if so, wouldn't they be doing manhunts in fields and such? Wouldn't they be asking the public for help in searching for certain types/colors of vehicles, which were perhaps seen on security cameras in town?
3. They think it was someone in town. I don't think so. I'm sure almost everyone in town has been questioned. I'm just not feeling it.
It's all very unusual.
Since I can't find her VSCO linked on her personal social media (as far as I can see), I do think she posted these herself. I use VSCO and it is pretty hard to find someone's account if it's not linked somewhere. A lot of people use it to post pictures they don't want to post on their Instagram or Twitter, but still want their close friends to see. Also, I think the topless pics are probably just sharing her fitness journey. All of that is just IMO, but I wouldn't think anything is out of the ordinary if my friends posted those things!
