The Guy on 103rd and Central Park West

I've been thinking about homeless people lately. Maybe it's because once it gets hotter in New York, they start to hang around more outside. I think one thing that every New Yorker has in common is that they all have their neighborhood street people. They might not be homeless, but they hang around all day, every day. Sometimes there's more than one. Sometimes they come and go for periods of time. Sometimes you spot them far away from your neighborhood and it just feels wrong, even though you feel bad for feeling that way.
There's one man who is always on the corner of 103rd and Central Park West, right by the subway station. He's out there every single morning and most every night, just saying good morning to everyone and hoping for some change. He's on that corner almost year-round too. I've walked up Central Park West many a very late night and seen him just standing there in between crosswalks waiting. For what? I have no clue. Whoever's going into the subway that late probably can't afford to give him any money anyway.
He never hassles you or begs. He actually seems like he would be a pretty ncie guy, but I never talk to him beyond a "hello" or a "good morning" because time has taught me that I should just keep on walking. Maybe someday I'll stop and spend a minute or two.
He recently obtained a bicycle. Nothing too fancy or too shabby-- just your usual bike. The first time I saw it, he was biking just ahead of me on my side of the street, heading downtown. I saw him riding and I just smiled for a couple of blocks, caught up in the hilarity of the idea that he would have a bike. Thinking about it now, I don't really know why it was so funny, but it was. I guess it's that he doesn't really go anywhere that far away. For a second I thought he was headed to a distant location far downtown, beyond the subway station. But when I finally caught up to him, where had he stopped? At 103rd street, with his bike propped against a trash can.
I wonder if the bike was donated or if he actually bought it with his own money. I kind of hope that he bought it himself. I'm not sure if he's really "homeless" either. Where does he go when he's not on the corner? Where does he live? Where did he live?
What is his name?