golden_darkness: your comments here have been priceless; thank you for helping your friend. Do you know if he drank alcohol / beer (in general)? Meaning, do you think it's possible he - for example - had already had a couple beers so didn't want to drive, so maybe he grabbed a $20 and his bike and ran to get more beer at a convenience store? This is all totally hypothetical, but I'm just asking if this is possible. Or do you think he maybe took off on his bike to go swimming to clear his mind, maybe? Or to go sit off somewhere quiet to clear his head, like on top of the levee where the trail starts (pretty view there)? What do *you*, as someone his age and a friend of his, think would be a probable explanation for him to (for example) grab his bike and head out at 1:00am for (possibly) just a little bit? What would your best guess be? You're close in age, similar lifestyles (college, young, etc.), you know your friends' general behaviors. Just curious what your best guess would be, and/or if anything I suggested above might be possible, with you knowing Michael. Thanks again!