My thinking is it is too soon to bring a PI in. Everyone in this town is still in fear and looking over their shoulder. IMO. A stranger, PI, in town would get absolutely nowhere! It would be a waste of money. The outside agencies are going to have to leave so the citizens feel a sense their town is back to normal. It is going to take time before people resume their "regular" activities. That is why I have questioned the arrest of Mister and the woman (forget her name). One would think this group of friends of JC would try to stay out of LE's attention.
Even as time passes, I don't know how effective a PI would be due to being a stranger. I am sure there are ways to go undercover, such as moving in to work some where. However, that is expensive. And thinking about it, I would not trust the sheriffs department to keep it under wraps. Sorry to say that, but if they come out of this unscathed, it will be surprising.
My opinions only!
I agree with you. No PI is going to be more effective than the law enforcement specialists already assigned to this case. Nor does the family need to hire a PR specialist. I doubt the DA is sharing any evidence with the parents because he's said it must go to the Grand Jury. No way would he share it with a PI. Ain't gonna happen, imo.