Ron Logan is dead....couple of years ago. Originally, the FBI thought he was BG. Rumor is the FBI gave the case to the CC Prosecutor with him as the Perp.
RL was on/near the Freedom Bridge at 2:09 on 2/13/17. He made a call at that time. No non-LE type knows who to. The girls were being approached by BG at the other end of the trail at about 2:16.
RL's phone "pinged" sometime around 8:00 pm(?) on the evening of 2/13. The exact time and coordinates of the ping are referenced in the RL search warrant. A pretty darn good podcaster claims that the ping could be traced to a very tight area (50 ft or less?), and that the ping came from his property where the girls were eventually found, and not from his house. In other words, that HE found the girls first on 2/13 (the search found them the next day around Noon). This is the single most interesting remaining Delphi question to me.........exactly how accurate was that ping and does it place him at the exact crime scene on the evening of 2/13?
If it does, it does not mean that he did the killing. To me, that's always seemed very unlikely even before RA came along. Most people agree because of his age (although he was a robust MFer), and because RL doesn't look or sound much like BG; however, he sure as hell did dress like BG. which led some people to speculate that he was framed.
In any event, the FBI 'bought' RL as BG, but ISP and the Sherriff did not....thus no charges filed against him.
Anybody really interested in Delphi should start in two places: the RL search PC Affidavit (which literally states the FBI had probably cause to believe he murdered the girls, not just that he had info or things on his property related to the case).