Interesting, this really sticks out to me - from the article:
“Everything’s on the table, unfortunately,” Poweshiek County Sheriff Thomas Kriegel
told KCCI-TV on July 21. “We’re hoping that she’s somewhere with a friend and she’ll show up Monday or Tuesday and everything will get back to normal.”
Maybe he is thinking she was just gone for the weekend? Anyways, this statement was haunting to me. She doesn't seem the type to take off for a long weekend without telling anyone and blowing off work, so why Monday or Tuesday?
I've followed a few cases where people think being out of town is a good alibi. They usually don't get away with that. Easy to figure out with math and time and retracing routes, etc.