On Thursday May 3, 2012, Heartland launched an advertising campaign in the Chicago area, and put up digital billboards along the Eisenhower Expressway in Maywood, Illinois, featuring a photo of Ted Kaczynski, the "Unabomber" whose mail bombs killed three people and injured 23 others, asking the question, "I still believe in global warming, do you?" They withdrew the billboards a day later. The Institute planned for the campaign to feature murderer Charles Manson, communist leader Fidel Castro and perhaps Osama bin Laden, asking the same question. The Institute justified the billboards saying "the most prominent advocates of global warming aren't scientists. They are murderers, tyrants, and madmen."