Just speculating here....
My fear is that he was probably a foreigner from another country perhaps, and he's long long gone, back home in his country. For all we know he could have been staying in a hotel, by himself, not knowing anyone here, and decided to go out for a night on the town. Or he could have even been staying with friends/relatives, who either are a) not saying anything or b) totally out of tune about what goes on in the news via internet or televised.
It's too bad that his image cannot be televised globally. I know thats far fetched, but I just want this guy caught, and at this point, I sound like I'm really grasping at straws.
I wonder whether one of the other people who was there would have remembered a foreign accent. Unless he's American, in which case it would be very hard to tell.
I'm sharing his pictures in all my networks and begging other people to share. I live in Michigan and a few others who live there too have reposted his images but I'm very appalled by the limited response I'm getting from my networks. People are really apathetic when it comes to sharing things that might actually help.