I believe that what we’re looking at is just slow, plodding police work that will never make the news because the keyboard Kommandos want answers in time for their deadline. Don’t know if you’re familiar with this but, in Palatine, Illinois, there was an armed robbery at a Brown’s Chicken outlet where seven people were murdered. The media was bitching about incompetent cops, causing several to lose their jobs. It took ten years to solve that case and that only because someone had saved evidence until DNA technology had advanced far enough to use it.
The chicken restaurant murders sounds familiar.