Six Degrees of @MayorEmanuel

One of the folks who early on divined Dan Sinker's identity as "@mayoremanuel" was Seth Lavin, who put two and two together from a bit.ly link sent out on the Emanuel feed via Sinker's account.

What we knew about Lavin, besides his being a Chicago Public Schools teacher, is that he's also the grandson of none other than Art Shay (pictured). Both the proud new great-grandfather Shay and Lavin's father, Carl, have been beaming with pride since Sinker's interview with the Atlantic went nucular Monday.