Not sure what is going on at the school but I would think that if some evidence was found near there, it would have been located yesterday. Schools (although not many colleges) are still in session around most of the country. With hundreds of students on school grounds, I would think something might have been noticed after the weekend.
I have to take the local residents words that it is perfectly common to see people riding their bikes at 2am. In my town, not so much.
The thing that stands out to me is that Mickey said she was tired and hungry and this is the reason she told BW she wanted to leave the bar. Tired and hungry. So she and BW fixed the "hungry" part at Taco Bell. Then BW drives her to his home where she sets off on her bike for a 35-40 minute ride home at 2am. This does not fit the "tired" part. Even if it was considered perfectly normal and safe to cycle at 2am, if my friend said, "I'm really tired and my brother has his graduation tomorrow," then I would say, "Let me toss your bike in the back and drive you home. It's really late."
In addition, Mickey has such outstanding looks that I think she would be seen by someone. If, as locals have told us, it is very busy on a Saturday at 2am and Mickey was known by so many who lived there, then I would think she would be seen. Since cycling is so commonplace, she would most likely be seen and instantly recognized by other cyclists who were also biking home from clubs and shows. But no one spotted her at all and I find that odd.
My 3 most likely scenarios are:
1) She was hit by a car driver (drunk or not....I have said this from the beginning...
it is a very real possibility). Why would a person take the body and the bike?
Fear and the knowledge that LE would somehow be able to easily and quickly
identify the owner of the car through forensics off the bike.
2) She was abducted.
3) She never biked home.