http://news.yahoo.com/video/body-shane-montgomery-pulled-schuylkill-152200807.html
The video here shows for a very brief second what the surveillance camera behind christie's nail salon looks like when it is nighttime. It's a good example b/c it actually shows someone walking [I dont think it's Shane b/c the date says Dec 10, the day the video was discovered by authorities,,,,and the person is walking toward Main St and not the lot].
Here is the lot lit up in case anyone needs it for reference
http://i.imgur.com/3cWxaEr.png
Maybe the camera quality is actually better when LE has the tape and uses technology to improve the picture, or else I wonder how they identified Shane in the video in the first place........but watching this had me think how after entering the parking lot,maybe Shane could stepped back out of the lot and immediately turned walked back to the path to the left [wouldve been on his right at that point] and maybe not be noticed......? Dark clothing, dark and grainy video.........just a thought b/c I know a lot of us had a problem believing he fell in at the parking lot or went up on the ledge. Maybe he went this way and found himself near the river again, at more dangerous spots, like the path queezy took in the beginning of the venice island hike video.
But then I think with how big the search was for Shane, SOMEONE would have noticed this..... but just putting this out there anyway.
ETA, I just realized this doesnt explain where the keys unless he dropped them in the water at the lot and then left the lot