"Who" Over Williamsburg

There was some sky writing up there on New Year's Eve. We caught this "Who" over Williamsburg around 11:30AM. Later, we noticed a plane doing some writing over Manhattan, when we were about to have lunch in Curry Hill. In any case, the "who" was the only word that we know of that appeared over Williamsburg, leading one of the soccer players in McCarren Park to point at it and shout several times, "Who killed Saddam?" If anyone caught a full sentence or phrase over Brooklyn or Manhattan, we'd love to know what it was about and who was behind it. Maybe, Whole Foods?

UPDATE: As a commenter noted, and as Gothamist posted, the sky writing was part of an ad campaign for a TV series. A pretty dumb ad, though, since it didn't note the show. Duh. Glad we were only unwitting tools for an inept marketing effort.