The question is "was Joe involved?" Involvement leaves open many possibilities as it implies "on any level."
I have not ruled Joe out as being involved on some level but IMO it would be on a very low level if he is involved at all. The "Joe did it" and "threatened me with a knife" tale does not ring true.
In the beginning, Joe was high on my list of possible suspects. With him having been interviewed several times by LE, he has moved down to the bottom of my list. I do think it is a possibility he was there and thus could have gotten caught up in events of that night.
Sometimes we see a person that we really do not want to be involved in any way, so we look for all the reasons why, to us, they are innocent. I have tried to do this with Ron Cummings. I really do not want Ron to be the guilty party; I want that for Haleigh's sake because I find it most heartbreaking when a child is harmed to have it be at the hands of a parent. However, RC's behavior and many statements made by him placed him on my list of suspects. Not only did he not act the way an innocent, grieving father would act, he acted as if he has much to hide, IMO.
If RC is involved, I suppose Joe could be involved also. But, if RC was not involved, I do not see how he would have left Joe alone, if Joe did it. And I believe if Joe did it, RC would have known or would have eventually figured it out/found out.
Nothing really would shock me further about this case EXCEPT finding out that Joe did it and RC had no involvement. That scenario seems implausible, as I believe RC would have gone after Joe.
A person can be ruled out as a suspect or POI, and later on be ruled back in. So far, Joe has been ruled out and remains ruled out. I do not know what evidence LE has but no doubt they have some, perhaps a substantial amount. And none of it appears to point toward Joe because last I heard he was still a free man.
I do not have a favorite suspect. I am disgusted by all of the players, and I believe those already in jail are involved in Haleigh's disappearance. For now though, the least culpable appears to be Joe, IMO. He has gone from the top of my list to the very bottom; but no one is off my list completely, not even TiC or TN.
Also IMO, the fact the Joe has a lawyer is not suspicious. If I were accused of a crime, I would want a lawyer, too.