I think come Monday morning LE is going to go to a judge and request a search warrant for a home they have not yet been allowed access to. I believe they have probably interviewed the person(s) living in the home but were not allowed access to the inside of the home.
There are some things happening that give me this feeling.
1. The reenactment of breaking in through the window. It wasn't just done to see if it was possible to go through the window. It was done several times, using various methods with video being taken of it both inside and out. It was done to see what obstacles/objects would be disturbed inside the home and what part of the body would touch those obstacles.
1a. It's possible they have interviewed someone who has a visible bruise, scratch or small cut on their body and LE has noted it and is trying to determine if it could have come from entering the house through the window (hence the reenactment).
2. Cell phones may have continued to ping in the area and metal detectors are being used to completely clear the family's yard. Are these phones located in a neighbors house they haven't been allowed to search?
3. There may be something missing from whoever they suspect, a piercing, a metal button on a piece of clothing they were wearing, a snap, or a metal ring/clasp from shoes or boots etc. (I did see a quick video on the local iowa news this morning that showed someone from LE holding a plastic sealed specimen cup like you would give a urine sample in..they would hold the metal detector over the sealed cup and it would beep, they moved it away and the beeping would stop...they repeated the process several times before they placed the cup in the evidence van. The cup looked empty but there had to be something in it to cause the medal detector to beep.)
The weekend is being used to get all their ducks in a row before taking it before a judge.
Just kind of the vibe I am picking up from what has happened during the weekend. I also think this might be why the parents started to talk to LE again because the focus is on someone else now. Also might be why the parents are steering away from the media for a bit, so they do not say something they shouldn't on accident.
Once again, just my opinion.