Sounds very possible. The secrecy involved in this investigation is beyond anything I've ever seen. What do you think is driving the secrecy and delays?
1 Possible ongoing undercover investigation into organized crime in the area (drugs, MJ, car theft, money laundering, etc.) Keeping the case quiet until they're ready to lower the boom. May have undercover agents at risk.
2 Political - Case is taking longer to solve than they thought, is getting touchy. Sweep it under the rug until after the 2018 election and give the guvner time to re-establish his PR campaign for 2020
3 Boss Hog - Keeping evidence under wraps and applying pressure to pin it on local underlings in local criminal networks to avoid exposing any local powerful interests who are part of the underground crime network
4 Combination of any of the above or something else?????
ETA: Regarding friends on social media, some of it may be the old "keep your friends close and your enemies closer" rationale?
I think the secrecy and delays are a combination of #1 and part of #3.
The following are my thoughts and opinions.
The Rhoden/Gilley murders were up close and personal. Basically, two generations of one branch of the Rhoden family tree were killed. This brings to my mind that the motive may very well end up being resentment/hatred/envy of someone close to them. Several theories have merit for me.
In committing these murders, I think the killer(s) unintentionally opened a Pandora's Box that has led to Betty P's #1 and #3 situations.
I think that a massive criminal enterprise was discovered as a result of the murders. Something maybe interstate in scope be it drugs, vehicle or heavy equipment theft, or whatever. Now, a criminal enterprise has to have a top man/woman and here is where "Boss Hogg" enters. I think the Rhoden/Gilley murderer(s) acted entirely on their own. I just don't see Boss Hogg calling for or sanctioning such a headline-grabbing situation as these murders are. Let's put Boss Hogg on hold for a little bit.
The Rhoden men may have been involved in some way, shape, or form with the large criminal enterprise. I am not putting them down if they were. (Off topic here, the father of one of my life-long friends was an old moonshiner, could make the stuff "taste almost as smooth as sipping whiskey" as they used to say, wonderful people, salt of the earth.) LE could have discovered information at the murder scenes about the big criminal enterprise. LE could be trying to follow the chain of command up to Boss Hogg.
Perhaps the killers are also in some way involved with the criminal enterprise too. However, I don't think their motive is in any way related to it.
Boss Hogg would not be happy with the killer(s) if this happened. In fact, he/she might want to make their miserable lives worse. Boss Hogg may believe that the killer(s) might throw him/her under the bus to get themselves some help.
So, long supposition short, people who have not been truthful with LE and could help the murder investigation progress are doing so out of fear of keeping the attention of Boss Hogg and not really fear of the killers themselves.
Lastly, I still think KR was a crime of opportunity in that his killer knew the others were dead and decided to use it as a cover for theft.