Alternative version.
If BM killed SM, he probably had enough guts NOT to hide the body either at the job site, or in the house. (Even PF got rid of KB’s body well).
BM also understands that LE would look precisely the way we all thought, and search his house, and his job site, first. It is logic, and if he did something in the meantime, it was beyond logic.
So I wonder if it was a diversion, of sorts. To create this noise, that the neighbor would hear. So that LÊ would first search at the job site, and the house.
The body could be at the other side from the house than the job side.
BM could provide exactly this explanation, that he was in a hurry as he was working two jobs.
If LE did not find anything in either the house or the job site, it means BM wanted them to spend the time looking at these places. And SM was killed and hidden somewhere else.
Where? Maybe where the bicycle was found, or wherever people saw SM last, even alone.
The interview with TD should be looked at, again, precisely because BM did not look right, physically. It is possible that he was re-hiding the body. Maybe the timing of TD running into him was a coincidence. So I would look at all areas around that place.
And also, if the mountain lion appears in BM’s narrative for the first time during conversation with TD, I would look at the nearest hills, maybe “someone” did drag the body up one of them.
I wonder if TD ran into BM accidentally that day, after BM was re-hiding the body. And BM was frazzled, so to say. If that is the case, subconsciously, BM would be walking TD away from her site. I have to look at that video again. If they walked, it was away from where she was. If he pointed at some hill, she might be in the opposite direction.
I would also re-interview everyone who could work with the equipment at the job site other than Barry.
And look at all “other” potential “personal connections” from his job site that could be helping him. Younger than him, sex irrelevant at this point.
ETA: if LE found something somewhere, any traces, it is one story. But if none, I would think Barry hides objects “the female” way.
What is the female way? It is not a secret table drawer. It is something unused.
I bought old clock and they stopped working immediately. They were standing at my shelf looking as they were - old and not working. I hid something in the back of it. If anything ever disappeared (and things did), it was never from that clock.
It has to be old and unused. Something he abandoned - old house, maybe even Indiana - something that in people’s mind, is not connected to his active sites.