CNN: Former FBI agent. Could be back with new investigative technology, measurements they needed, all kinds of potential reasons. Could also be acting on information - vetting those ransom notes for instance.
First level of vetting would be determining if there was false information in them.
You've also got to have proof of life. If you don't have that, it's being tossed aside.
Casey Jordan, Criminologist. First reaction is to assume it's a hoax. Nobody is going to know what she was wearing that night, and the house was actually broadcast in segments with Savannah. Thinks people are probably trying to take advantage of this. They'll of course investigated though.
As for the pacemaker. She as within the range of her devices at 2am. So whatever happened, happened after that.
If this is the typical check in time, it tells us less than if it was because of her being moved at that time. But this data exists, and law enforcement would have it.
so, i don't think it can be definitively said that no one knows what NG was wearing the night she disappeared. maybe NG only owned a few sets of pajamas and either SG or, more likely, AG, who lives nearby, could identify a pair that was missing. OR if SIL/AG dropped NG off at home and waited to leave until she was ready for bed, they may have seen her in her pajamas.
i do think it's probably more likely to be family/someone close to NG behind this, but reports did seem to indicate that they were taking the ransom note seriously. so i don't know. IMO.