I don't think BM is smart - certainly not in a high IQ/book smart sort of way. I can't name a single thing he's done since this happened where I've thought - wow, that was smart of him. Actually, I think he's very much the opposite of smart. We're giving him waaaaay too much credit simply because there hasn't been an arrest yet. Some of the things from BM that I believe were less than smart (all JMO, MOO):
The staged bike ride (really narrowed down the list of suspects, IMO)
The mountain lion narrative that he pushed (he should know better - it's a ridiculous theory)
The strange social media activity (especially if he logged in as SM from his phone, as we suspect)
The note he left in Salida (no description of SM??)
The weak alibi in Broomfield (no tools??)
The FB video (didn't involve LE in that?)
The "mechanical thing" with the bobcat (who talks that way??)
Continuing to play the role of victim - a victim who throws everyone else under the bus
And, possibly most incriminating, the peanut butter on the grill. Building an insanity plea? (okay, just kidding on the last one)
I know I'm leaving off some big ones, but that's a good start. MOO.
I don't think BM would know a red herring from a blue heron. I don't think there's any sophisticated misdirection going on here - and I think SM is close to home and will eventually be found. Maybe not this week - maybe not even this year - but I do believe she'll be found. MOO.