@momma_k , respectfully, maybe things are not that straightforward. Your first post implored the person who had a new POI to call the LE. The rest sounded like the LE had the case, they only needed it to be airtight.
These two parts are conflicting. Either LE need to tighten the case against the suspect, or they need to find one.
You know where the problem lies? Someone may read your later posts and think, oh, they have a suspect, all Delphi knows who he is, the LE are working on the case, he is local, so my own POI who lives in Kentucky is unrelated...and not call. And yet I feel from the tone of your post that the LE would appreciate new leads.
So your first few posts, and the rest, don’t match. I personally think that people should call with leads, but it needs to be emphasized.