 He lived in Manhattan Plaza, a federally subsidized housing complex in the Hell's Kitchen neighborhood of Manhattan, across the hall from Kenny Kramer, the inspiration for the Cosmo Kramer character in "Seinfeld".David then became a writer for and cast member of ABC's "Fridays" from 1980 to 1982, and a writer for NBC's "Saturday Night Live" ("SNL") from 1984 to 1985.During his time at "SNL", he was able to get only one sketch on the show, which aired at 12