Just some thoughts on RL and BG. Let''s think through what it would mean IF RL encountered BG after the murders or even knew him before that. OK, then he would have had official contact with the perp and would have some really helpful info to give LE, once he understands who was found on his lower property. But then, RL thinks he has his own interests to protect, such as probation violations of any sort, and he wants to avoid any further upset in his life. So he doesn't tell LE the whole truth. Maybe he fudges a little but gives a few hints. (Remember, this is a hypothesis.) He still wants to exercise control over his life, but then LE puts him in jail for the probation thing. That's a total loss of control over your life, right there. So one would "assume" that at that point RL would come clean on everything he knows about BG, especially after RL passed the point of alcohol withdrawal. Anything to get out of jail and go home. But it doesn't seem like that last step has happened, does it? Unless RL really did meet BG but only gave him a ride somewhere on his way to the Fish Store (what an alibi) and really doesn't know what happened to BG after that. All of that is one train of thought.
I know that LE said they have 50-60 people to consider as suspects, but none of them had the girls deposited in their back yard, and none of them (that we know) have incurred a thorough search, complete with SW, of their premises. So the focus keeps swinging back to RL. He may very well not be guilty of anything but bad judgement and information hiding, but he is central to the case until and unless LE 100% rules him out as anything but an innocent PO.
For those who feel sorry for RL, nothing about this case is "fair". Not one thing.