This is my first post on Websleuths, so I apologize if the information I share has already been covered. I thought I knew the identity of the gentleman in the police sketch, so I submitted my tip with crimestoppers online. Additionally, I decided to google search the young man's name to see what I could find. I saw that he had an account on MeetMe.com, which appears to be some sort of online dating service. If this young man is a person of interest, which I'm not saying he is, then that could be a clue as to how he may have known or found Chelsea. He also has a Youtube channel where he has subscribed to many music bands similar to that of Pick Axe Preacher, the band that played at the halloween party, so it could just be that he was there for the concert and was in the wrong place at the wrong time. I am from Lenawee County, Michigan, and if I recall correctly there was some incident a few years ago pertaining to sex trafficking at truck stops between the Blissfield, MI and Toledo, OH areas. While this theory may be way out in left-field, it is my opinion that no theory should be left unexplored. As always, all of these comments are JMO and my own speculation.