Great questions! Myself, I don’t think Suzanne knew anything about Denver/Broomfield, firefighter training/wall, whatever. I’m still sticking to my latest theory that she died sometime Friday, late afternoon/ early evening. I know it all hinges on when that conversation took place with her bff about the wedding plans, but until we see the AA and have a definite timeline, I’ll use what we do know and speculate on that

.
Per MG, BM was working at the river front property Friday night. Why? Per MG, he was acting all weird about the beach Saturday morning, telling her to rake it out, flat, flat, flat. Then cuts work short. Needs chlorine? Was he anticipating murdering Suzanne or was he needing to clean up what happened Friday night? I wonder what that beach looked like Sunday morning. Did he put Suzanne there Friday night in a hurry and then realize with the spring melt off the river would rise and possibly wash away that sand/dirt and expose a cooler? Late Saturday night after clean up at PP, he hurriedly heads back to the property to retrieve the cooler?
It is still noteworthy, whether we trust the hit the dogs made during Andy’s search or not, that they did indicate at that location exactly where BM laid a bunch of rocks. LE didn’t engage much over that, maybe because the timeline already indicated he was there Friday night and Saturday night, and they already suspected that’s when he moved Suzanne. Hey, Letecia did it! I wonder where his cat Bob was during all that time. At the beach Friday night, leave it there for Saturday morning, then take it home and dig a hole close by, go back to the beach late Saturday night, retrieve the body, back to the pre dug hole somewhere closer to PP? Spends the afternoon in town buying chlorine and setting up his alibi for Sunday?
I know, I know, wild speculation but it works in my wild mind!
All MOO, naturally!