Letterman Finale

INDIANAPOLIS (AP) — It's David Letterman Day in his hometown. Letterman signs off the air for good tonight. So today is David Letterman Day in Indianapolis. Mayor Greg Ballard has issued a proclamation noting Letterman graduated from Broad Ripple High School and Ball State University in nearby Muncie. Letterman also worked as a local TV weatherman and as a bagger at a local supermarket. CBS airs the final episode of Letterman's "Late Show" later tonight.