Just my :twocents: and I am probably totally wrong, but I'm not sure that Mickey was the actual target for him that night. I think she was just the girl that was there at that time.
I do feel that possibly the disappearance and then finding of BW's bike was planned - again not that BW was a target, just a bike in the vicinity to test the waters with and it happened to be his. I think that possibly BSL had been scoping the area, knew that bumping a bike would throw a person off it and give him the edge he needed, and he was planning everything.
I think it is possible that he worked every detail out (except for Mickey fighting back) - by that I mean bumping a bike, getting the person off it, getting them into the vehicle, where to throw the bike and when so that it may never be found, where to take the girl, etc.
That girl just happened to be Mickey - wrong time, wrong place, wrong day.
But when she fought back, he got injured, he then had to rethink and work on things he hadn't planned on...lot's of media attention, evidence in his truck (so now he had to think of how to get rid of the evidence), the injuries (which I do believe he then thought would be an alibi of him being in a different town at the time), etc.
He had it planned in his mind up to a certain point - and then things deviated from his plans and he had to rethink. That is what gave him up....Mickey fought, he got injured, his truck was captured on video, the bike was found (thank you water level drop and astute fishermen), and he was now flustered...he didn't plan on all of this.
And that is why he is sitting in jail on these charges.
JMOO