Delphi murders question ?

I was wondering if any one could update me on the delphi case I had been following the delphi murders of abby and libby and kind of failed to see the latest information about the killer from eariler this year after researching the latest sketch i wanted to know if the bridge guy from "the original sketch" and the latest sketch are suppost to be the same guy? Or are they two diffrent people? If so are they still looking for the bridge guy from thr first sketch? 

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