So, going around in circles, beating the same old dead horses, what else can we do as sleuthers other than help get the word out since we do not have all the information that BAU has, here are some possibilities as to how this case can be maybe be solved:
1. Confession (yeah, let's just cross that one off right now).
2. Someone turns him in, either known to him, or less likely, a random sighting.
3. A cold case sitting in a box somewhere gets DNA retested and there's a match...now if it's a cold case you might wonder well how the heck can that help? Well because there might be information in the file as to someone interviewed early on or maybe a POI in that case that could never be proven.
4. DNA is linked in a future case where the suspect is either caught, or there are circumstances similar to #3, a person on the radar in that case is identified as being in the area, matching the sketch, voice or DNA.
5. Some miraculous hit via other investigative techniques in the future that could come to light such as pings, footprint analysis, facial recognition match, surveillance footage, etc etc. Obviously none of that has worked so far.
6. He gets pulled over, random car accident, etc and LE is suspicious for some reason and digs deeper.
What else? There must be more...(please let there be more...)
