It’s only just over an hour’s drive from MSU to Grand Valley State University (where Brendan is a student).
I’ve always felt he is sadly in the river and it may be his body has got caught up in something or the opposite and was long gone from the near locality by the time river searches commenced.
But, if he had had a fair amount to drink, his decision making could be significantly skewed and he could have chosen to do something that he wouldn’t have sober.
He didn’t have his own car keys, but he had a friend’s. Say he lost them, they dropped out of his pocket or he fell in the river, managed to clamber out, then realised the keys were lost?
He was frantic about this. He could have re-entered the river, wandered around for a bit (finding keys in a river in the dark is futile), lost his footing, and then been swept away. The distance his body would travel from in the river, must be different to the distance if he fell in, a few feet higher from the top of the bank?
Alternatively, he fell in, managed to get out, had lost his phone? But had his friend’s keys. He may or may not have considered sleeping in his friend’s car, then thought it was a bad idea as he’s wet.
What if, by some strange coincidence (we all know they do happen), a person or car stopped, discovered he was from only an hours drive away and offered him a lift? They looked studenty, maybe had a Uni sticker on his car, or said that’s where they were heading, so it seemed safe, it wasn’t very far and besides, as the driver said, it’s too cold to spend a night outside soaking wet, so Brendan got in.
Then, something happened and it seems most likely it was either intentional harm, or accidental, but resulting from something the driver wants to keep secret, hence not coming forward. Perhaps the driver was drunk and crashed, not a right off, but enough for Brendan (perhaps not wearing a seat belt) to be hurt or worse. Or drugs were involved, or there is always the small possibility that the driver was a trafficker or psychopath.
Or, he was dry, but drunk and he decided to walk back. I’ve known people do this.
This is starting to feel fairly similar to Corrie McKeague. I hope the searchers are searching the route between the Universities and I hope the misery Corrie’s family continue to endure is not replicated in Brendan’s case.