In late 1990, Ferguson transferred to Adelphi University in Garden City, where he majored in business administration. He spoke out against coexistence with whites, routinely made calls for retributive revolution, and regularly accused others around him of racism. On one occasion, he complained that a white woman in the library shouted racial epithets at him after he asked her about a class assignment, but an investigation concluded that the incident never occurred. Later, he attended a symposium by a faculty member discussing her experiences in South Africa. Ferguson interrupted the professor by shouting, "We should be talking about the revolution in South Africa and how to get rid of the white people" and "kill everybody white!" Students and teachers tried to quieten him, but he started threatening them, repeatedly saying, "The black revolution will get you." He was suspended from the school in June 1991 as a result of the threats. Although he was free to reapply after the suspension, he chose not to.