Hi xxxxx Dunbar (lol)
You said that your user name is your real name and you provided your brother's user name. There are two Dunbars on the list: Kari or Nathan.
You're a dude - check, IIRC.
You're in Chicago - check.
Hence you are Nathan Dunbar????????
@JasonVents gets a cookie if I'm right.... unless Kari is a boy's name like Stacey, then whoops!
I'm totally new to twitter by the way